Processes Patents (Class 536/55.3)
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Patent number: 11642400Abstract: The present disclosure encompasses immunogenic/therapeutic compositions including Globo series antigens (SSEA-4, Globo H or SSEA-3) glycoconjugates and therapeutic adjuvants (OBI-821 or OBI-834) as well as methods of making and using the same to treat proliferative diseases such as cancer. The therapeutic conjugates include an antigen linked to a carrier. In particular, the therapeutic conjugates include a SSEA-4, Globo H or SSEA-3 moiety and a KLH moiety subunit linked via a linker. The therapeutic compositions are in part envisaged to act as cancer vaccines (single valent, bi-valent or tri-valent vaccines) for boosting the body's natural ability to protect itself, through the immune system from dangers posed by damaged or abnormal cells such as cancer cells. Exemplary immune response can be characterized by reduction of the severity of disease, including but not limited to, prevention of disease, delay in onset of disease, decreased severity of symptoms, decreased morbidity and delayed mortality.Type: GrantFiled: July 27, 2017Date of Patent: May 9, 2023Assignee: OBI PHARMA, INC.Inventors: Cheng-Der Tony Yu, Peiwen Yu, Kuo-Pao Lai, Wei-Han Lee, I-Ju Chen, Shu-Yi Lin, Yih-Huang Hsieh
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Patent number: 11325935Abstract: Provided is a method for liberating sugar chains from a glycoprotein, including: a step of brining a reaction solution which contains hydroxylamines (a) and a basic reagent (b) into contact with the glycoprotein to obtain a mixed solution of sugar chains liberated from the glycoprotein and the reaction solution.Type: GrantFiled: September 26, 2017Date of Patent: May 10, 2022Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, SUMITOMO BAKELITE CO., LTD.Inventors: Akihiko Kameyama, Masaaki Toyoda, Midori Sakaguchi
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Patent number: 11079374Abstract: Disclosed herein are methods and kits for isolating exosomes in a sample. The method comprises contacting and incubating a plurality of galectin-3-modified magnetic beads with the sample, followed by subjecting the mixture to a magnetic field and then isolating the exosomes from the magnetic beads by a lactose solution. The kit of the present disclosure comprises a plurality galectin-3-modified magnetic beads, a lactose solution having a pH value of 6.8 to 7.6, and an exosome-free buffer.Type: GrantFiled: March 20, 2018Date of Patent: August 3, 2021Assignees: BIOVESICLE INCInventors: Dapi Meng Lin Chiang, Michael W. Pfaffl, Dominik Buschmann
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Patent number: 10684285Abstract: The present disclosure relates to methods and a kit for diagnosing, prognosing and/or monitoring a gynaecological disease, especially epithelial ovarian cancer, on the basis of altered glycosylation pattern of CA125. More specifically, said altered glycosylation pattern relates to that recognizable by MGL.Type: GrantFiled: July 4, 2016Date of Patent: June 16, 2020Assignee: KAIVOGEN OYInventors: Kim Pettersson, Kamlesh Gidwani
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Patent number: 10233260Abstract: A functionalization is performed with a dissolved oligo- or polysaccharide derivative which contains at least one free functional group, especially an amino group, linked through a polar carbamate linkage and a spacer (X), according to the general formula I:Type: GrantFiled: March 20, 2014Date of Patent: March 19, 2019Assignee: FZMB GMBH Forschungszentrum Fuer Medizintechnik Und BiotechnologieInventors: Thomas Heinze, Holger Wondraczek, Thomas Elschner, Friedrich Scholz
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Patent number: 9834515Abstract: The present invention discloses a process for synthesis of piperidine alkaloids selected from fagomine, 4-epi-fagomine and nojirimycin from tri-O-benzyl-D-glucal or tri-O-benzyl-D-galactal.Type: GrantFiled: May 5, 2015Date of Patent: December 5, 2017Assignee: Council of Scientific and Industrial ResearchInventors: Asish Kumar Bhattacharya, Hemender Rami Chand
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Patent number: 9089156Abstract: Edible compositions, such as sports drinks which limit muscle soreness, and methods of making and using the same are provided. Existing food products are commonly used during exercise to quickly replace fluids and electrolytes lost by sweating and/or to supply a boost of carbohydrates to improve sports or exercise performance. Aspects of the invention relate to compositions including glucosamine to alleviate or prevent muscle soreness. In certain embodiments, the glucosamine may be derived from a plurality of glucosamine sources. Further aspects relate to concentrated products for preparing beverage compositions. In certain embodiments, a concentrated form of a beverage composition may be provided in a packaging. Instructions for preparing the beverage composition having an effective amount of glucosamine may also be provided. Further embodiments may include a notification that indicates the benefit of reducing or preventing muscle soreness following physical exertion by consuming the beverage formulation.Type: GrantFiled: June 5, 2007Date of Patent: July 28, 2015Assignee: Stokely-Van Camp, Inc.Inventors: Vincent Rinaldi, William Racicot, Jeffrey J. Zachwieja, Robert Murray
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Method for producing cationized cellulose and method for producing cationized hydroxyalkyl cellulose
Patent number: 9040681Abstract: A production method of a cationized cellulose or a cationized hydroxyalkylcellulose, including step 1 for adding a cationizing agent to cellulose and mechanically decrystallizing the cellulose and step 2 for adding a basic compound to the mixture obtained in step 1 and mechanically decrystallizing the cellulose, or a production method of a cationized cellulose or a cationized hydroxyalkylcellulose, including a step 3 for adding a basic compound to cellulose and mechanically decrystallizing the cellulose and step 4 for adding a cationizing agent to the mixture obtained in step 3 and mechanically decrystallizing the cellulose. The cellulose and the cationizing agent are allowed to react with each other in step 2 or step 4.Type: GrantFiled: February 28, 2011Date of Patent: May 26, 2015Assignee: KAO CORPORATIONInventors: Akiyoshi Kimura, Keiichiro Tomioka, Toru Nishioka, Kohei Nakanishi -
Publication number: 20150073134Abstract: The present invention is a multilayered composite comprising porous metal oxide particles that are covalently bonded by way of inorganic ether groups to one or more sites of a first polyhydroxyl-functionalized polymer. This first polymer is in turn covalently bonded by way of inorganic ether groups to one or more sites of a second polyhydroxyl-functionalized polymer. The multilayered composites can be prepared by contacting porous inorganic-oxide particles with a sufficient amount of OH-reactive crosslinking agent to form metal oxide particles imbibed with the crosslinking agent, and then contacting the inorganic-oxide particles with a solution of polyhydroxyl-functionalized polymer under reactive conditions.Type: ApplicationFiled: September 5, 2014Publication date: March 12, 2015Applicants: The Regents of the University of California, Rohm and Haas Company, Dow Global Technologies LLCInventors: Joseph Jankolovits, Alexander S. Katz, Oz M. Gazit, James C. Bohling, John A. Roper, III
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Patent number: 8962821Abstract: The present invention relates to a non-toxic process and system for pilot-scale production of cellulose products, and particularly to a process and system for pilot-scale production of cellulose products by using aqueous sodium hydroxide/urea solution pre-colled to lower than ?8° C., in which cellulose could dissolved rapidly. The said process and system can be used to produce fibers, films, chromatographic packings, or nonwovens of regenerated cellulose, as well as to produce a variety of high added-value products by adding other materials such as functional materials, nano-materials, etc.Type: GrantFiled: April 21, 2006Date of Patent: February 24, 2015Assignees: Jiangsu Long-Ma Green Fibers Co., Ltd., Wuhan UniversityInventors: Lina Zhang, Jie Cai, Jinping Zhou, Chuntao Li, Haisong Qi, Yuan Mao
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Patent number: 8940888Abstract: Disclosed are chemically modified hyaluronic acid (HA) derivatives containing hydrazido groups directly linked to the glucuronic acid residues of HA. Said hydrazido groups are used to obtain crosslinked and labeled HA derivatives. The invention further relates to methods of preparation of said HA derivatives.Type: GrantFiled: August 29, 2013Date of Patent: January 27, 2015Assignee: Prochon Biotech Ltd.Inventors: Boaz Amit, Avraham Wortzel, Avner Yayon
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Publication number: 20150011747Abstract: Sugar-acrylic monomers are synthesized to have a carbohydrate moiety linked to an acrylate group. The sugar-acrylic monomers may be polymerized to form polymers, adhesives, hydrogels, and the like. The sugar-acrylic monomers and polymers may be used in tissue engineering, adhesives and sealers, wound healing, and the like.Type: ApplicationFiled: September 26, 2014Publication date: January 8, 2015Applicant: Empire Technology Development LLCInventors: William B. Carlson, Gregory D. Phelan, Phillip A. Sullivan
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Publication number: 20140336369Abstract: Processes are disclosed for the synthesis of the Factor Xa anticoagulant fondaparinux and related compounds. Protected pentasaccharide intermediates and efficient and scalable processes for the industrial scale production of fondaparinux sodium by conversion of the protected pentasaccharide intermediates via a sequence of deprotection and sulfonation reactions are provided.Type: ApplicationFiled: July 23, 2014Publication date: November 13, 2014Applicant: APICORE US LLCInventors: Ravishanker Kovi, Ashish Naik, Brijesh Patel, Muralikrishna Madala
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Publication number: 20140329998Abstract: The invention provides a process for the reductive amination of a carbonyl group at the reducing terminus of a polysaccharide, wherein the reductive amination is carried out at a pH between 4 and 5. The invention also provides a process for preparing a conjugate of a polysaccharide and a carrier molecule, comprising the steps of: (a) coupling the polysaccharide to a linker, to form a polysaccharide-linker compound in which the free terminus of the linker is an ester group; and (b) reacting the ester group with a primary amine group in the carrier molecule, to form a polysaccharide-linker-carrier molecule conjugate in which the linker is coupled to the carrier molecule via an amide linkage. The invention also provides a process for reducing contamination of a polysaccharide-linker compound with unreacted linker, comprising a step of precipitating unreacted linker under aqueous conditions at a pH of less than 5.Type: ApplicationFiled: September 14, 2012Publication date: November 6, 2014Applicant: NOVARTIS AGInventors: Allan James Saul, Francesca Micoli
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Publication number: 20140314671Abstract: Embodiments of the present disclosure provide for labeled probes such as labeled maltose probes and labeled acarbose probes, methods of making labeled probes, pharmaceutical compositions including labeled probes, methods of using labeled probes, methods of diagnosing, localizing, monitoring, and/or assessing bacterial infections, using labeled probes, kits for diagnosing, localizing, monitoring, and/or assessing bacterial infections, using labeled probes, and the like.Type: ApplicationFiled: March 11, 2014Publication date: October 23, 2014Inventors: Mohammad Namavari, Gayatri Gowrishankar, Sanjiv S. Gambhir
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Publication number: 20140316128Abstract: Described are oligo- and polysaccharides containing amine groups. Specifically, described is a new process to manufacture cationic cellulose oligomers. The new cationic oligo- or polysaccharides are useful ingredients in various aqueous compositions, inter alia as ingredients for personal care compositions.Type: ApplicationFiled: October 4, 2012Publication date: October 23, 2014Inventors: Mari Granström, Volker Wendel, Anja Suckert, Claudia Wood, Helmuth Völlmar, Anni Knab, Alois Kindler, Marta Zajaczkowski-Fischer
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Publication number: 20140287471Abstract: The present disclosure relates to variant CBH I polypeptides that have reduced product inhibition, and compositions, e.g., cellulase compositions, comprising variant CBH I polypeptides. The variant CBH I polypeptides and related compositions can be used in variety of agricultural and industrial applications. The present disclosure further relates to nucleic acids encoding variant CBH I polypeptides and host cells that recombinantly express the variant CBH I polypeptides.Type: ApplicationFiled: October 5, 2012Publication date: September 25, 2014Applicant: Bp Corporation North America Inc.Inventors: Sarah Richardson Hanson, Justin T. Stege, Cecilia Cheng, Peter Luginbuhl
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Publication number: 20140275291Abstract: The invention relates to biocompatible, bioabsorbable derivatized non-crosslinked chitosan compositions optionally crosslinked to gelatin/collagen by 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride (EDC) for biomedical use and methods of making and testing such compositions, including a modified acute systemic toxicity test. The compositions comprise derivatized chitosan reacetylated to a degree of N-deacetylation (DDA) of between about 15% and 40%. The compositions are typically bioabsorbed in about 90 days or less and can be made to bioabsorb at differing rates of speed. The compositions are initially soluble in aqueous solution below pH 6.5. The compositions have an acid content that can be adjusted between about 0% (w/w) and about 8% (w/w) to customize the composition for uses that require and/or tolerate differing levels of cytotoxicity, adhesion, composition cohesion, and cell infiltration into the composition.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: HemCon Medical Technologies, Inc.Inventors: Barbara McGrath, Simon McCarthy, Sam Kuhn, Alysha Wold, Michael Stolten, Amanda Bennett
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Patent number: 8829181Abstract: The present invention relates to a process for producing a cationic hydroxypropyl cellulose including the step of reacting a low-crystalline powdery cellulose with a cationizing agent represented by the following general formula (1) and/or a cationizing agent represented by the following general formula (2), and propylene oxide in the presence of water in an amount of from 10 to 60% by mass on the basis of the low-crystalline powdery cellulose, and a catalyst: wherein R1 to R3 are each independently a linear or branched hydrocarbon group having 1 to 4 carbon atoms; and X and Z are each a halogen atom and may be the same or different from each other.Type: GrantFiled: October 29, 2010Date of Patent: September 9, 2014Assignee: KAO CorporationInventors: Masanori Takai, Masafumi Miyamoto, Kohei Nakanishi, Toru Nishioka
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Patent number: 8828732Abstract: The method of labeling a sugar chain from a biological sample employs a single reaction vessel for the sequential performance of the following steps of (a) isolating a sugar chain from a sample using a sugar-trapping substance; (b) washing the sugar-trapping substance having the sugar chains trapped thereon; (c) releasing the sugar chain from the sugar-trapping substance; and (d) labeling the released sugar chain with UV/visible or fluorescent compound having an amino group forming a stable labeled sugar in fewer steps than a conventional ion exchange based technique.Type: GrantFiled: April 28, 2009Date of Patent: September 9, 2014Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Midori Abe, Hideyuki Shimaoka, Hiromitsu Kuramoto
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Process for the synthesis of unprotected pentasaccharides from a protected pentasaccharide precursor
Patent number: 8822659Abstract: Procedure for the synthesis of deprotected pentasaccharides from a protected precursor pentasaccharide through a reaction procedure having five stages whereamong is included an N-sulphation of amino groups and a hydrogenolysis of benzyl groups. Through this procedure a drastic reduction is achieved in the total synthesis time in comparison with the process traditionally employed, together with increased reproducibility thereof, permitting the standardization thereof.Type: GrantFiled: October 2, 2009Date of Patent: September 2, 2014Assignee: Laboratorios Farmacéutios Rovi, S.A.Inventors: Ivan Lopez-Belmonte Encina, Rafael Ojeda Martinez De Castilla -
Patent number: 8822674Abstract: A highly stable crystal of (1S)-1,5-anhydro-1-[5-(4-{(1E)-4-[(1-{[2-(dimethylamino)ethyl]amino}-2-methyl-1-oxopropan-2-yl)amino]-3,3-dimethyl-4-oxobut-1-en-1-yl}benzyl)-2-methoxy-4-(propan-2-yl)phenyl]-D-glucitol, and a process for producing the crystal are provided. Specifically, an ethanolate having the following physical properties, and a plurality of other crystal forms transformed from the ethanolate are provided: (a) Having peaks at 2?=5.9 degrees, 17.1 degrees, 17.6 degrees and 21.5 degrees in X-ray powder diffraction (Cu—K?); (b) Showing characteristic absorption bands at 3538 cm?1, 3357 cm?1, 2964 cm?1, 1673 cm?1, 1634 cm?1 and 1505 cm?1 in an infrared absorption spectrum; and (c) Having a melting point in a vicinity of 111° C.Type: GrantFiled: August 19, 2011Date of Patent: September 2, 2014Assignee: Taisho Pharmaceutical Co., LtdInventors: Yoshihiro Kimura, Koreaki Imura, Naoto Osaki, Ayumi Matsushima
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Publication number: 20140243283Abstract: The present invention relates to compounds useful for the treatment or prevention of bacteria infections. These compounds have formula I: The invention also provides pharmaceutically acceptable compositions containing the compounds and methods of using the compositions in the treatment of bacteria infections. Finally, the invention provides processes for making compounds of the invention.Type: ApplicationFiled: December 18, 2013Publication date: August 28, 2014Applicant: Vertex Pharmaceuticals IncorporatedInventors: Yeeman K. Ramtohul, Sanjoy Kumar Das, Caroline Cadilhac, Thumkunta Jagadeeswar Reddy, Louis Vaillancourt, Michel Gallant, Bingcan Liu, Evelyne Dietrich, Frederic Vallee, Julien Martel, Carl Poisson
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Patent number: 8802841Abstract: A 1,2-dideoxy-1,2-diamino oligosaccharide or polysaccharide in its free base, salt or metal-complex form as shown in General Formula 1 and derivative thereof is described. R1, R2 and R3 are each independently selected from the group consisting of H and a carbohydrate moiety, with the proviso that at least one of the groups R1, R2 or R3 is a carbohydrate moiety; R4 is selected from the group consisting of: H, optionally substituted C1-20-alkyl, optionally substituted heteroalkyl, optionally substituted C2-20-alkenyl, optionally substituted C2-20-alkynyl, optionally substituted C3-10-cycloalkyl, optionally substituted heterocyclyl, optionally substituted aryl, and optionally substituted heteroaryl.Type: GrantFiled: November 3, 2008Date of Patent: August 12, 2014Assignee: Glycom A/SInventors: Gyula Dekany, István Bajza, Marie Bøjstrup, Károly Ágoston, Lars Kröger, Ignacio Figueroa Pérez, Christoph H. Röhrig, Paulo Vital, Erzsébet Czinege
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Patent number: 8742094Abstract: The invention relates to a method for producing phosphate-bridged nucleoside conjugates. In the method, a cyclosaligenyl nucleotide is produced first, to which a linker is added, which is used to perform the immobilization on a solid phase. A subsequent reaction with corresponding nucleophiles results in the desired phosphate-bridged nucleoside conjugates, which can then again be cleaved from the solid phase-bound linker.Type: GrantFiled: May 6, 2010Date of Patent: June 3, 2014Assignee: Universitaet HamburgInventors: Chris Meier, Viktoria Caroline Tonn
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Patent number: 8735571Abstract: A composition of exceptionally dense chitosan and a novel method for producing the dense chitosan structure have been described. The novel production method employs coincident compression and vacuum on a neutralized chitosan polymer that results in an exceptionally dense chitosan film or membrane material. The dense chitosan film or membrane composition possesses multiple physical and clinically appealing qualities for a variety of medical applications on or in animals, mammals, or humans.Type: GrantFiled: December 22, 2011Date of Patent: May 27, 2014Assignee: Agenta Biotechnologies, Inc.Inventors: Arthur A. DeCarlo, April Ellis, Thomas P. Dooley, Maria Belousova
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Patent number: 8729185Abstract: Provided is a method for producing a 2-cyanoethyl group-containing organic compound having a high ratio of replacement by cyanoethyl groups and a high dielectric constant. More specifically, provided is a method for producing a 2-cyanoethyl group-containing organic compound comprising a step of reacting acrylonitrile with a hydroxyl group-containing organic compound in the presence of a quaternary ammonium salt as a catalyst through a Michael addition.Type: GrantFiled: March 27, 2012Date of Patent: May 20, 2014Assignees: Shin-Etsu Chemical Co., Ltd., Matsugaki Chemical Industries Co., Ltd.Inventors: Ikuo Fukui, Kazuhisa Hayakawa, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
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Patent number: 8703923Abstract: Processes for the synthesis of the Factor Xa anticoagulent Fondaparinux, and related compounds are described. Also described are protected pentasaccharide intermediates as well as efficient and scalable processes for the industrial scale production of Fondaparinux sodium by conversion of the protected pentasaccharide intermediates via a sequence of deprotection and sulfonation reactions.Type: GrantFiled: September 14, 2012Date of Patent: April 22, 2014Assignee: Reliable Biopharmaceutical CorporationInventors: Sourena Nadji, James T. Smoot, Joseph A. Vanartsdalen
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Patent number: 8691957Abstract: The present invention is provides a crosslinked hyaluronan powder excellent in swellability in water and a method for simply producing the same. A method for producing the swellable crosslinked hyaluronan powder is characterized by comprising mixing a crosslinking agent with a hyaluronan powder in a state dispersed in a liquid medium containing a monovalent alcohol having 1 to 4 carbon atoms and a solubility of the hyaluronan powder of less than 0.1 g/L to cause a crosslinking reaction. Also, the swellable crosslinked hyaluronan powder produced by the method has a swelling ratio in water of 500% or more.Type: GrantFiled: September 26, 2008Date of Patent: April 8, 2014Assignee: Shiseido Company, Ltd.Inventor: Tetsunori Matsumoto
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Patent number: 8691973Abstract: Provided are a method of producing a porous chitosan scaffold, the method including: providing an aqueous acidic solution having chitosan and a solvent which does not dissolve the chitosan; and freeze-drying the aqueous acidic solution, wherein the solvent is selected from the group consisting of a C3-C8 aliphatic alcohol having one hydroxy group, ethylene glycol monoethylether, ethylene glycol monobutylether, dioxane, tetrahydrofuran, dimethylcarbonate, acetone and acetonitrile, and a chitosan scaffold produced using the method.Type: GrantFiled: February 21, 2007Date of Patent: April 8, 2014Assignee: Korea Institute of Radiological & Medical SciencesInventors: Chun-Ho Kim, Seung-Jae Lee, Jin-Ik Lim, Youngsook Son
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Patent number: 8664196Abstract: The present invention provides a shark-like chondroitin sulphate and a process for the preparation thereof. In particular, the present invention relates to a shark-like chondroitin sulphate, having a very low amount of 4-sulphate, a high charge density and a biological activity comparable to natural chondroitin sulphates. The invention also relates to a process for the preparation of said shark-like chondroitin sulphate affording substantially higher productivities and better reproducibility of product quality. The shark-like chondroitin sulphate of the invention shows a high molecular mass and its in vitro biological and anti-inflammatory effectiveness has been shown to be comparable to that of natural products making this polysaccharide potentially useful as a drug in pharmaceutical preparations and nutraceuticals.Type: GrantFiled: May 20, 2011Date of Patent: March 4, 2014Assignee: Gnosis S.p.A.Inventors: Ermanno Valoti, Niccolò Miraglia, Davide Bianchi, Marco Valetti, Paola Bazza
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Publication number: 20140045207Abstract: Provided are modified cycloalkyne compounds; and methods of use of such compounds in modifying biomolecules. Embodiments include a cycloaddition reaction that can be carried out under physiological conditions. The cycloaddition reaction involves reacting a modified cycloalkyne with an azide moiety on a target biomolecule, generating a covalently modified biomolecule. The selectivity of the reaction and its compatibility with aqueous environments provide for its application in vivo and in vitro.Type: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Applicant: The Regents of the University of CaliforniaInventors: John C. Jewett, Carolyn R. Bertozzi, Ellen May Sletten, Chelsea G. Gordon
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Patent number: 8642756Abstract: Disclosed herein are nucleoside phosphoramidates and their use as agents for treating viral diseases. These compounds are inhibitors of RNA-dependent 5 RNA viral replication and are useful as inhibitors of HCV NS5B polymerase, as inhibitors of HCV replication and for treatment of hepatitis C infection in mammals.Type: GrantFiled: May 20, 2010Date of Patent: February 4, 2014Assignee: Gilead Pharmasset LLCInventors: Bruce Ross, Michael Joseph Sofia, Ganapati Reddy Pamulapati, Suguna Rachakonda, Hai-Ren Zhang, Byoung-Kwon Chun, Peiyuan Wang
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Patent number: 8629266Abstract: Starch-based dextrin adhesive additives and methods of preparation are described. Adhesives containing the additive exhibit antimicrobial properties and increased water solubility. The additive contains at least one sugar unit, at least one polyphenol side chain, and at least one Frechet-type poly(aryl ether)dendron.Type: GrantFiled: October 12, 2012Date of Patent: January 14, 2014Assignee: Empire Technology Development LLCInventor: Glen Leon Brizius
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Patent number: 8629265Abstract: The invention relates to a method for producing phosphate-bridged nucleoside conjugates. In the method a nucleophile is first dissolved in a non-aqueous solvent and dried, and a cyclosaligenyl phosphate compound is subsequently added to the solution.Type: GrantFiled: August 6, 2009Date of Patent: January 14, 2014Assignee: Universitaet HamburgInventors: Chris Meier, Saskia Wolf, Svenja Warnecke
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Publication number: 20130324464Abstract: Disclosed are an aryl glycoside compound as represented by formula I or formular I?, a pharmaceutically acceptable salt thereof, optical isomer thereof or a prodrug thereof. The present invention relates to a method of preparing said aryl glycoside compound and the use thereof The aryl glycoside compound of the present invention has an excellent ability on inhibit SGLT activity, especially SGLT2 activity, and is diabetes-fighting medicine with great potential.Type: ApplicationFiled: February 17, 2012Publication date: December 5, 2013Applicants: SHANGHAI CHEMPARTNER CO., LTD, SHANGHAI YINGLI SCIENCE AND TECHNOLOGY CO., LTDInventors: Zusheng Xu, Su Qian
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Patent number: 8586729Abstract: A method for producing a ?-enriched protected decitabine comprising: a) coupling a protected 2-deoxy-ribofuranose with a protected 5-azacytosine in the presence of a catalyst to form a reaction mixture comprising the protected decitabine of formula I; and b) quenching the reaction mixture of step a) with a base. The ?-enriched protected decitabine so made may be deprotected to produce a decitabine product in a high yield and purity.Type: GrantFiled: October 2, 2009Date of Patent: November 19, 2013Assignee: Scinopharm Taiwan Ltd.Inventors: Julian Paul Henschke, Xiaoheng Zhang, Jianbo Yu, Kun Hu, Lijun Mei
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Patent number: 8586550Abstract: The present invention relates to a novel compound with thiazole ring having an inhibitory activity against sodium-dependent glucose cotransporter 2 (SGLT2) being present in the intestine and kidney, and a pharmaceutical composition comprising the same as an active ingredient, which is useful for preventing or treating metabolic disorders, particularly diabetes.Type: GrantFiled: June 10, 2011Date of Patent: November 19, 2013Assignee: Green Cross CorporationInventors: Jinhwa Lee, Jeongmin Kim, Suk Ho Lee, Junwon Lee, Kwang-Seop Song, Eun-Jung Park, Min Ju Kim, Hee Jeong Seo, Sung-Han Lee, Eun Jung Son, Jong Yup Kim, Suk Youn Kang, Younggyu Kong
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Patent number: 8575332Abstract: The present invention provides long-acting sustained-release formulations of drugs such as proteins or peptides, which are injectable, completely biodegradable and safe, as well as ensuring efficient encapsulation of the drugs such as proteins or peptides without inhibiting their biological activity. It is possible to achieve injectable sustained-release formulations that ensure efficient encapsulation and long-term sustained release of drugs such as proteins or peptides while retaining their biological activity, when a solution containing a drug and a polysaccharide derivative such as hyaluronic acid having a crosslinkable functional group(s) or a salt thereof is dehydrated in microparticulate form starting from a dilute state, where crosslinking proceeds slowly, to reach a concentration which facilitates crosslinking, to thereby cause crosslinking reaction during concentration, so that the drug is encapsulated into the crosslinked polysaccharide to give drug-carrying microparticles.Type: GrantFiled: November 15, 2004Date of Patent: November 5, 2013Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Sei Kwang Hahn, Tsuyoshi Shimoboji
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Patent number: 8569263Abstract: A method of producing silane-modified cationized cellulose that has excellent aqueous dispersibility, including: a step (1) of cationizing water-soluble cellulose ether in a presence of alkali in a mixed solvent of a water-compatible organic solvent to obtain slurry comprising cationized cellulose; a step (2) of adding acid to said slurry and neutralizing said alkali; a step (3) of reacting said cationized cellulose obtained after said neutralization with an aminosilane compound and a step (4) of drying the obtained slurry, wherein: drying is conducted in step (4) at 115-160° C. until weight loss on drying is 5% by weight or less, or there is also including a step (5) of adding a water-compatible organic solvent or a mixed solvent of a water-compatible organic solvent and water to the cationized cellulose after the neutralization so that water content in a whole solvent that contacts the cationized cellulose is 10% by mass or less.Type: GrantFiled: August 22, 2008Date of Patent: October 29, 2013Assignee: LION CorporationInventors: Youichirou Kohno, Yoko Osako, Atsushi Ito
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Patent number: 8563532Abstract: A process for the crosslinking of at least one polymer selected from polysaccharides and derivatives thereof, which is carried out in an aqueous solvent by the action of an effective and non-excessive amount of at least one crosslinking agent, characterized in that it is carried out on a mixture containing at least one low-molecular weight polymer and at least one high-molecular weight polymer. A process for the preparation of an injectable monophase hydrogel of at least one crosslinked polymer selected from polysaccharides and derivatives thereof. Crosslinked polymers and injectable monophase hydrogels respectively obtainable by each of said processes.Type: GrantFiled: August 3, 2012Date of Patent: October 22, 2013Assignee: Allergan Industrie SASInventor: Pierre F. Lebreton
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Patent number: 8563702Abstract: There are provided composite fibers of alginate and chitosan. Also provided are fiber materials methods of producing composite fibers or films and composite films. In one embodiment there is provided a composite fiber of alginate and chitosan suitable for use in wound management products, wherein chitosan polymer is bonded to alginate polymer along the length of the fiber.Type: GrantFiled: February 15, 2007Date of Patent: October 22, 2013Assignee: The University of Bolton Education CorporationInventors: Mohsen Miraftab, Gillian Mary Smart
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Patent number: 8552164Abstract: The invention relates to a novel method for production of nanofibrillar chitin, sustainable from an industrial manufacturing standpoint and suitable for producing chitin nanofibrils having improved properties and free from less crystalline components. The invention also relates to novel chitin nanofibrils obtained with said method and characterized by an increased dispersibility in aqueous media. The invention further relates to uses of nanofibrils in pastes and aqueous gels useful for topical on-skin application, to the manufacturing of materials of biomedical interest, as well as to the deposition of chitin nanofibrils on coating surfaces or the incorporation of the same inside of items like, e.g., fibers and fabrics of any Origin, natural as well as synthetic or mixed ones.Type: GrantFiled: November 23, 2006Date of Patent: October 8, 2013Assignee: Mavi Sud S.r.l.Inventors: Pierfrancesco Morganti, Corrado Muzzarelli
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Patent number: 8536317Abstract: A process for producing a polysaccharide sponge comprises the steps of (A) freezing a photoreactive polysaccharide solution, and (B) irradiating the frozen photoreactive polysaccharide solution with light to crosslink the photoreactive polysaccharide, thereby obtaining the polysaccharide sponge. The process includes simplified steps requiring no removal of solvent, and has such an advantage that impurities are easily removed therefrom.Type: GrantFiled: December 29, 2010Date of Patent: September 17, 2013Assignee: Seikagaku CorporationInventor: Tomoya Sato
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Mixed butyric-formic esters of acid polysaccharides, and their preparation and use as skin cosmetics
Patent number: 8530450Abstract: Disclosed are acid polysaccharides characterized by the concomitant presence of alcohol groups esterified with butyric and formic acids.Type: GrantFiled: November 20, 2008Date of Patent: September 10, 2013Assignee: Sigea S.R.L.Inventors: Marco Bosco, Luca Stucchi, Rita Gianni, Antonia Trevisan -
Patent number: 8524885Abstract: Disclosed are chemically modified hyaluronic acid (HA) derivatives containing hydrazido groups directly linked to the glucuronic acid residues of HA. Said hydrazido groups are used to obtain crosslinked and labeled HA derivatives. The invention further relates to methods of preparation of said HA derivatives.Type: GrantFiled: March 6, 2007Date of Patent: September 3, 2013Assignees: Prochon Biotech Ltd., Bio-Technology General (Israel) Ltd.Inventors: Boaz Amit, Avraham Wortzel, Avner Yayon
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Process for the preparation of N-acyl-(epi)K5-amine-O-sulfate-derivatives and products thus obtained
Patent number: 8513407Abstract: A new method is described for the oversulfation of (epi)K5-N-sulfates to obtain (epi)K5-amine-O-oversulfates at extremely high degree of sulfation and for the transformation of these intermediates into new N-acyl-(epi)K5-amine-O-oversulfates basically free of activity on the coagulation parameters and useful in the cosmetic or pharmaceutical field. Also described are pharmaceutical compositions containing, as one of their active ingredients, an (epi)K5-amine-O-oversulfate.Type: GrantFiled: May 13, 2008Date of Patent: August 20, 2013Assignee: GLYCORES 2000 S.r.l.Inventors: Pasqua A. Oreste, Giorgio Zoppetti -
Publication number: 20130171180Abstract: The present invention relates to compounds of formula (I): or a pharmaceutically acceptable salt thereof, a tautomer, a stereoisomer or a mixture of stereoisomers in any proportion, in particular a mixture of enantiomers, and particularly a racemate mixture, as well as to their process of preparation, their use in the peptide synthesis, said peptide and the use of said peptide.Type: ApplicationFiled: December 22, 2011Publication date: July 4, 2013Applicant: TFCHEMInventors: Geraldine Deliencourt-Godefroy, Hyacinthe Fillon, Thibaut Martin
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Patent number: 8445670Abstract: A method of synthesizing stereochemically defined iminocyclitol comprises replacing an intraring oxygen in a cyclic sugar by an intraring imine to form an iminocyclitol, wherein said iminocyclitol has a defined stereochemical configuration different from a stereochemical configuration of the cyclic sugar. The invention also provides combinatorial libraries of iminocyclitol compounds, allowing for diverse C1 and N-substitution. In addition, provided are methods of treating viral infections with iminocyclitols compounds.Type: GrantFiled: March 17, 2009Date of Patent: May 21, 2013Assignee: United Therapeutics CorporationInventors: Robert M. Moriarty, Carmen Mitan, Kenneth R. Phares
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Patent number: 8420790Abstract: The present invention relates to a process for the synthesis of the Factor Xa anticoagulent Fondaparinux and related compounds. The invention relates, in addition, to efficient and scalable processes for the synthesis of various intermediates useful in the synthesis of Fondaparinux and related compounds.Type: GrantFiled: October 29, 2010Date of Patent: April 16, 2013Assignee: Reliable Biopharmaceutical CorporationInventors: Payal Parth Patel, Chun Ma, Kevin K. Ohrr, Sourena Nadji