Chalcogen Bonded Directly To A Ring Carbon Of The 1,3-diazole Ring Patents (Class 546/273.7)
  • Patent number: 7745466
    Abstract: The present invention relates to a novel form of the (?)-enantiomer of 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole, i.e. S-omeprazole. More specifically, it relates to a novel form of the magnesium salt of the S-enantiomer of omeprazole trihydrate. The present invention also relates to processes for preparing such a form of the magnesium salt of S-omeprazole and pharmaceutical compositions containing it. Furthermore, the present invention also relates to new intermediates used in the process.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: June 29, 2010
    Assignee: AstraZeneca AB
    Inventors: Hanna Cotton, Anders Kronström, Anders Mattson, Eva Möller
  • Publication number: 20100160639
    Abstract: A process for preparation of optically pure or optically enriched enantiomers of sulphoxide compounds of formula (I), such as omeprazole and structurally related compounds, as well as their salts and hydrates.
    Type: Application
    Filed: October 5, 2006
    Publication date: June 24, 2010
    Applicant: Lupin Limited
    Inventors: Girij Pal Singh, Himanshu Madhav Godbole, Narotham Maddireddy, Suhas Ganpat Tambe, Sagar Purushottam Nehate, Harischandra Sambhaji Jadhav
  • Publication number: 20100160380
    Abstract: Therapeutic salt compositions and methods are disclosed herein.
    Type: Application
    Filed: July 27, 2009
    Publication date: June 24, 2010
    Inventors: Mark P. Rubino, Gyorgy F. Ambrus
  • Publication number: 20100152125
    Abstract: One aspect of the invention relates to a method of treating or preventing a neurodegenerative disease, comprising the step of administering to a patient in need thereof a therapeutically effective amount of an inhibitor of the formation of advanced glycation end products. Another aspect of the invention relates to a proteasome activity-based screening assay to select compounds which may be useful for treating or preventing a neurodegenerative disease, and the materials used therein. Yet another aspect of the invention relates to molecules, and methods of use thereof, which bind at or adjacent to SOD-I Trp32, including molecules that bind in a site adjacent to SOD-I Trp32 whether or not it is oxidized, for treating or preventing neurodegenerative disease.
    Type: Application
    Filed: March 20, 2008
    Publication date: June 17, 2010
    Applicant: Brandeis University
    Inventors: Jeffrey N. Agar, Gregory A. Petsko, Dagmar Ringe, Walter R.P. Novak
  • Patent number: 7737282
    Abstract: A novel crystal of (R)-2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole or a salt thereof of the present invention is useful for an excellent antiulcer agent.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: June 15, 2010
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Akira Fujishima, Isao Aoki, Keiji Kamiyama
  • Publication number: 20100145057
    Abstract: The present invention describes novel prodrugs of formula (I) or their salts, process of preparation and uses thereof.
    Type: Application
    Filed: March 14, 2008
    Publication date: June 10, 2010
    Applicant: SUN PHARMA ADVANCED RESEARCH COMPANY LTD.
    Inventors: Rajamannar Thennati, Biswajit Samanta, Ranjan Kumar Pal, Srinivasu Kilaru, Jignesh Jivani, Savajibhai Anil Kumbhani, Jay Prakashchandra Adhyapak
  • Publication number: 20100145058
    Abstract: The invention relates to crystalline barium salt of (S)-omeprazole, which is (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole. The invention also relates to processes for preparing crystalline barium salt of (S)-omeprazole and pharmaceutical compositions that include the crystalline barium salt of (S)-omeprazole so prepared.
    Type: Application
    Filed: February 9, 2010
    Publication date: June 10, 2010
    Inventors: Yatendra KUMAR, Mahavir Singh Khanna, Mohan Prasad
  • Publication number: 20100137607
    Abstract: The invention relates to crystalline barium salt of (S)-omeprazole, which is (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole. The invention also relates to processes for preparing crystalline barium salt of (S)-omeprazole and pharmaceutical compositions that include the crystalline barium salt of (S)-omeprazole so prepared.
    Type: Application
    Filed: February 9, 2010
    Publication date: June 3, 2010
    Inventors: Yatendra KUMAR, Mahavir Singh Khanna, Mohan Prasad
  • Publication number: 20100125143
    Abstract: Process for the preparation of (R)-2-[[[3-methyl-4(2,2,2-trifluoroethoxy)-2-piridyl]methyl]sulfinyl]benzimidazole (Dexlansoprazole) and new intermediates useful in its preparation.
    Type: Application
    Filed: November 17, 2009
    Publication date: May 20, 2010
    Applicant: DIPHARMA FRANCIS S.r.I.
    Inventors: Emanuele ATTOLINO, Vittorio Lucchini
  • Publication number: 20100125142
    Abstract: An improved process for the preparation of (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole of Formula I, (I) with high enantiomeric excess from racemic mixture.
    Type: Application
    Filed: May 30, 2008
    Publication date: May 20, 2010
    Inventors: Shankar Reddy Budidet, Brajesh Kumar Sinha, Somappa Somannavar Yallappa, Senthil Kumar Natarajan, Ramesh Dandala, Sivakumaran Meenakshisunderam
  • Publication number: 20100113527
    Abstract: Provided are crystalline forms of dexLansoprazole, as well as processes for the preparation thereof.
    Type: Application
    Filed: September 30, 2009
    Publication date: May 6, 2010
    Inventors: Jacob RENDELL, Ariel MITTELMAN, Rinat MOSHKOVITS-KAPTSAN, Sergei FINE, Ana KWOKAL, Tamas KOLTAI
  • Publication number: 20100113524
    Abstract: The compounds of the formulas (I), (II), (III) and (IV), where the symbols are as defined in the specification are prodrugs of proton pump inhibitors. The R4 group includes at least one acidic group or its pharmaceutically acceptable salt, and the compound having the R4 group have improved aqueous solubility, stability in plasma and improved bioavailability.
    Type: Application
    Filed: September 15, 2007
    Publication date: May 6, 2010
    Inventors: Michael E. Garst, George Sachs, Jai Moo Shin
  • Publication number: 20100093804
    Abstract: The present invention relates to a novel and stable crystalline polymorph of lansoprazole, a process for its preparation and to a pharmaceutical composition comprising it. Thus, for example, lansoprazole crude is dissolved in methanol at 20-30° C. followed by stirring and the solution is cooled to 0-10° C. The resulting solution is stirred for 1 hour to 1 hour 30 minutes at 0-10° C., the solid is filtered and then dried to give lansoprazole crystalline form III.
    Type: Application
    Filed: December 7, 2006
    Publication date: April 15, 2010
    Applicant: HETERO DRUGS LIMITED
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy
  • Publication number: 20100092426
    Abstract: Inhibitors of RSV replication of formula (I) the addition salts and stereochemically isomeric forms thereof, wherein Q is hydrogen, C1-6alkyl optionally substituted with a heterocycle or Q is C1-6alkyl substituted with both —OR4 and a heterocycle; wherein said heterocycle is oxazolidine, thiazolidine, 1-oxo-thiazolidine, 1,1-dioxothiazolidine, morpholinyl, thiomorpholinyl, 1-oxo-thiomorpholinyl, 1,1-dioxothiomorpholinyl, hexahydrooxazepine, hexahydro-thiazepine, 1-oxo-hexahydrothiazepine, 1,1-dioxo-hexahydrothiazepine, pyrrolidine, piperidine, homopiperidine, piperazine; which heterocyle may be substituted with 1-2 substituents; each Alk is C1-6alkanediyl; R1 is Ar2 or optionally substituted piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl, pyridyl, pyrazinyl, pyridazinyl, pyrimidinyl, furanyl, tetrahydro-furanyl, thienyl, pyrrolyl, thiazolyl, oxazolyl, imidazolyl, isothiazolyl, pyrazolyl, isoxazolyl, oxadiazolyl, quinolinyl, quinoxalinyl, benzofuranyl, benzothienyl, benzimidazolyl, benzoxazolyl, benzth
    Type: Application
    Filed: June 20, 2006
    Publication date: April 15, 2010
    Inventors: Jean-Francois Bonfanti, Philippe Muller, Jérôme Michel Claude Fortin, Frédéric Marc Maurice Doublet
  • Publication number: 20100087652
    Abstract: The present invention discloses a process for preparing a magnesium salt of S-omeprazole. The S-omeprazole salt preferably has a water content below about 4.8% by weight, a magnesium content of about 3.4-4.0% by weight, calculated on the weight of anhydrous, solvent free S-omeprazole magnesium, and has an optical purity of at least about 85% entantiomeric excess (“e.e.”). In addition, the present invention provides a magnesium salt of S-omeprazole which is substantially free of neutral omeprazole, meaning that the product contains less than about 3% by weight of a sum of neutral S-omeprazole and neutral omeprazole. Moreover, the S-omeprazole magnesium according to the invention preferably has assay of related substances and degradation products of less than about 0.1% by weight as determined by high performance liquid chromatography (HPLC).
    Type: Application
    Filed: April 1, 2009
    Publication date: April 8, 2010
    Applicant: LEK PHARMACEUTICALS D.D.
    Inventors: Lidija Vranicar Savanovic, Dejan Mandic, Renata Toplak Casar
  • Publication number: 20100081643
    Abstract: Novel compounds of the structural formula (I) are activators of AMP-protein kinase and are useful in the treatment, prevention and suppression of diseases mediated by the AMPK-activated protein kinase. The compounds of the present invention are useful in the treatment of Type 2 diabetes, hyperglycemia, metabolic syndrome, obesity, hypercholesterolemia, and hypertension.
    Type: Application
    Filed: September 21, 2009
    Publication date: April 1, 2010
    Inventors: BRETT C. BOOKSER, Qun Dang, Tony S. Gibson, Hongjian Jiang, De Michael Chung, Jianming Bao, Jinlong Jiang, Andy Kassick, Ahmet Kekec, Ping Lan, Huagang Lu, Gergely M. Makara, F. Anthony Romero, Iyassu Sebhat, David Wilson, Dariusz Wodka
  • Publication number: 20100076025
    Abstract: The present invention relates to a process for removing an organic solvent from a salt of omeprazole, in particular a magnesium salt of omeprazole, a composition comprising a salt of omeprazole, in particular a magnesium salt of omeprazole obtainable by such a process, and pharmaceutical compositions comprising said composition or a salt of omeprazole, in particular a magnesium salt of omeprazole, in particular where omeprazole is S-omeprazole.
    Type: Application
    Filed: January 9, 2008
    Publication date: March 25, 2010
    Applicant: LEK PHARMACEUTICALS D.D.
    Inventors: Dejan Mandic, Renata Toplak Casar
  • Patent number: 7683080
    Abstract: The present invention provides a stable 2-(2-pyridylmethyl) sulfinyl-1H-benzimidazole (lansoprazole) comprising either greater than 500 ppm and not more than about 3,000 ppm water or greater than 200 ppm and not more than about 5,000 ppm alcohol, or both. The present invention provides a method of preparing a stable lansoprozole as well as a pharmaceutical composition containing same. The present invention further provides a method of purifying lansoprazole that is substantially free of sulfone and sulfide derivatives.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: March 23, 2010
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Anita Liberman, Claude Singer, Irena Veinberg
  • Patent number: 7683178
    Abstract: A process for the manufacture of omeprazole or esomeprazole from pyrmethyl alcohol via pyrmethyl chloride and pyrmetazole characterized in that the whole reaction sequence is carried out without any isolation or purification of intermediates. Further, the reaction is carried out in a solvent system common for the whole reaction sequence and inert to the reactants formed during the process and used in the process and comprises a water immiscible organic solvent and a specified amount of water.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: March 23, 2010
    Assignee: AstraZeneca AB
    Inventor: Anders Gustavsson
  • Patent number: 7683177
    Abstract: The present invention provides a process comprising admixing a thioether with about 1.05 to about 1.6 molar equivalents of an active chlorine-containing oxidant, preferably sodium hypochlorite, and about 2.5 to about 5.0 molar equivalents of an alkali metal base; and recovering a sulfoxide that is preferably pantoprazole, lansoprazole, omeprazole, or rabeprazole. The process may further comprise contacting the sulfoxide with a source of sodium ions, preferably sodium hydroxide, to produce the sodium salt of the sulfoxide. The invention also relates to novel chlorinated derivatives of pantoprazole including 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)-chloromethyl]sulfinyl]-1H-benzimidazole and 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)-chlorohydroxymethyl]sulfinyl]-1H-benzimidazole and processes for making them. The invention also relates to processes of quantifying and identifying a compound other than pantoprazole in a mixture of pantoprazole and at least one other compound.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: March 23, 2010
    Assignee: Teva Pharmaceutical Industries Ltd
    Inventors: Viviana Braude, Nina Finkelstein, Kobi Chen, Gideon Pilarsky, Anita Liberman, Claude Singer, Yuriy Raizi
  • Patent number: 7678816
    Abstract: The present invention provides a stable 2-(2-pyridylmethyl)sulfinyl-1H-benzimidazole (lansoprazole) and a method for stabilizing lansoprazole by use of a weakly basic material. The present invention also provides a method for the preparation of a stable lansoprazole.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: March 16, 2010
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Claude Singer, Anita Liberman, Irena Veinberg
  • Publication number: 20100056515
    Abstract: There is provided a compound of the formula (I): wherein R1 is an optionally substituted C1-10 alkyl; R2 is H, or a C1-6 alkyl which may be substituted with 1 to 3 substituents; R3 is a 5- or 6-membered aromatic group which may be substituted with 1 to 5 substituents, wherein the 5- or 6-membered aromatic group may be fused with a 5- or 6-membered ring which may be substituted with 1 to 3 C1-6 alkyls; R4 is a hydrogen, a halogen, a hydroxy, a cyano, a C1-6 alkyl or a C1-6 alkoxy; Z is —O—, —S—, —SO—, —SO2—, or —NR5— wherein R5 is a hydrogen or a C1-6 alkyl; or a salt thereof or a prodrug thereof, which have CRF receptor antagonist activity and use thereof.
    Type: Application
    Filed: October 24, 2007
    Publication date: March 4, 2010
    Inventors: Kazuyoshi Aso, Michiyo Mochizuki, Takuto Kojima, Katsumi Kobayashi, Scott Alan Pratt, Albert Charles Gyorkos, Christopher Peter Corrette, Suk Young Cho
  • Patent number: 7662968
    Abstract: The invention relates to a process for preparing lansoprazole. It is also directed to lansoprazole having a specific surface area and a pharmaceutical composition comprising lansoprazole.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: February 16, 2010
    Assignee: KRKA tovarna zdravil, d.d..
    Inventors: Berta Kotar-Jordan, Franc Vre{hacek over (c)}er, Mojca {hacek over (S)}egula {hacek over (Z)}akelj, Gregor Ritlop
  • Publication number: 20100022778
    Abstract: It is an object of the present invention to provide a process for the production on an industrial scale of a compound (1) or a salt thereof. There is provided a process for the production of compound (1) represented by the formula or a salt thereof: (wherein R1 and R3 independently represents a hydrogen atom or a methyl group), the process comprising the steps of: (a) reacting together a compound (3T) represented by the formula: (wherein X1 represents a leaving group, and R1 and R3 are defined as above) and (2,2-dimethyl-1,3-dioxan-5-yl)methanol represented by the formula or a salt thereof: so as to produce a compound (2T) represented by the formula (wherein R1 and R3 are defined as above); and (b) reacting the compound represented by above formula (2T) with an oxidizing agent.
    Type: Application
    Filed: October 11, 2007
    Publication date: January 28, 2010
    Inventors: Atsushi Kamada, Daisuke Iida, Hiroki Terauchi
  • Publication number: 20100022779
    Abstract: The invention relates to compounds of formula 1 and formula 10 and to compositions comprising these compounds and methods of treating gastrointestinal disorders by administering these compounds.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Applicant: NYCOMED GMBH
    Inventors: Bernhard Kohl, Bernd Müller, Dieter Haag, Wolfgang-Alexander Simon, Karl Zech, Michael David, Oliver Von Richter, Felix Huth
  • Publication number: 20100016606
    Abstract: A hydrate of esomeprazole magnesium in the form of an amorphous solid is provided. Methods of preparation and use of, as well as formulation containing the hydrate of esomeprazole magnesium in the form of an amorphous solid are also provided.
    Type: Application
    Filed: September 28, 2009
    Publication date: January 21, 2010
    Applicants: DR. REDDY'S LABORATORIES LIMITED, DR. REDDY'S LABORATORIES, INC.
    Inventors: Manne Satyanarayana Reddy, Muppa Kishore Kumar, Koilkonda Purandhar, Keshaboina Sreenath
  • Publication number: 20100016605
    Abstract: A one-pot process for the preparation of pantoprazole sodium by reacting 2-chloro methyl 3,4-dimethoxy pyridine hydrochloride with 2-mercapto-5-difluoromethoxy benzimidazole in an organic solvent system in presence of a phase transfer catalyst and further treating with aqueous sodium hypohalite solution comprising sodium hydroxide to obtain pantoprazole sodium in high yield and purity. The process for conversion of pantoprazole sodium to pantoprazole sodium sesquihydrate and also pantoprazole sodium monohydrate are also disclosed herein.
    Type: Application
    Filed: December 15, 2005
    Publication date: January 21, 2010
    Applicant: CIPLA LIMITED
    Inventors: Rajendra Narayanrao Kankan, Srinivas Laxminarayan Pathi
  • Publication number: 20100016370
    Abstract: There is provided a process for preparing purified esomeprazole magnesium, comprising the steps of: providing esomeprazole magnesium; contacting said esomeprazole magnesium with a non-solvent comprising an aqueous component up to a maximum content defined by water saturation in the non-solvent; and recovering purified esomeprazole magnesium formed from the contacting step. The process is particularly suitable to obtain esomeprazole magnesium dihydrate, especially form A. The esomeprazole magnesium obtained is remarkably pure, stable and is resistant to form interchangeability.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 21, 2010
    Applicant: LEK PHARMACEUTICALS D.D.
    Inventor: Renata Toplak Casar
  • Publication number: 20100015717
    Abstract: The present invention relates generally to novel protein modification reagents for fractionation and quantitative (differential) profiling of proteins in a complex mixture. The reagents react with amino acids or other protein components or structures and function as mass tags. The present invention provides methods of making the protein modification reagents and methods of using the protein modification reagents for quantitative analysis of proteins.
    Type: Application
    Filed: February 23, 2009
    Publication date: January 21, 2010
    Applicant: PPD BIOMARKER DISCOVERY SCIENCES LLC
    Inventors: Rajendra Singh, Haihong Zhou
  • Publication number: 20100010047
    Abstract: The invention relates to compounds of formula 1 and formula 10 and to compositions comprising these compounds and methods of treating gastrointestinal disorders by administering these compounds.
    Type: Application
    Filed: August 31, 2009
    Publication date: January 14, 2010
    Inventors: Bernhard Kohl, Bernd MÜLLER, Dieter Haag, Wolfgang-Alexander Simon, Karl Zech, Michael David, Oliver Von Richter, Felix Huth
  • Publication number: 20100010230
    Abstract: The present invention relates to an improved process for the preparation of Lansoprazole of formula (I). More particularly, the present invention relates to a method for the purification of crude Lansoprazole in a solvent in presence of an alkali salt of an organic acid or in presence of an organic base such as piperidine or imidazole.
    Type: Application
    Filed: September 21, 2007
    Publication date: January 14, 2010
    Applicant: Orchid Chemicals & Pharmaceuticals Limited
    Inventors: Thangavel Arulmoli, Siripragada Mahender Rao, Krishna Sumanth Peraka, Ariyamuthu Sundara Selvan
  • Patent number: 7638633
    Abstract: A process for preparation of rabeprazole sodium comprising oxidation of wet or dry rabeprazole sulphide with sodium hypohalite in water or a mixture of water and water miscible solvent using alkali metal hydroxide and catalyst is disclosed herein. The present invention also discloses process for preparation of rabeprazole sulphide.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: December 29, 2009
    Assignee: Cipla Limited
    Inventors: Srinivas Laxminarayan Pathi, Rajendra Narayanrao Kankan, Dharmaraj Ramachandra Rao
  • Patent number: 7638634
    Abstract: The present invention relates to a novel amorphous form of esomeprazole hydrate, to a process for its preparation and to a pharmaceutical composition containing it. Thus, tetrahydrofuran and water are added to esomeprazole potassium salt at 25-30° C., cooled to 20° C. and then the pH is adjusted to 7.5-8.0 with acetic acid. The reaction mass is cooled to 5° C., stirred for 2 to 3 hours at 0-5° C., filtered the mass, washed with chilled mixture of water and tetrahydrofuran (2:1) and again washed with water. The wet cake is dried at 30-35° C. under vacuum to reach the moisture content to 25-30%. The solid is again dried in rotovapour at 25-30° C. under nitrogen atmosphere to give amorphous esomeprazole hydrate.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: December 29, 2009
    Assignee: Hetero Drugs Limited
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy
  • Publication number: 20090312314
    Abstract: The present invention is concerned with novel sulfonamides of formula wherein R1, R2, R3, R4, R5, Ar, Ar1, Ar2, n, o and p are as described in the description and claims. The compounds are orexin receptor antagonists that may be useful in the treatment of disorders, in which orexin pathways are involved.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 17, 2009
    Inventors: Henner Knust, Matthias Nettekoven, Emmanuel Pinard, Olivier Roche, Mark Rogers-Evans
  • Publication number: 20090306393
    Abstract: The present invention relates to an improved process for the preparation of pantoprazole free from overoxidation impurities. The process enables better control of the process and therefore the quality of the products obtained, avoiding the formation of impurities.
    Type: Application
    Filed: December 14, 2006
    Publication date: December 10, 2009
    Inventors: Blazenko Bajic, Drazen Cavuzic, Nafis Defterdarovic, Vesna Miskovic Klecar, Igor Sostaric
  • Patent number: 7629361
    Abstract: The invention relates to (?)-pantoprazole magnesium and its hydrates and to medicaments comprising these compounds.
    Type: Grant
    Filed: July 26, 2003
    Date of Patent: December 8, 2009
    Assignee: NYCOMED GmbH
    Inventors: Wolfgang Kromer, Bernd Müller, Stefan Postius, Wolfgang-Alexander Simon, Ernst Sturm, Guido Hanauer
  • Publication number: 20090298884
    Abstract: A strontium salt of esomeprazole is provided. A process for preparing a strontium salt of esomeprazole is also provided comprising reacting esomeprazole free base or a sodium, potassium or lithium salt of esomeprazole with a strontium source in one or more solvents.
    Type: Application
    Filed: May 2, 2006
    Publication date: December 3, 2009
    Applicant: GLENMARK GENERICS LTD.
    Inventors: Shekhar Bhaskar Bhirud, Nitin Sharad Chandra Pradhan, Bobba Venkata Siva Kumar, Pravin Bhalchandra Kulkarni
  • Publication number: 20090292120
    Abstract: The present invention provides a compound that has superior gastric acid secretion inhibitory action, ample long-lasting gastric acid secretion inhibitory action, and is able to maintain intragastric pH at a high level for an extended period of time, making it useful as a therapeutic or prophylactic agent for diseases or symptoms caused by gastric acid, as well as an active form of this compound (form to which the compound is converted in the body following administration thereof) in the form of a compound represented by general formula (1a) (wherein R2 represents a group represented by formula (I) or the like, and R1, R3, W1 and X? are as defined in the description).
    Type: Application
    Filed: October 11, 2007
    Publication date: November 26, 2009
    Inventors: Masato Ueda, Daisuke Iida, Sachiko Kikuchi, Masaharu Gotoda
  • Patent number: 7622588
    Abstract: The present invention provides a method for preparing a substantially pure lansoprazole containing less than about 0.2% (wt/wt) impurities including sulfone/sulfide derivatives. The present invention also provides a process for recrystallizing lansoprazole to obtain a lansoprazole containing less than about 0.1% (wt/wt) water.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: November 24, 2009
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Claude Singer, Anita Liberman, Irena Veinberg, Nina Finkelstein, Tamar Nidam
  • Publication number: 20090274755
    Abstract: The present invention is directed to a process for the catalytic oxidation of the thioether 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylthio)-1H-benzimidazole to its sulfoxide: 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl) methyl)methylsulfinyl)-1H-benzimidazole comprising: reacting the thioether with: 1) a transition metal catalyst; and, 2) an oxygen source; wherein the thioether is oxidized to a sulfoxide and wherein one of either the R and S enantiomers is formed to an enantiomeric excess.
    Type: Application
    Filed: July 7, 2009
    Publication date: November 5, 2009
    Inventors: Kenneth S. Wheelock, Louis A. Piccone
  • Patent number: 7612098
    Abstract: A hydrate of esomeprazole magnesium in the form of an amorphous solid is provided. Methods of preparation and use of, as well as formulation containing the hydrate of esomeprazole magnesium in the form of an amorphous solid are also provided.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: November 3, 2009
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Manne Satyanarayana Reddy, Muppa Kishore Kumar, Koilkonda Purandhar, Keshaboina Sreenath
  • Publication number: 20090264658
    Abstract: It is an object of the present invention to provide (1) a process for manufacturing alkali metal salts of 2-[{4-(3-methoxypropoxy)-3-methylpyridin-2-yl}methylsulfinyl]-1H-benzimidazole which are useful as gastric acid secretion inhibitors, anti-ulcer agents and other drugs and (2) salts of 2-[{4-(3-methoxypropoxy)-3-methylpyridin-2-yl}methylsulfinyl]-1H-benzimidazole with amines which are intermediates for the production of the alkali metal salts, and a process for manufacturing the same. According to the present invention, disclosed are salts represented by the following formula (I): (wherein A+ represents an isopropylammonium ion, sec-butylammonium ion or cyclopentylammonium ion).
    Type: Application
    Filed: June 24, 2009
    Publication date: October 22, 2009
    Inventors: Hiroyuki YOKOI, Masanori MIZUNO, Toyokazu HAGA
  • Patent number: 7605268
    Abstract: A process for preparation of a compound of formula (I), both as the isomeric mixture and individual isomers, wherein Q is ?CR8— or ?N—; each R1, R2, R3, R4 is independently selected from hydrogen, halogen, hydroxy; nitro; C1-C6 alkyl optionally substituted with hydroxy; alkylthio C1-C6; C1-C6 alkoxy optionally substituted with halogen or C1-C6 alkoxy; phenyl-C1-C6 alkyl; phenyl-C1-C6 alkoxy; and —N(RaRb) wherein each Ra and Rb is independently hydrogen or C1-C6 alkyl or Ra and Rb, taken together with the nitrogen atom they are linked to, form a saturated heterocyclic ring; and each R5, R6, R7, R8 is independently selected from hydrogen, halogen, hydroxy; C1-C6 alkyl optionally substituted with hydroxy; alkylthio C1-C6; C1-C6 alkoxy optionally substituted with halogen; C1-C6 alkyl-carbonyl, C1-C6 alkoxy-carbonyl, and oxazol-2-yl; comprising converting a compound of formula (IV), to said compound of formula (I), in the presence of a catalyst, if necessary in an organic solvent.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: October 20, 2009
    Assignee: Dipharma Francis s.r.l.
    Inventors: Pietro Allegrini, Marcello Rasparini, Gabriele Razzetti, Roberto Rossi, Gianpiero Ventimigla
  • Publication number: 20090258908
    Abstract: This invention provides a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 15, 2009
    Applicant: Hanmi Pharm. Co., Ltd.
    Inventors: Tae Hee HA, Hee Sook OH, Won Jeoung KIM, Chang Hee PARK, Eun Young KIM, Young Hoon KIM, Kwee Hyun SUH, Gwan Sun LEE
  • Publication number: 20090259047
    Abstract: The invention relates to crystalline barium salt of (S)-omeprazole, which is (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole. The invention also relates to processes for preparing crystalline barium salt of (S)-omeprazole and pharmaceutical compositions that include the crystalline barium salt of (S)-omeprazole so prepared.
    Type: Application
    Filed: May 15, 2009
    Publication date: October 15, 2009
    Inventors: Yatendra KUMAR, Mahavir Singh Khanna, Mohan Prasad
  • Publication number: 20090253911
    Abstract: The present invention relates to an improved method for the synthesis of the (S)- or (R)-enantiomer of omeprazole, characterized in that 2-[[(4-X-3,5-dimethylpyridin-2-yl)methyl]thio]-5-methoxy-1H-benzimidazole or 2-[[(4-X-3,5-dimethyl-1-oxidopyridin-2-yl)methyl]thio]-5-methoxy-1H-benzimidazole, wherein X is a leaving group, is oxidized into the corresponding sulphoxide which is obtained as a crystalline compound. Recrystallisation of the thus obtained sulphoxide results in a compound of enhanced chemical and optical purity, which is subsequently transformed into the (S)- or (R)-enantiomer of omeprazole.
    Type: Application
    Filed: December 5, 2008
    Publication date: October 8, 2009
    Inventors: Sverker von Unge, Christina Fregler
  • Patent number: 7598273
    Abstract: Chemical syntheses and medical uses of novel inhibitors of the gastric H+, K+-ATPase for the treatment and/or management of duodenal ulcers, heartburn, acid reflux, other conditions mediated by gastric acid secretion and/or psoriasis are described.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: October 6, 2009
    Assignee: Auspex Pharmaceuticals, Inc
    Inventors: Thomas G. Gant, Sepehr Sarshar
  • Patent number: 7579476
    Abstract: The present invention is directed to a process for the catalytic oxidation of the thioether 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylthio)-1H-benzimidazole to its sulfoxide: 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylsulfinyl)-1H-benzimidazole comprising: reacting the thioether with: 1) a transition metal catalyst; and, 2) an oxygen source; wherein the thioether is oxidized to a sulfoxide and wherein one of either the R and S enantiomers is formed to an enantiomeric excess.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: August 25, 2009
    Assignee: Praktikatalyst Pharma, LLC
    Inventors: Kenneth S. Wheelock, Louis A. Piccone
  • Publication number: 20090209592
    Abstract: Chemical syntheses and medical uses of novel inhibitors of the gastric H+, K+-ATPase for the treatment and/or management of duodenal ulcers, heartburn, acid reflux, other conditions mediated by gastric acid secretion and/or psoriasis are described.
    Type: Application
    Filed: March 27, 2009
    Publication date: August 20, 2009
    Applicant: AUSPEX PHARMACEUTICALS, INC.
    Inventors: Thomas G. Gant, Sepehr Sarshar
  • Patent number: 7576219
    Abstract: This invention provides a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: August 18, 2009
    Assignee: Hanmi Pharm. Co., Ltd
    Inventors: Tae Hee Ha, Hee Sook Oh, Won Jeoung Kim, Chang Hee Park, Eun Young Kim, Young Hoon Kim, Kwee Hyun Suh, Gwan Sun Lee