Oxygen Containing Hetero Ring (e.g., Dioxirane, Etc.) Patents (Class 549/200)
  • Patent number: 6686348
    Abstract: A compound of formula (I): wherein: R1 represents hydrogen, halogen, alkyl or alkoxy, X represents oxygen, sulphur or NR wherein R represents hydrogen or alkyl, A represents any one of the groups described in the description, their isomers and addition salts thereof with a pharmaceutically acceptable acid or base and medicinal products containing the same are useful as metalloprotease inhibitor.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: February 3, 2004
    Assignee: Les Laboratoires Servier
    Inventors: Guillaume De Nanteuil, Alain Benoist, Philippe Pastoureau, Massimo Sabatini, John Hickman, Alain Pierre, Gordon Tucker
  • Patent number: 6667410
    Abstract: The present invention provides a novel process for the conversion of &agr;,&bgr;-unsaturated ketones. This invention is an improvement over existing processes in that it operates at neutral reaction conditions that prevent the formation of side reactions and that it is a single step, which proceeds with complete selectivity and gives a yield that is approximately 30% higher than the currently used processes. An example of this process is the conversion of 16-dehydroprogesterone into 17 &agr;-hydroxyprogesterone.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: December 23, 2003
    Assignee: Board of Regents, The University of Texas System
    Inventors: Philip D. Magnus, Andrew H. Payne
  • Patent number: 6660728
    Abstract: The present invention relates to thienyl substituted acylguanidine derivatives, such as compounds of formula (I) in which R1, R2, R4, R6, A, B and D have the meanings indicated in the claims, their physiologically tolerable salts and their prodrugs. The compounds of the present invention are valuable pharmaceutical active compounds. They are vitronectin receptor antagonists and inhibitors of bone resorption by osteoclasts. They are suitable, for example, for the therapy and prophylaxis of diseases which are caused at least partially by an undesired extent of bone resorption, for example of osteoporosis. The invention furthermore relates to processes for the preparation of thienyl substituted acylguanidines, their use, in particular as active ingredients in pharmaceuticals, and pharmaceutical preparations comprising them.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: December 9, 2003
    Assignees: Aventis Pharma Deutschland GmbH, Genentech, Inc.
    Inventors: Karl-Heinz Scheunemann, Jochen Knolle, Amuschirwan Peyman, David William Will, Denis Carniato, Jean-Francois Gourvest, Thomas Gadek, Robert McDowell, Sarah Catherine Bodary, Robert Andrew Cuthbertson
  • Patent number: 6632788
    Abstract: The compound according to the formula set forth below where A is B is or A and B together form the ring structure and X, R′ and R are independently H and CH3 and m=0 or 1. and the use of the compound in creating fragrances, and scents in items such as perfumes, colognes and personal care products is disclosed.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: October 14, 2003
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Anthony T. Levorse, Jr., Anubhav P.S. Narula, Edward Mark Arruda, Charles E.J. Beck
  • Patent number: 6620841
    Abstract: A compound of the formula (I): wherein X is hydroxy, protected hydroxy or optionally substituted amino; Y is —COORA wherein RA is hydrogen or ester residue, —CONRBRC wherein RB and RC each is independently hydrogen or amide residue, optionally substituted aryl or optionally substituted heteroaryl; and A1 is optionally substituted heteroaryl; provided that a compound wherein Y and/or A1 is optionally substituted indol-3-yl is excluded, a tautomer, a prodrug, a pharmaceutically acceptable salt or a hydrate thereof has an inhibitory activity against an integrase.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: September 16, 2003
    Assignee: Shionogi & Co., Ltd.
    Inventors: Toshio Fujishita, Tomokazu Yoshinaga, Akihiko Sato
  • Publication number: 20030139610
    Abstract: The invention provides compositions and methods for isolating phenolic compounds, particularly isoflavones, from aqueous extracts of plant materials that contain such compounds.
    Type: Application
    Filed: July 23, 2002
    Publication date: July 24, 2003
    Inventors: Anil Bhagwan Khare, Brent Howard Hilbert
  • Publication number: 20030138664
    Abstract: A light emitting device material comprising a compound represented by the following formula (I): 1
    Type: Application
    Filed: December 3, 2002
    Publication date: July 24, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Kazumi Nii
  • Patent number: 6592631
    Abstract: The p-aminophenol derivative compounds of formula (I), or their physiologically compatible water-soluble salts: are useful as developer compounds in oxidation dye compositions for keratin fibers. Oxidation dye compositions for keratin fibers, including hair, and methods of dyeing hair using the p-aminophenol derivative compounds are also described.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: July 15, 2003
    Assignee: Wella AG
    Inventors: Laurent Chassot, Hans-Juergen Braun
  • Patent number: 6586591
    Abstract: A process for the formation of compounds of Formula VI: comprising hydrolyzing a compound corresponding to Formula VII: wherein —A—A—, —B—B—, R3, R8 and R9 are as defined in the specification.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: July 1, 2003
    Assignee: G.D. Searle & Co.
    Inventors: John S. Ng, Ping T. Wang, Julio A. Baez, Chin Liu, Dennis K. Anderson, Jon P. Lawson, Bernhard Erb, Joseph Wieczorek, Gennaro Mucciariello, Fortunato Vanzanella, Sastry A. Kunda, Leo J. Letendre, Mark J. Pozzo, Yuen-Lung L. Sing, Edward E. Yonan
  • Publication number: 20030109721
    Abstract: The present invention relates to a process for the synthesis of oxandrolone from mestanolone. The process comprises the steps of: (a) oxidizing mestanolone to form 17&bgr;-hydroxy-17&agr;-methyl-5&agr;-androst-1-en-3-one; (b) hydroxylating the 17&bgr;-hydroxy-17&agr;-methyl-5&agr;-androst-1-en-3-one to form 1&agr;,2&agr;,17&bgr;-trihydroxy-17&agr;-methylandrostan-3-one; (c) cleaving the 1&agr;,2&agr;,17&bgr;-trihydroxy-17&agr;-methylandrostan-3-one to form 17&bgr;-hydroxy-17&agr;-methyl-1-oxo-1,2,-seco-A-nor-5&agr;-androstan-2-oic acid; and (d) reducing the 17&bgr;-hydroxy-17&agr;-methyl-1-oxo-1,2,-seco-A-nor-5&agr;-androstan-2-oic acid to form oxandrolone.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 12, 2003
    Inventors: Shaileshkumar Ramanlal Desai, David Wayne Ray, Yousry A. Sayed
  • Publication number: 20030096117
    Abstract: Novel chromene compounds having various substituents to exhibit a high color-developing sensitivity and a high density even when dispersed in a high-molecular matrix, and exhibiting a large fading rate, less color when deteriorated, and excellent light resistance in the photochromic properties; photochromic materials containing the chromene compounds; and use thereof.
    Type: Application
    Filed: October 15, 2001
    Publication date: May 22, 2003
    Inventors: Yuichiro Kawabata, Yasuko Takeda, Junji Momoda, Hironobu Nagoh, Shinobu Izumi
  • Publication number: 20030092852
    Abstract: The present invention relates to an epoxy resin composition a cure article thereof, a novel epoxy resin used therein, a polyhydric phenol compound suited for used as an intermediate thereof, and a process for preparing the same. One of the objects to be achieved by the present invention is to exert the heat resistance, the moisture resistance, the dielectric performances and the flame-resistant effect required of electric or electronic materials such as semiconductor encapsulating materials and varnishes for circuit boards in the epoxy resin composition.
    Type: Application
    Filed: July 9, 2002
    Publication date: May 15, 2003
    Applicant: Dainippon Ink and Chemicals, Inc.
    Inventors: Ichiro Ogura, Yoshiyuki Takahashi, Tomoyuki Imada
  • Patent number: 6559322
    Abstract: The present invention provides a new biocatalyst whole cell system for converting cyclic ketones such as cyclopentanone/cyclohexanone to the corresponding lactones such as valerolactone/caprolactone. Another novel aspect of the present invention is that biocatalyst fungus Fusarium oxysporum f.sp. ciceri NCIM 1282 species has been found to be an efficient biocatalyst system for any biotransformation for the first time.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: May 6, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Deendayal Mandal, Absar Ahmad, Mohammed Islam Khan, Rajiv Kumar
  • Patent number: 6555698
    Abstract: The present invention discloses chemiluminescent 1,2-dioxetane substrates capable of reacting with a neuraminidase to release optically detectable energy. These 1,2-dioxetanes have the general formula: wherein Z is and the variables are selected so as to induce decomposition of said dioxetane accompanied by chemiluminescence where Z is cleaved by neuraminidase present.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: April 29, 2003
  • Patent number: 6544945
    Abstract: The present invention relates to cyclic pro-perfumes comprising a moiety derived from a fragrance raw material alcohol. Such cyclic perfumes may contain dioxolane and glucosyl orthesters that are suitable for use in delivering enhanced fragrance longevity to human skin.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 8, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Gregory Scot Miracle, Kenneth Nathan Price, Lon Montgomery Gray
  • Patent number: 6534545
    Abstract: 6-tert-Butyl-1,1-dimethylindane derivatives which are unsaturated in the 4-position of formula: X represents: (i) either a radical of formula: (a)  and Y represents a radical of formula: (b) (ii) or a radical of formula: (c)  and Y represents either a radical of formula (b) or a radical of formula: Z being —O—, —S— or R1 represents —CH3, —(CH2)p—OR4, —(CH2)p—COR5 or —S(O)t—R6, p being 0, 1, 2 or 3, t being 0, 1 or 2, R2 represents H or lower alkyl, R3 represents H, lower alkyl or —COR7, R4 represents H, lower alkyl, —COR7, aryl, aralkyl, mono- or polyhydroxyalkyl, or a polyether radical, R5 represents H, lower alkyl, —OR8 or —N(r′)(r″), R6 represents H or lower alkyl, R7 represents lower alkyl, R8 represents H, alkyl, alkenyl, alkynyl, aryl, aralkyl, mono- or polyhydroxyalkyl, a sugar residu
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: March 18, 2003
    Assignee: Galderma Research & Development
    Inventors: Angel De Lera, Beatriz Dominguez
  • Publication number: 20030013786
    Abstract: This invention relates to plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials. More particularly, this invention relates to certain bis-halogen-alkyl-benzylidene alditol acetals and polymer compositions thereof which are useful as materials for food or cosmetic containers and packaging. These bis-halogen-alkylbenzylidene alditol acetals are also useful as gelling agents for organic solvents, particularly those used in the preparation of antiperspirant gel sticks.
    Type: Application
    Filed: March 23, 2001
    Publication date: January 16, 2003
    Inventors: John D. Anderson, Darin L. Dotson, Jeffrey L. Jones, Shawn R. Sheppard, Nathan A. Mehl
  • Publication number: 20030008951
    Abstract: Plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials are provided. More particularly, this invention relates to certain alkyl (or alkoxy) substituted halo-benzylidene sorbitol acetals and polymer compositions thereof which may be utilized within, as merely examples, food or cosmetic containers and packaging. These inventive halogenated (that is, chlorinated, brominated, or iodinated) and alkylated benzylidene sorbitol acetals are also useful as gelling agents for water and organic solvents, particularly those used in the preparation of antiperspirant gel sticks.
    Type: Application
    Filed: March 23, 2001
    Publication date: January 9, 2003
    Inventors: John D. Anderson, Darin L. Dotson, Shawn R. Sheppard, Nathan A. Mehl
  • Patent number: 6504035
    Abstract: The present invention relates to derivatives of 3-deoxy desmycosin of the formula I, wherein, starting from triply protected desmycosin, there are performed an oxidation at C-3 in the first step and then, optionally, a hydrogenation of double bonds and an epoxidation followed by a reductive opening of the oxirane ring. The present invention also relates to derivatives of 3-deoxy-desmycosin of the formula II, wherein in the first step triacetyl desmycosin is hydrogenated and then, via an intermediate mesylate, it is converted to a 2,3-didehydro derivative; or 2,3-didehydro-desmycosin is subjected to epoxidation reactions followed by a reductive opening of the oxirane ring.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: January 7, 2003
    Assignee: PLIVA, farmaceutska industrija, dionicko drustvo
    Inventors: Amalija Narandja, Nevenka Lopotar, Marko Djerek, Dra{haeck over (z)}en Pavlović
  • Publication number: 20030004238
    Abstract: Plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials are provided. More particularly, this invention relates to certain asymmetric DBS compounds comprising specific pendant groups, such as C1-C6 alkyl, C1-C6 alkoxy, phenyl, naphthyl, or substituted phenyl, or pendant groups combined to cyclic moities, such as cyclopentyl (and thus to form indan with the benzylidene), cyclohexyl (to form tetralin), and methylenedioxy (as the combination of two available sites on the pertinent ring system). Such compounds may be added to or incorporated within polymer compositions which may then be utilized within, as merely examples, food or cosmetic containers and packaging. These inventive asymmetric benzylidene sorbitol acetals are also useful as gelling agents for water and organic solvents, particularly those used in the preparation of antiperspirant gel sticks.
    Type: Application
    Filed: March 23, 2001
    Publication date: January 2, 2003
    Inventors: Jeffrey R. Jones, Nathan A. Mehl
  • Patent number: 6500863
    Abstract: Novell IL-8 compounds and methods of using them are provided.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: December 31, 2002
    Assignee: SmithKline Beecham Corporation
    Inventors: Qi Jin, Brent W. McCleland, Michael R. Palovich, Katherine L. Widdowson
  • Publication number: 20020193612
    Abstract: Compounds useful as inhibitors of PDE4 in the treatment of diseases regulated by the activation and degranulation of eosinophils, especially asthma, chronic bronchitis, and chronic obstructuive pulmonary disease, of the formula: 1
    Type: Application
    Filed: January 31, 2002
    Publication date: December 19, 2002
    Applicant: Pfizer Inc.
    Inventors: Robert J. Chambers, Anthony Marfat, Thomas V. Magee
  • Publication number: 20020193473
    Abstract: Plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials are provided. More particularly, this invention relates to certain asymmetric DBS compounds comprising monofluoro- or mono(trifluoroalkyl)-pendant groups on one ring of the aforementioned DBS and the other ring system cannot be monofluorinated. Such compounds may be added to or incorporated within polymer compositions which may then be utilized within, as merely examples, food or cosmetic containers and packaging. These inventive asymmetric benzylidene sorbitol acetals are also useful as gelling agents for water and organic solvents, particularly those used in the preparation of antiperspirant gel sticks.
    Type: Application
    Filed: March 23, 2001
    Publication date: December 19, 2002
    Inventors: John D. Anderson, Darin L. Dotson, Jeffrey R. Jones, Nathan A. Mehl
  • Publication number: 20020183423
    Abstract: Plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials are provided. More particularly, this invention relates to certain symmetric DBS compounds comprising specific pendant groups, such as C3-C6 alkyl, C1-C6 alkoxy, phenyl, and methylenedioxy (as the combination of two available sites on the pertinent ring system), as well as wherein the individual benzylidene ring systems may be indan or tetralin. Because of the required symmetrical configuration, the pendant groups on each ring system of the dibenzylidene sorbitol compound must be located at the same positions. Such compounds may be added to or incorporated within polymer compositions which may then be utilized within, as merely examples, food or cosmetic containers and packaging.
    Type: Application
    Filed: March 23, 2001
    Publication date: December 5, 2002
    Inventors: Jeffery R. Jones, Nathan A. Mehl
  • Patent number: 6455525
    Abstract: The present invention is directed to novel heterocyclic substituted pyrazolones, including pharmaceutical compositions, diagnostic kits, assay standards or reagents containing the same, and methods of using the same as therapeutics. The invention is also directed to intermediates and processes for making these novel compounds.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: September 24, 2002
    Assignee: Cephalon, Inc.
    Inventors: Jasbir Singh, Rabindranath Tripathy
  • Publication number: 20020098271
    Abstract: (6R) -4,5,6,7-Tetrahydro 3,6-dimethyl-3H-benzo[b]furan-2-one is a compound of use in perfumery and the field of flavorings, The compound can be used to impart a minty, slightly vanilla-scented odor, and its flavor imparts sweetness and roundness to the compositions to which it is added
    Type: Application
    Filed: January 10, 2002
    Publication date: July 25, 2002
    Inventors: Eric Frerot, Alain Bagnoud
  • Patent number: 6423850
    Abstract: The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product is a gamma-hydroxy amide. The resulting materials are useful as the cross-linking agents in a variety of coatings and coatings processes.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: July 23, 2002
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Albert Gordon Anderson
  • Patent number: 6413936
    Abstract: The invention relates to novel mimetics of the tetrasaccharides sialyl-Lewis-X and sialyl-Lewis-A having an improved action as inhibitors of cell adhesion, to a process for the preparation of these compounds and to their use as pharmacological active compounds and diagnostic agents.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: July 2, 2002
    Assignee: Glycorex AB
    Inventors: Wolfgang Schmidt, Ulrich Sprengard, Gerhard Kretzschmar, Robert Klein, Horst Kunz
  • Patent number: 6403775
    Abstract: Genetic engineering of the erythromycin polyketide synthase genes to effect combinatorial alterations of catalytic activities in the biosynthetic pathway can be used to generate a library of macrolides impractical to produce by chemical methods. The library includes examples of analogs with one, two and three altered carbon centers of the polyketide products.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: June 11, 2002
    Assignee: Kosan Biosciences, Inc.
    Inventor: Robert McDaniel
  • Publication number: 20020035055
    Abstract: The present invention provides a fragrance precursor of formula I: 1
    Type: Application
    Filed: June 18, 2001
    Publication date: March 21, 2002
    Inventors: Markus Gautschi, Caroline Plessis, Samuel Derrer
  • Patent number: 6346652
    Abstract: A composition and method for the catalytic conversion of a racemic mixture of dienes to a cyclic olefin by a ring-closing metathesis (RCM) reaction are disclosed. The composition, a transition metal complex with an M═C reaction site, contains a bidentate dialkoxide of at least 80% optical purity. Because the M═C reaction site is of a sufficient shape specificity, conferred in part by the dialkoxide of sufficient rigidity and a M═N—R1 site, reacting the composition with a mixture of two enantiomeric dienes results in an olefin metathesis product that has at least a 50% enantiomeric excess of one enantiomer in the mixture. A method is also provided for reacting a composition with a racemic diene mixture to generate a metathesis product that has an enantiomeric excess of at least 50%. Methods are also provided for catalytic enantioselective desymmetrization.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: February 12, 2002
    Assignee: Massachusetts Institute of Technology
    Inventors: Richard R. Schrock, Amir H. Hoveyda
  • Publication number: 20020015804
    Abstract: There can be provided a liquid crystalline compound expressed by the general formula (1): 1
    Type: Application
    Filed: July 22, 1999
    Publication date: February 7, 2002
    Inventors: YASUHIRO HASEBA, SHUICHI MATSUI, KAZUTOSHI MIYAZAWA, NORIHISA HACHIYA, ETSUO NAKAGAWA
  • Publication number: 20020009669
    Abstract: An information recording medium is disclosed, comprising a substrate having provided thereon a recording layer capable of recording information by a laser ray, wherein the recording layer contains a dye compound represented by formula (I-1): 1
    Type: Application
    Filed: February 1, 2001
    Publication date: January 24, 2002
    Inventors: Shin-ichi Morishima, Michihiro Shibata, Yoshihisa Usami
  • Patent number: 6331622
    Abstract: A process for the formation of an epoxy compound comprising contacting a substrate compound having an olefinic double bond with a peroxide compound in the presence of a peroxide activator, said peroxide activator corresponding to the formula: where Ro is a substituent having an electron withdrawing strength not less than that of monochloromethyl.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: December 18, 2001
    Assignee: G.D. Searle & Co.
    Inventors: John S. Ng, Ping T. Wang, Julio A. Baez, Chin Liu, Dennis K. Anderson, Jon P. Lawson, Bernhard Erb, Joseph Wieczorek, Gennaro Mucciariello, Fortunato Vanzanella, Sastry A. Kunda, Leo J. Letendre, Mark J. Pozzo, Yuen-Lung L. Sing, Edward E. Yonan
  • Patent number: 6326395
    Abstract: Methods of treating fungal infections comprise administering a therapeutically effective amount of a compound described by Formulas [(I)-(VI)]. Examples of fungal infections include Candida albicans, Cryptococcus neoformans, Aspergillus fumigatus, Fusarium solani, and combinations thereof.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: December 4, 2001
    Assignees: Duke University, University of North Carolina-Chapel Hill, Georgia State University Research Found, Inc.
    Inventors: Richard R. Tidwell, David W. Boykin, John R. Perfect
  • Patent number: 6306862
    Abstract: A pharmaceutical composition for treating a hepatic disorder, comprising a triterpene derivative represented by the formula (I) or a pharmaceutically acceptable salt thereof is disclosed: wherein R1 represents a hydroxyl group, alkoxy, alkylcarbonyloxy, or aralkyloxy; R2 represents alkyl, —CH2OR5, wherein R5 represents a hydrogen atom, alkyl, aralkyl, or alkylcarbonyl, formyl, —COOR6, wherein R6 represents a hydrogen atom or alkyl, or —CH2N(R7)R8; or R1 and R2 combine with each other to form —O—CR9(R10)—OCH2—, wherein R9 and R10, which may be the same or different, represent a hydrogen atom, alkyl, or aryl; R3 and R4, which may be the same or different, represent a hydrogen atom, a hydroxyl group, alkyl, hydroxyalkyl, formyl, —COOR11, wherein R11 represents a hydrogen atom or alkyl, or —OR12, wherein R12 represents alkyl, aralkyl, C1-6 alkylcarbonyl, arylcarbonyl, alkenyl, alkenylcarbonyl, or arylalkenylcarbonyl which may be optionally s
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: October 23, 2001
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Kazue Sasaki, Nobuto Minowa, Shoji Nishiyama, Hiroyuki Kuzuhara
  • Publication number: 20010029301
    Abstract: A process for preparing 5,5′-bi-1H-tetrazolediammonium salts (BHT.2NH3) maintaining a high yield through oxaldiimidic acid dihydrazide (OAH) from the starting materials which are cheaply available and are easy to handle. The 5,5′-bi-1H-tetrazolediamnonium salts (BHT.2NH3) are prepared by dissolving the oxaldiimidic acid dihydrazide (OAH) obtained by the reaction of hydrated hydrazide with dicyan in an aqueous solution of a weakly acidic compound such as acetic acid, dropwisely adding an aqueous solution of sodium nitrite thereto to form an azide thereof and to effect the cyclization reaction by heating, adding an aqueous solution of sodium hydroxide to the reaction product to convert it into a 5,5′-bi-1H-tetrazoledisodium salt (BHT.2Na), reacting it with an aqueous solution of ammonium chloride, and recovering the formed ammonium salt as sparingly soluble crystals.
    Type: Application
    Filed: March 22, 2001
    Publication date: October 11, 2001
    Applicant: JAPAN HYDRAZINE CO., LTD.
    Inventors: Shunji Hyoda, Masaharu Kita, Hirotoshi Sawada, Shuichi Nemugaki, Takahiro Ueta, Kohki Satoh
  • Patent number: 6268513
    Abstract: The present invention discloses new efficient processes for various bond forming reactions, including Suzuki reactions and aryl aminations. Organic compounds (e.g., ligands), their metal complexes and compositions using those compounds, provide useful catalysts. The invention also relates to performing Suzuki cross coupling reactions with unreactive aryl-chlorides.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: July 31, 2001
    Assignee: Symyx Technologies, Inc.
    Inventors: Anil Guram, Xiaohong Bei
  • Patent number: 6255340
    Abstract: A pesticidal composition comprising prallethrin and a neonicotinoid compound given in the following formula (1), (2) or (3), as an active ingredient wherein, A represents a 6-chloro-3-pyridyl, 2-chloro-5-thiazolyl, tetrahydrofuran-2-yl, tetrahydrofuran-3-yl, 5-methyltetrahydrofuran-3-yl, 3-pyridyl, 6-bromo-3-pyridyl, 3-cyanophenyl, 2-methyl-5-thiazolyl, 2-phenyl-5-thiazolyl or 2-bromo-5-thiazolyl group; R1 represents a hydrogen atom, methyl, ethyl, formyl or acetyl group; R2 represents a methyl, amino, methylamino, N,N-dimethylamino, ethylamino, N,N-diethylamino, N-methyl-N-ethylamino, 1-pyrrolidinyl, (6-chloro-3-pyridyl) methylamino or N-methyl-N-(6-chloro-3-pyridyl)methylamino group; R3 represents a methyl, ethyl, propyl, propenyl or propynyl group; X represents a nitrogen atom or CH group; Y represents a cyano, nitro or trifluoroacetyl group; Z represents a NH group or sulfur atom; D represents an oxygen atom or —N(CH3)— group; m represents 0 or 1; and n represents 2 or 3, has
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: July 3, 2001
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Izumi Fujimoto
  • Patent number: 6225487
    Abstract: A new ligand having a backbone comprised of PCCC, where the last carbon atom is sp3 hybridized can be combined with a metal or metal precursor compound or formed into a metal-ligand complex to catalyze a number of different chemical transformations, including C—N bond formation.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: May 1, 2001
    Assignee: Symyx Technologies, Inc.
    Inventor: Anil Guram
  • Patent number: 6162915
    Abstract: Chlorosulfonyl substituted aromatic heterocyclic compounds, such as 2-chlorosulfonyl[1,2,4]triazolo[1,5-c]pyrimidine compounds, were prepared in good yield by chloroxidation of di(aromatic heterocyclyl) disulfide compounds in a medium containing water, a water-immiscible organic solvent, and a phase transfer catalyst, such at tetrabutylammonium chloride.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: December 19, 2000
    Assignee: Dow AgroSciences LLC
    Inventors: Douglas L. Pearson, Jimmy J. Tai, Timothy J. Adaway
  • Patent number: 6124476
    Abstract: The present invention discloses new organic compounds (e.g., ligands), their metal complexes and compositions using those compounds. The invention also relates to the field of catalysis. In particular, this invention relates to new compounds which when combined with suitable metals or metal precursor compounds provide useful catalysts for various bond-forming reactions, including Suzuki cross-coupling reactions. The invention also relates to performing Suzuki cross coupling reactions with unreactive aryl-chlorides.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: September 26, 2000
    Assignee: Symyx Technologies, Inc.
    Inventors: Anil Guram, Xiaohong Bei, Timothy S. Powers, Bernd Jandeleit, Thomas Crevier
  • Patent number: 6025371
    Abstract: The invention provides chemistry libraries containing fused 2,4-pyrimidinediones. The invention also provides methods for the construction of fused 2,4-pyrimidinedione containing libraries. The invention further provides methods for the identification of bioactive, fused 2,4-pyrimidinediones from those libraries.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: February 15, 2000
    Assignee: Versicor, Inc.
    Inventors: Mikhail F. Gordeev, Dinesh V. Patel
  • Patent number: 5981496
    Abstract: Novel .alpha.-pyrones are described. The .alpha.-pyrones are useful in a method for controlling .alpha.-pyrone responsive states in a mammal. The method includes administering to a mammal a therapeutically effective amount of an .alpha.-pyrone such that control of .alpha.-pyrone responsive states in a mammal occurs. .alpha.-Pyrone responsive states can be associated with undesirable cell proliferation such as bacteria or cancer. Packaged pharmaceuticals and pharmaceutical compositions including the novel .alpha.-pyrones are also described.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: November 9, 1999
    Assignee: Millennium Pharmaceutical, Inc.
    Inventors: Seth Cohen, Zhi-Dong Jiang
  • Patent number: 5969174
    Abstract: The present invention provides a compound having the structure ##STR1## wherein S* is S.dbd.O or O.dbd.S.dbd.O; and wherein R.sub.1 is selected from the group consisting of (C.sub.1 -C.sub.9) alkyl, (C.sub.3 -C.sub.8) cycloalkyl, (C.sub.5 -C.sub.7) cycloalkenyl, and (C.sub.6 -C.sub.20) aryl substituted with halogen or (C.sub.1 -C.sub.18) alkyl; and wherein R.sub.2 is selected from the group consisting of alkyl, (C.sub.1 -C.sub.9) alkyl, (C.sub.3 -C.sub.8) cycloalkyl, (C.sub.5 -C.sub.7) cycloalkenyl, and (C.sub.6 -C.sub.20) aryl substituted with halogen or (C.sub.1 -C.sub.18) alkyl. Also provided are various methods of using the compositions of the present invention.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: October 19, 1999
    Assignee: University of Maryland at Baltimore County
    Inventors: Donald Creighton, Malcolm J. Kavarana, Diana S. Hamilton
  • Patent number: 5919432
    Abstract: Poly(amino acid) derivatives, which are chelating agents of paramagnetic metal ions, in which at least 3 of the donor nitrogen atoms carry identical or different substituents, of formulaCH(R.sub.1)--X,in which X represents CO.sub.2 R.sub.a, CONR.sub.b R.sub.c or P(R.sub.d)O.sub.2 H and R.sub.a, R.sub.b and R.sub.c, which are identical or different, represent H or optionally hydroxylated (C.sub.1 -C.sub.8)alkyl, R.sub.d represents OH, (C.sub.1 -C.sub.8)alkyl or (C.sub.1 -C.sub.8)alkoxy and R.sub.1 represents a hydrophilic group with a molecular weight greater than 200 containing at least 3 oxygen atoms, with the proviso that at least 3 of the X groups are optionally salified acid functional groups.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: July 6, 1999
    Assignee: Guerbet S.A.
    Inventors: Dominique Meyer, Olivier Rousseaux, Michel Schaefer, Christian Simonot
  • Patent number: 5861138
    Abstract: Novel ligands for use in MRI contrast agents and which have the formula ##STR1## wherein R.sub.1 -R.sub.14, M", l, m, and n are defined herein.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: January 19, 1999
    Assignee: Hoechst Celanese Corp.
    Inventors: Wei-Jun Peng, Daniel A. Aguilar
  • Patent number: 5852159
    Abstract: The present invention relates to plastics comprising a high molecular weight, sterically hindered amine, wherein the sterically hindered amine is at least one amine from the group consisting ofI: oligomerized 2,2,4,4-tetramethyl-20(oxiranylmethyl)-7-oxa-3,20-diazadispiro?5.1.11.2!he neicosan-21-one,II: condensation product of 2-chloro-4,6-di(4-n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triaz ine and 1,2-bis(3-aminopropylamino)ethane, andIII: condensation product of 1-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid.These plastics exhibit a reduced rate of uptake of sulfur compounds.The invention further relates to shaped articles made from these plastics.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: December 22, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Matthias Zah, Gerhard Pfahler, Karl Gaa, Klaus Keck-Antoine
  • Patent number: 5846956
    Abstract: Amino acid derivatives of formula (Ia) and (Ib) and pro-drugs thereof containing a group responsible for chelating the zinc atom of enkephalinase and angiotensin convertase enzymes are disclosed as inhibitors of these enzymes.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: December 8, 1998
    Assignee: Societe Civile Bioprojet
    Inventors: Jean-Christophe Plaquevent, Denis Danvy, Thierry Monteil
  • Patent number: 5831102
    Abstract: Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature before a bond by which an enzymatically cleavable labile substituent thereof is intentionally cleaved, are disclosed. These compounds can be represented by the formula: ##STR1## wherein: X and X.sup.1 each represent, individually, hydrogen, a hydroxyl group, a halo substituent, an unsubstituted lower alkyl group, a hydroxy (lower) alkyl group, a halo (lower) alkyl group, a phenyl group, a halophenyl group, an alkoxyphenyl group, a hydroxyalkoxy group, a cyano group or an amide group, with at least one of X and X.sup.1 being other than hydrogen; andR.sub.1 and R.sub.2, individually or together, represent an organic substituent that does not interfere with the production of light when the dioxetane compound is enzymatically cleaved and that satisfies the valence of the dioxetane compound's 4-carbon atom, with the provisos that if R.sup.1 and R.sub.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: November 3, 1998