The Hetero Ring Is Five-membered Patents (Class 549/229)
  • Patent number: 6706724
    Abstract: The invention describes novel substituted aryl compounds that are cyclooxygenase 2 (COX-2) selective inhibitors and novel compositions comprising at least one cyclooxygenase 2 (COX-2) selective inhibitor, and, optionally, at least one compound that donates, transfers or releases nitric oxide, stimulates endogenous synthesis of nitric oxide, elevates endogenous levels of endothelium-derived relaxing factor or is a substrate for nitric oxide synthase, and/or, optionally, at least one therapeutic agent, such as, steroids, nonsterodal antiinflammatory compounds (NSAID), 5-lipoxygenase (5-LO) inhibitors, leukotriene B4 (LTB4) receptor antagonists, leukotriene A4 (LTA4) hydrolase inhibitors, 5-HT agonists, 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) inhibitors, H2 antagonists, antineoplastic agents, antiplatelet agents, thrombin inhibitors, thromboxane inhibitors, decongestants, diuretics, sedating or non-sedating anti-histamines, inducible nitric oxide synthase inhibitors, opioids, analgesics, Helicobacter pyl
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 16, 2004
    Assignee: NitroMed, Inc.
    Inventors: Subhash P. Khanapure, David S. Garvey, Richard A. Earl, Maiko Ezawa, Xinqin Fang, Ricky D. Gaston
  • Patent number: 6703513
    Abstract: The present invention provides analogues of autoinducer molecules that are derivatized to allow their attachment to other molecules and surfaces. Libraries of the autoinducer analogues are also contemplated. Also provided are methods for using the compounds of the invention to produce compositions, such as immunoconjugates, antibodies and vaccines, which are useful for treating and preventing disease states in a subject. The compositions of the invention are also useful in various assays, including assessing the autoinducer load in a subject.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: March 9, 2004
    Assignee: K-Quay Enterprises LLC
    Inventor: Steven C. Quay
  • Publication number: 20040044229
    Abstract: Disclosed is a process wherein a first olefin selected from certain &agr;,&bgr;-dihydroxyalkenes and 4-(alkenyl)ethylenecarbonates is reacted with a second olefin reactant to produce an olefin metathesis product. When the first olefin reactant is an optically enriched or enantiomerically pure &agr;,&bgr;-dihydroxyalkene, cross metathesis reactions produce products possessing the same optical purity. The &agr;,&bgr;-dihydroxyalkenes and the 4-(alkenyl)ethylene carbonates may be converted to hydrogenated products, and the 4-(alkenyl)ethylenecarbonates may be decarboxylated to provide the corresponding epoxides. The products of the disclosure may be used as monomers for the preparation of specialty polyesters and as intermediates in the manufacture pharmaceuticals and other chemicals.
    Type: Application
    Filed: June 3, 2003
    Publication date: March 4, 2004
    Inventors: Robert Thomas Hembre, Jonathan Michael Penney
  • Patent number: 6699890
    Abstract: PDE4 inhibition is achieved by novel compounds, e.g., N-substituted aniline and diphenylamine analogs. The compounds of the present invention are of Formula I: wherein R1, R2 , R3 and R4 are as defined herein.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: March 2, 2004
    Assignee: Memory Pharmaceuticals Corp.
    Inventors: Richard A. Schumacher, William F. Brubaker, Michael De Vivo, Hans-Jürgen Ernst Hess, Allen Hopper, Ashok Tehim, Ruiping Liu, Axel Unterbeck
  • Patent number: 6699998
    Abstract: A non-aqueous electrolyte comprising a non-aqueous solvent and a lithium salt dissolved therein, and a cyclic carbonate, linear carbonate, and vinylene carbonate having a chlorine content of 100 ppm or less, and a lithium secondary battery using the same.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: March 2, 2004
    Assignee: UBE Industries, Ltd.
    Inventors: Toshikazu Hamamoto, Koji Abe, Tsutomu Takai, Yasuo Matsumori
  • Patent number: 6693092
    Abstract: The present invention relates to novel arylphenyl-substituted cyclic ketoenols of the formula (I) in which X represents halogen, alkyl, alkoxy, alkenyloxy, alkylthio, alkylsulphinyl, alkylsulphonyl, halogenoalkyl, halogenoalkoxy, halogenoalkenyloxy, nitro, cyano or in each case optionally substituted phenyl, phenoxy, phenylthio, phenylalkoxy or phenylalkylthio, Y represents in each case optionally substituted cycloalkyl, aryl or hetaryl, W and Y independently of one another each represent hydrogen, halogen, alkyl, alkoxy, alkenyloxy, halogenoalkyl, halogenoalkoxy, halogenoalkenyloxy, nitro or cyano, CKE represents one of the groups  in which A, B, D, G and Q1 to Q6 are each as defined in the description, to a plurality of processes for their preparation and to their use as pesticides and herbicides.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: February 17, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Folker Lieb, Reiner Fischer, Alan Graff, Udo Schneider, Thomas Bretshneider, Christoph Erdelen, Wolfram Andersch, Mark Wilhelm Drewes, Markus Dollinger, Ingo Wetcholowsky, Randy Allen Myers
  • Publication number: 20040030164
    Abstract: A process for the preparation of the compound 13-(N-Boc-&bgr;-isobutylisoserinyl)-14&bgr;-hydroxybaccatine III 1,14-carbonate.
    Type: Application
    Filed: May 27, 2003
    Publication date: February 12, 2004
    Inventors: Alessandro Pontiroli, Ezio Bombardelli
  • Publication number: 20040024227
    Abstract: The present invention provides an alkylene-carbonate synthesis catalyst comprising a compound insoluble to one phase containing alkylene carbonate produced when the alkylene oxide and carbon dioxide are reacted with the catalyst and soluble to the other phase substantially free of alkylene carbonate. The catalyst allows alkylene carbonate to be produced with high yield and selectivity and be readily collected. The catalyst also facilitates repeated or continuous reaction process in a cost-effective manner. The present invention also provides an apparatus for producing alkylene carbonate using the catalyst.
    Type: Application
    Filed: March 6, 2003
    Publication date: February 5, 2004
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Toshiyasu Sakakura, Hiroyuki Yasuda
  • Publication number: 20040002539
    Abstract: Aminoguanidine and alkoxyguanidine compounds, including compounds of the formula: 1
    Type: Application
    Filed: April 22, 2003
    Publication date: January 1, 2004
    Applicant: 3-Dimensional Pharmaceuticals, Inc.
    Inventors: Bruce E. Tomczuk, Richard M. Soll, Tianbao Lu, Cynthia L. Fedde, Carl R. Illig, Thomas P. Markotan
  • Publication number: 20040002611
    Abstract: Ortho esters and ortho carbonates can be produced by alkylating esters and carbonates with, for example, the hexafluorophosphate salt of a trialkyl oxonium ion. The spiro species are useful intermediates in the synthesis of complex organic molecules. Synthetic pathways for the production of medically active compounds incorporates spiro ortho esters. Anti-first-pass effect materials are produced in high yield utilizing a synthetic strategy incorporating cyclic ortho ester intermediates.
    Type: Application
    Filed: May 9, 2003
    Publication date: January 1, 2004
    Applicant: BIOAVAILABILITY SYSTEMS, LLC
    Inventors: Robert Seemayer, Jack Liang
  • Patent number: 6649652
    Abstract: A methods of treating an infection comprises administering a therapeutically effective amount of a compound described by the Formula (I)
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: November 18, 2003
    Assignees: The University of North Carolina at Chapel Hill, Georgia State University Research Foundation, Inc.
    Inventors: David W. Boykin, M. Syed Rahmathullah, Richard R. Tidwell, James E. Hall
  • Publication number: 20030187037
    Abstract: Novel compounds of the formula I, in which R, R1 and R2 are as defined in patent claim 1, are inhibitors of coagulation factor Xa and VIIa and can be employed for the treatment of thromboses, myocardial infarction, arteriosclerosis, inflammation, apoplexis, angina pectoris, restenosis after angioplasty, claudicatio intermittens, tumours, tumour diseases and/or tumour metastases.
    Type: Application
    Filed: January 29, 2003
    Publication date: October 2, 2003
    Inventors: Werner Mederski, Horst Juraszyk, Dieter Dorsch, Christos Tsaklakidis, Johannes Gleitz, Christopher Barnes
  • Patent number: 6627762
    Abstract: Compounds of the formula: wherein R1 is H or methyl, R2 is H or alkyl, R3 is C2-C4 alkylene, n is 0-4, n′ is 1-4, x is one or more, y is one or more, x+y=z, and A is a z-valent organic group linked to the group or groups on the left thereof through a carbon atom and is linked to the group or groups on the right thereof through an ether or ester oxygen atom, or, provided that x and y are both 1, a direct bond.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: September 30, 2003
    Inventors: John G. Woods, Susanne D. Morrill
  • Patent number: 6627656
    Abstract: This invention encompasses a method for the treatment or prevention of prostaglandin mediated diseases comprising administering to a mammalian patient a compound of formula I: in an amount that is effective to treat or prevent said prostaglandin mediated disease. Novel compounds are also disclosed.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: September 30, 2003
    Inventors: Michel Gallant, Nicolas Lachance, Marc Labelle, Robert Zamboni, Helene Juteau, Yves Gareau, Patrick Lacombe
  • Patent number: 6627761
    Abstract: The present invention provides a more economical method of producing multifunctional carbonate resins. It overcomes the disadvantage of using relatively expensive starting material, such as polyglycidyl ethers, that have traditionally been used. The present invention makes use of readily available and inexpensive multi-isocyanate compounds reacted with organic carbonates that contain pendant hydroxyl groups to produce products that contain two or more carbonate functionalities. One form of the present invention is a method for preparing a carbonate urethane compound by reacting a carbonate containing compound that also contains a reactive hydroxyl group with a compound containing at least two isocyanate groups. The reaction is performed in a solvent and in the presence of a base.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: September 30, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Howard P. Klein, David C. Alexander, Susan A. Woodrum, James R. Machac, Jr.
  • Publication number: 20030158252
    Abstract: Aminoguanidine and alkoxyguanidine compounds, including compounds of the formula: 1
    Type: Application
    Filed: February 6, 2003
    Publication date: August 21, 2003
    Applicant: 3-Dimensional Pharmaceuticals, Inc.
    Inventors: Bruce E. Tomczuk, Richard M. Soll, Tianbao Lu, Cynthia L. Fedde, Carl R. Illig, Thomas P. Markotan, Thomas P. Stagnaro
  • Patent number: 6608213
    Abstract: This invention provides a precursor compound of a novel fluorescence-labeled probe for DNA, prepared by covalent binding of a fluorescent substance such as fluorescein isothiocyanate, wherein a conjugating group was bounded, with aminoalkylate phenylamine. This invention also provides a novel fluorescence-labeled probe for DNA by diazotizing amino group of phenylamine contained in the precursor compound. Furthermore, a fluorescence labeled plasmid can be produced by conjugating the fluorescence-labeled probe and purine ring of guanine contained in the DNA plasmid through diazonium group.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: August 19, 2003
    Assignee: Tokyo Institute of Technology
    Inventors: Toshinori Sato, Yoshio Okahata
  • Publication number: 20030120090
    Abstract: A method of synthesizing trimethylene carbonate, which includes the steps of reacting 1,3-propanediol and phosgene in vapor form, providing a combination of temperature and pressure at which trimethylene carbonate is in its vapor phase, providing a residence time sufficient to react 1,3-propanediol and phosgene to trimethylene carbonate, condensing the trimethylene carbonate vapors, and isolating the condensed trimethylene carbonate.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 26, 2003
    Inventors: Mark P. Bowman, Charles B. Kreutzberger
  • Patent number: 6579902
    Abstract: Compounds of formula (I); wherein R1=alkyl, alkenyl or alkynyl, O-alkyl, O-alkenyl or optionally substituted, optionally interrupted O-alkynyl; R2=hydrogen or halogen; R3=hydrogen, alkyl or halogen; R4=NHR′ or NHOR″, R′ or R″ are identical or different and represent hydrogen, alkyl, alkenyl or alkynyl, aryl; R5=hydrogen or O-alkyl; R6=alkyl or CH2—O-alkyl; R7=hydrogen or alkyl or R6 et R7 form a cycle together with the carbon carrying them in addition to the addition salts thereof with bases. The compounds of formula (I) have antibiotic properties.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: June 17, 2003
    Assignee: Aventis Pharma S.A.
    Inventors: Jacques Demassey, Michel Klich, Branislav Musicki
  • Patent number: 6562967
    Abstract: One aspect of the present invention relates to a method for the kinetic resolution of racemic and diastereomeric mixtures of chiral compounds. The critical elements of the method are: a non-racemic chiral tertiary-amine-containing catalyst; a racemic or diastereomeric mixture of a chiral substrate, e.g., a cyclic carbonate or cyclic carbamate; and a nucleophile, e.g., an alcohol, amine or thiol. A preferred embodiment of the present invention relates to a method for achieving the kinetic resolution of racemic and diastereomeric mixtures of derivatives of &agr;- and &bgr;-amino, hydroxy, and thio carboxylic acids. In certain embodiments, the methods of the present invention achieve dynamic kinetic resolution of a racemic or diastereomeric mixture of a substrate, i.e.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: May 13, 2003
    Assignee: Brandeis University
    Inventors: Li Deng, Jianfeng Hang, Liang Tang
  • Patent number: 6562966
    Abstract: One aspect of the present invention relates to a method for the kinetic resolution of racemic and diastereomeric mixtures of chiral compounds. The critical elements of the method are: a non-racemic chiral tertiary-amine-containing catalyst; a racemic or diastereomeric mixture of a chiral substrate, e.g., a cyclic carbonate or cyclic carbamate; and a nucleophile, e.g., an alcohol, amine or thiol. A preferred embodiment of the present invention relates to a method for achieving the kinetic resolution of racemic and diastereomeric mixtures of derivatives of &agr;- and &bgr;-amino, hydroxy, and thio carboxylic acids. In certain embodiments, the methods of the present invention achieve dynamic kinetic resolution of a racemic or diastereomeric mixture of a substrate, i.e.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: May 13, 2003
    Assignee: Brandeis University
    Inventors: Li Deng, Jianfeng Hang, Liang Tang
  • Publication number: 20030087162
    Abstract: The present invention relates to a lithium ion battery, more particularly to a new electrolyte and a lithium ion battery which comprises the same using an anode including graphitized carbon and a cathode including lithium-containing transition metal oxide. The present invention provides a compound of 4-carbomethoxymethyl-1,3-dioxan-2-one or 4-carboethoxymethyl-1,3-dioxolan-2-one represented by formula (1) which comprises both a cyclic ring carbonate structure and a linear carbonate structure, a lithium-containing electrolyte which includes the compound of formula (1), and a lithium ion battery which includes the electrolyte using the anode including graphitized carbon and the cathode including lithium-containing transition metal oxide. The lithium ion battery of the present invention fabricated by using the new compound has high electric capacity because of the graphitized carbon, and superior charge-discharge cyclic life characteristic and low temperature performance.
    Type: Application
    Filed: September 7, 2001
    Publication date: May 8, 2003
    Inventors: Hyeong-Jin Kim, Seung-II Yoo, Jae-Sik Chung
  • Publication number: 20030050485
    Abstract: The synthesis of taxol and other tricyclic and tetracyclic taxanes.
    Type: Application
    Filed: July 12, 2002
    Publication date: March 13, 2003
    Applicant: Florida State University
    Inventors: Robert A. Holton, Carmen Somoza, Hyeong Baik Kim, Mitsuru Shindo, Ronald J. Biediger, P. Douglas Boatman, Chase C. Smith, Feng Liang, Krishna K. Murthi
  • Patent number: 6521663
    Abstract: Phenyl acetamide compounds are described, including compounds of Formula I: or a solvate, hydrate or pharmaceutically acceptable salt thereof; wherein R3-R6, R11, B, Y and W are set forth in the specification. The compounds of the invention are potent inhibitors of proteases, especially trypsin-like serine proteases, such as thrombin and factor Xa. Compositions for inhibiting loss of blood platelets, inhibiting formation of blood platelet aggregates, inhibiting formation of fibrin, inhibiting thrombus formation, and inhibiting embolus formation are described. Other uses of compounds of the invention are as anticoagulants either embedded in or physically linked to materials used in the manufacture of devices used in blood collection, blood circulation, and blood storage, such as catheters, blood dialysis machines, blood collection syringes and tubes, blood lines and stents. Additionally, the compounds can be detectably labeled and employed for in vivo imaging of thrombi.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: February 18, 2003
    Assignee: 3-Dimensional Pharmaceuticals, Inc.
    Inventors: Wenxi Pan, Tianbao Lu, Thomas P. Markotan, Bruce E. Tomczuk
  • Patent number: 6515145
    Abstract: A method for preparing carbonates includes reacting an alkylene oxide with carbon dioxide in the presence of a catalyst and a non-protic solvent. The method further includes having the boiling point of the solvent greater than about 70 ° C., and removing the solvent from the reaction product. The solvent used in the various forms of the present invention can be glyme, diglyme, tetraglyme, cumene, toluene, tetrahydofuran, cyclohexanone, ethylbenzene, aromatic hydrocarbons, or ethers. The catalyst used can be a tetraalkyl ammonium halide, such as tetraethyl ammonium bromide. The alkylene oxide that can be used in the invention can include Bisphenol A, Bisphenol B, Bisphenol F, alkylene oxides that have alkyl substituent groups, alkylene oxides that have aryl substituent groups, and alkylene oxides that contain both alkyl and aryl substituent groups. An essentially solvent free carbonate can be prepared by flash removal of the solvent.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: February 4, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventors: James R. Machac, Jr., Edward T. Marquis, Howard P. Klein
  • Patent number: 6495703
    Abstract: The present invention provides a simple and inexpensive process for preparing glycerol carbonate. Namely, according to the present invention, glycerol carbonate is prepared by reacting glycerol with urea.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: December 17, 2002
    Assignee: Kao Corporation
    Inventors: Munehisa Okutsu, Tomohito Kitsuki
  • Publication number: 20020173668
    Abstract: Diels-Alder adducts of dienophiles such as epoxybutene with dienes such as cyclopentadiene and cyclohexadiene are produced by carrying out the Diels-Alder reaction thereof at an elevated pressure. Addional dienophiles disclosed include 2,5-dihydrofuran and derivatives thereof; Additional dienes include isoprene and butadiene. Compounds produced from such reactions are also disclosed.
    Type: Application
    Filed: February 8, 2002
    Publication date: November 21, 2002
    Inventors: Mark E. Welker, Marion A. Franks
  • Patent number: 6465647
    Abstract: Compounds of the Formula 1, Formula 2, Formula 3 and Formula 4 wherein the symbols have the meaning assigned to them in the disclosure have retinoid-like biological activity.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 15, 2002
    Assignee: Allergan, Inc.
    Inventors: Richard L. Beard, Diana F. Colon, Roshantha A. Chandraratna
  • Patent number: 6465646
    Abstract: Compounds of Formula 1 and of Formula 2 where the symbols have the meaning defined in the specification, have retinoid, retinoid antagonist or retinoid negative hormone like biological activity.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 15, 2002
    Assignee: Allergan, Inc.
    Inventors: Richard L. Beard, Diana F. Colon, Roshantha A. Chandraratna
  • Patent number: 6458969
    Abstract: This invention concerns a process to provide high purity alkylene carbonate though use of multiple distillations wherein the unused fractions are recycled to the reactor. The high purity alkylene carbonate may be further purified by use of carbon to produce electrochromic or photochromic grade alkylene carbonate by reducing its UV absorbance.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: October 1, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: James R. Machac, Jr., Edward T. Marquis, Ronald L. Savage, Susan A. Woodrum, John R. Sanderson
  • 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
  • Patent number: 6433189
    Abstract: The synthesis of taxol and other tricyclic and tetracyclic taxanes.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: August 13, 2002
    Assignee: Florida State University
    Inventors: Robert A. Holton, Carmen Somoza, Hyeong Baik Kim, Mitsuru Shindo, Ronald J. Biediger, P. Douglas Boatman, Chase Smith, Feng Liang, Krishna Murthi
  • Patent number: 6407264
    Abstract: The present invention relates to a method to prepare alkylene carbonate of the formula (1) wherein, R1 and R2 are each independently H; C1-C4 alkyl or phenyl group; which method characterized by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising a) metal halide [MXm] and b) pyridine or pyridine derivative [Py], wherein Py is selected from a group of pyridines; M is a metal atom selected from the group consisting of Zn, Fe, Mn, Pb and In; X is a halogen selected from the group consisting of Cl, Br and I; and m is 2 or 3.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: June 18, 2002
    Assignee: Korea Institute of Science and Technology
    Inventors: Hoon Sik Kim, Jai Jun Kim, Byung Gwon Lee, Hong Gon Kim
  • Patent number: 6399536
    Abstract: A catalyst of the formula (1) for the synthesis of alkylene carbonate by reacting alkylene oxide and carbon dioxide LmMXn  (1) wherein L is selected from a group of pyridines; M is a metal atom selected from Zn, Fe, Mn, Pb and In; X is a halogen atom selected from Cl, Br and I; m is 1 or 2, and n is 2 or 3.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: June 4, 2002
    Assignee: Korea Institute of Science and Technology
    Inventors: Hoon Sik Kim, Byung Gwon Lee, Sang Deuk Lee, Young Soo Kwon, Hyun Joo Lee
  • Patent number: 6395908
    Abstract: The invention relates to a process for the preparation of vinylene carbonate of the formula (I) by reacting a monohaloethylene carbonate of the formula (II) in which X is a halogen atom, with a dehydrohalogenating agent at elevated temperature in the presence of an organic solvent, characterized in that the organic solvent employed is ethylene carbonate. The process according to the invention enables vinylene carbonate to be prepared in a simple manner and in high yield. The vinylene carbonate prepared in accordance with the invention can be used for various applications.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: May 28, 2002
    Assignee: Merck Patentgesellschaft
    Inventors: Bernhard Seifert, Sylvia Becker, Mark Neuschütz
  • Patent number: 6392059
    Abstract: Intermediates for the preparation of himbacine exhibiting muscarinic M2 receptor antagonism, which are hydronaphtho[2,3-c]furan derivatives represented by general formula (1) or intermediates for the preparation thereof: wherein R1 is lower alkyl or aralky; R2 is hydrogen, lower alkyl or aralkyl; R3 and R4 together represent oxygen or methylene, or alternatively R4 is hydroxyl, lower alkoxy, aralkyloxy or lower acyloxy, with R3 being hydrogen; R5 and R6 together represent oxygen, or alternatively R6 is hydroxyl, lower alkxy, aralkyloxy or lower acyloxy, with R5 being hydrogen; and either of the broken lines is a single bond and the other thereof is a double bond, or alternatively both are single bonds.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: May 21, 2002
    Assignees: Sagami Chemical Reasearch Center, Kyorin Pharmaceutical Co., Ltd.
    Inventors: Shiro Terashima, Masanori Takadoi, Akihiro Ishiwata, Tadashi Katoh
  • Patent number: 6384240
    Abstract: This invention concerns a process to provide high purity alkylene carbonate though use of multiple distillations wherein the unused fractions are recycled to the reactor. The high purity alkylene carbonate may be further purified by use of carbon to produce electrochromic or photochromic grade alkylene carbonate by reducing its UV absorbance.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: May 7, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: James R. Machac, Jr., Edward T. Marquis, Ronald L. Savage, Susan A. Woodrum, John R. Sanderson
  • Patent number: 6384239
    Abstract: The invention relates to a process for the preparation of monohalogenated 2-oxo-1,3-dioxolanes of the general formula C3H3XO3  (I) in which X is Cl or Br, characterized in that the monohalogenation is carried out starting from ethylene carbonate with sulfuryl dihalides under UV irradiation and in the absence of solvents.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: May 7, 2002
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Bernhard Seifert, Sylvia Becker
  • Patent number: 6376539
    Abstract: The present invention relates to novel substituted bicyclic lactones, to processes for their preparation and to their use for the prevention and/or treatment of disorders caused by hyper- or hypofunction of the glutamatergic system, in particular of cerebral ischaemias, cranial cerebral trauma, states of pain or CNS-mediated spasms.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: April 23, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Stolle, Horst-Peter Antonicek, Stephen Lensky, Arnd Voerste, Thomas Müller, Jörg Baumgarten, Karsten von dem Bruch, Gerhard Müller, Udo Stropp, Ervin Horváth, Jean-Marie-Viktor de Vry, Rudy Schreiber
  • Patent number: 6365736
    Abstract: Described are benzoxazine and benzothiazine compounds of the formula I defined herein, methods for their preparation and methods for their use in pharmaceuticals based on their activity as NO-synthases (NOS) inhibitors.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: April 2, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Peter Hölscher, Hartmut Rehwinkel, Stefan Jaroch, Detlev Suelzle
  • Patent number: 6337350
    Abstract: Derivatives of aryl and heterocyclic ureido and aryl and heterocyclic carboxamido phenoxy isobutyric acids have been found to inhibit the nonenzymatic glycation of proteins which often results in formation of advanced glycation endproducts and crosslinks. Many other phenoxyisobutyric acid derivatives as well as certain other compounds as set out in this disclosure also have been found to inhibit the nonenzymatic glycation of proteins. The nonenzymatic glycation and crosslinking of proteins is a part of the aging process with the glycation endproducts and crosslinking of long-lived proteins increasing with age. This process is increased at elevated concentrations of reducing sugars in the blood and in the intracellular environment such as occurs with diabetes. The structural and functional integrity of the affected molecules become perturbed by these modifications and can result in severe consequences.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: January 8, 2002
    Assignee: City of Hope
    Inventors: Samuel Rahbar, Iraj Lalezari
  • Publication number: 20010053857
    Abstract: The synthesis of taxol and other tricyclic and tetracyclic taxanes.
    Type: Application
    Filed: July 17, 2001
    Publication date: December 20, 2001
    Inventors: Robert A. Holton, Carmen Somoza, Hyeong Baik Kim, Mitsuru Shindo, Ronald J. Biediger, P. Douglas Boatman, Chase C. Smith, Feng Liang, Krishna K. Murthi
  • Patent number: 6303606
    Abstract: Described is the use in the treatment of either male or female sexual dysfunction of selective antagonists of the &agr;1B-adrenergic receptor and the pharmaceutical compositions containing them as compounds capable of helping the sexual act avoiding at the same time excessive side effects due to acute hypotension.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: October 16, 2001
    Assignee: Recordati, S.A., Chemical and Pharmaceutical Company
    Inventors: Amedeo Leonardi, Gianni Motta, Rodolfo Testa, Giorgio Sironi
  • Patent number: 6288230
    Abstract: Disclosed are compounds of the formula: or the pharmaceutically acceptable acid addition salts thereof wherein: n is an integer; R1 represents an organic or inorganic group; R2 represents halogen or C1-C6 alkyl; RN is an alkylene carrying a substituted piperazine, piperidine, or tetrahydropyridine; and R4 is hydrogen or C1-C6 alkyl, which compounds are useful for the treatment and/or prevention of neuropsychological disorders including, but not limited to, schizophrenia, mania, dementia, depression, anxiety, compulsive behavior, substance abuse, Parkinson-like motor disorders and motion disorders related to the use of neuroleptic agents.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: September 11, 2001
    Assignee: Neurogen Corporation
    Inventors: Xi Chen, Xiao-shu He
  • Patent number: 6265592
    Abstract: A process for the continuous production of 1,3-dioxolan-2-ones such as ethylene carbonate or propylene carbonate by reacting a corresponding oxirane with carbon dioxide in the liquid phase in the presence of a catalyst comprises conducting the reaction in a two-part reactor in whose first part the reaction is taken with backmixing to a conversion of not less than 80% of the oxirane II and in whose second part the reaction is completed under nonbackmixing conditions, and passing the carbon dioxide in countercurrent to the oxirane II in the entire reactor.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: July 24, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Birnbach, Toni Dockner, Jürgen Mohr, Regina Benfer, Walter Bieg, Jarren Peters, Bernd Ruge, Werner Weinle, Peter Zehner
  • Patent number: 6258962
    Abstract: A process for the synthesis of alkylene carbonates, such as ethylene carbonate, by reacting alkylene oxides with carbon dioxide in the presence of a porous solid support catalyst containing an alkali or alkaline earth metal component.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: July 10, 2001
    Assignee: Mobil Oil Corp.
    Inventors: J. Scott Buchanan, Clarence D. Chang, Robert A. Crane, Lorenzo C. DeCaul, Zhaozhong Jiang, Jose G. Santiesteban, Hye Kyung Cho Timken
  • Patent number: 6235778
    Abstract: Aminoguanidine and alkoxyguanidine compounds, including compounds of the formula: wherein X is O or NR9 and R114 R4, R6-R9, R11, R12, Ra, Rb, Rc, Y, Z, n and mare set forth in the specification, as well as hydrates, solvates or pharmaceutically acceptable salts thereof, that inhibit proteolytic enzymes such as thrombin are described. Also described are methods for preparing the compounds of Formula I. The novel compounds of the present invention are potent inhibitors of proteases, especially trypsin-like serine proteases, such as chymotrypsin, trypsin, thrombin, plasmin and factor Xa. Certain of the compounds exhibit antithrombotic activity via direct, selective inhibition of thrombin, or are intermediates useful for forming compounds having antithrombotic activity.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: May 22, 2001
    Assignee: 3-Dimensional Pharmaceuticals, Inc.
    Inventors: Bruce E. Tomczuk, Richard M. Soll, Tianbao Lu, Cynthia L. Fedde, Carl R. Illig, Thomas P. Markotan, Thomas P. Stagnaro
  • Patent number: 6214870
    Abstract: The present invention relates to dioxocyclopentyl hydroxamide derivatives of the formula wherein X, Z and Q are as defined in the specification, and to pharmaceutical compositions and methods of treatment thereof.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: April 10, 2001
    Assignee: Pfizer Inc
    Inventors: Kim F. McClure, Ralph P. Robinson
  • Patent number: 6180800
    Abstract: Monofluoromethyl ethylene carbonate, difluoromethyl ethylene carbonate and trifluoromethyl ethylene carbonate are provided as novel compounds. These compounds are very useful as solvents because they are chemically and physically stable, have a high dielectric constant, can readily dissolve organic substances and have a wide application temperature range. These compounds have excellent charge and discharge cycle characteristics, have a high flash point, and are safe as non-aqueous elecytrolytes. Hence, batteries using these compounds withstand voltage and have excellent charge and discharge cycle characteristics.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: January 30, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Keiichi Yokoyama, Takako Koiso, Akio Hiwara
  • Patent number: 6143790
    Abstract: There is disclosed a novel amino glycol derivatives of L-N.sup.6 -(1-iminoethyl)lysine, pharmaceutical compositions containing these novel compounds, and to their use in therapy, in particular their use as nitric oxide synthase inhibitors.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: November 7, 2000
    Assignee: G.D. Searle & Co.
    Inventors: E. Ann Hallinan, Foe S. Tjoeng, Kam F. Fok, Timothy J. Hagen, Mihaly V. Toth, Sofya Tsymbalov, Barnett S. Pitzele