Patents Examined by Mary C. Cebulak
  • Patent number: 5670517
    Abstract: The present invention relates to novel compounds of formula (I) which has inhibitory activities against human immunodeficiency virus ("HIV") protease, a process for the preparation thereof, and compositions for prevention or treatment of AIDS by HIV infection comprising the above compounds as active ingredients. ##STR1## wherein: R.sup.1 is an aromatic group, a nitrogen-containing aromatic group, C.sub.1-4 alkyl group optionally substituted with an aromatic group or a nitrogen-containing aromatic group, C.sub.1-4 alkoxy group optionally substituted with an aromatic group or a nitrogen-containing aromatic group;R.sup.2 is an amino acid residue or a C.sub.1-8 alkyl group substituted with a C.sub.1-4 alkylsulfonyl group;R.sup.3 is a C.sub.1-4 alkyl group optionally substituted with an aromatic group;R.sup.4 is hydrogen or a C.sub.1-2 alkyl group;R.sup.5 is a C.sub.1-10 alkyl group optionally substituted with an aromatic group; andn is 1 or 2.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: September 23, 1997
    Assignee: LG Chemical Limited
    Inventors: Nakyen Choy, Hoil Choi, Chi-Hyo Park, Young-Chan Son, Chang-Sun Lee, Heungsik Yoon, Sung-Chun Kim, Jong-Sung Koh, Chung-Ryeol Kim
  • Patent number: 5670519
    Abstract: Modulators of neurotransmitter release including substituted guanidines, N"-aminoguanidines, and N,N'N",N"'-tetrasubstituted hydrazinedicarboximidamides, and pharmaceutical compositions thereof are disclosed. Also disclosed are methods involving the use of such neurotransmitter release modulators for the treatment or prevention of pathophysiologic conditions characterized by the release of excessive or inappropriate levels of neurotransmitters. Also disclosed are screening assays for compounds which selectively inhibit glutamate release. Also disclosed are methods of blocking voltage sensitive sodium and calcium channels in mammalian nerve cells.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 23, 1997
    Assignee: Cambridge NeuroScience, Inc.
    Inventors: Stanley M. Goldin, Subbarao Katragadda, Lain-Yen Hu, N. Laxma Reddy, James B. Fischer, Andrew Gannett Knapp, Lee David Margolin
  • Patent number: 5668168
    Abstract: This invention pertains to a novel group of 1,2-dithiin compounds useful as antiinfective agents, and a novel synthetic process to produce the same. The compounds are particularly effective in treating fungal infections, especially those caused by Candida albicans, Cryptococcus neoformans or Aspergillus fumigatus.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 16, 1997
    Assignees: Shaman Pharmaceuticals, Inc., The Regents of the University of Michigan
    Inventors: Thien V. Truong, Donald E. Bierer, Jeffrey M. Dener, Richard Hector, Michael S. Tempesta, Bernard Loev, Wu Yang, Masato Koreeda
  • Patent number: 5663187
    Abstract: A method of treatment for atherosclerosis and/or reducing cholesterol using an angiotensin II antagonist. This method of treatment can be used in conjunction with the treatment of hypertension. Substituted imidazoles such as ##STR1## are useful as angiotensin II receptor antagonists for this method of treatment. A method of treatment for atherosclerosis and/or reducing cholesterol using an angiotensin II receptor antagonist in combination with an HMG-Co A reductase inhibitor. A method of treatment for atherosclerosis and/or reducing cholesterol using an angiotensin II receptor antagonist in combination with an HMG-Co A reductase inhibitor and an angiotensin converting enzyme inhibitor. Also within the scope of this invention are pharmaceutical compositions for this method of use.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 2, 1997
    Assignee: Merck & Co., Inc.
    Inventors: Edward B. Nelson, Charles S. Sweet
  • Patent number: 5663368
    Abstract: This invention relates to novel diastereomeric acid addition salts of homochiral hydroxylamines, to processes for obtaining such, to processes for the conversion thereof to the corresponding homochiral hydroxylamines, to certain novel homochiral hydroxylamines and the processes for using these as intermediates.
    Type: Grant
    Filed: April 11, 1996
    Date of Patent: September 2, 1997
    Assignee: Smithkline Beecham Corporation
    Inventors: Joseph R. Flisak, Stephen Torey Ross
  • Patent number: 5661176
    Abstract: Disclosed are (2-one (or thione)-1,3-dithiole-4,5-diyl)bis(thiomethylthiocyanate) compounds corresponding to the formula: ##STR1## wherein Z is oxygen or sulfur, compositions containing said compounds and their use as antimicrobial and marine antifouling agents.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: August 26, 1997
    Assignee: The Dow Chemical Company
    Inventors: Duane R. Romer, Weishi W. Wu, Ravi B. Shankar, R. Garth Pews
  • Patent number: 5659070
    Abstract: A process for preparing alkyl 5-oxo-6-heptenoates of the formula I ##STR1## where X and Y are hydrogen or methyl, and R.sup.1 is C.sub.1 -C.sub.8 -alkyl, byA) reacting 5-acetyl-2-norbornene with a dialkyl carbonate [CO(OR.sup.2).sub.2, where R.sup.2 is C.sub.1 -C.sub.4 -alkyl,] in the presence of a base to give an alkyl 3-(2-norbornen-5-yl)-3-oxopropionate II,B) reacting the ester II on the presence of a base with an unsaturated compound of the formula III ##STR2## where Z is CN or CO.sub.2 R.sup.3, where R.sup.3 is C.sub.1 -C.sub.4 -alkyl, and hydrolyzing the product of the reaction of compound II with compound III to a 5-(2-norbornen-5-yl)-5-oxopentanoic acid of the formula IV,C) esterifying the acid IV to give a 5-(2-norbornen-5-yl)-5-oxopentanoic ester of the formula V, andD) converting the ester V by thermal cleavage into an alkyl 5-oxo-6-heptenoate I.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: August 19, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ebel, Matthias Eiermann, Thomas Papkalla
  • Patent number: 5656658
    Abstract: A method is disclosed for the treatment of anxiety by the administration of 3-amino-5-carbamoyl-chromans and 8-fluoro-3-amino-5-carbamoylchromans or enantiomers or salts thereof.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: August 12, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: 5656657
    Abstract: 3-amino-5-carbonylchromans, as well as enantiomers and salts thereof are disclosed. Pharmaceutical compositions containing the compounds as active ingredients are also disclosed. The compounds are useful in the treatment of 5-hydroxytryptamine-mediated disorders of the central nervous system.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: August 12, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: 5652269
    Abstract: Modulators of neurotransmitter release including substituted guanidines, N"-aminoguanidines, and N,N'N",N"'-tetrasubstituted hydrazinedicarboximidamides, and pharmaceutical compositions thereof are disclosed. Also disclosed are methods involving the use of such neurotransmitter release modulators for the treatment or prevention of pathophysiologic conditions characterized by the release of excessive or inappropriate levels of neurotransmitters. Also disclosed are screening assays for compounds which selectively inhibit glutamate release. Also disclosed are methods of blocking voltage sensitive sodium and calcium channels in mammalian nerve cells.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 29, 1997
    Assignee: Cambridge NeuroScience, Inc.
    Inventors: Stanley M. Goldin, Subbarao Katragadda, Lain-Yen Hu, N. Laxma Reddy, James B. Fischer, Andrew Gannett Knapp, Lee David Margolin
  • Patent number: 5650522
    Abstract: Process for the preparation of derivatives having general formula (I) ##STR1## wherein the meaning of R will be defined in the text, characterized by the reaction between a compound having formula ##STR2## wherein X is an halogen, and an alkaline salt of a methyl dialkylmalonate.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: July 22, 1997
    Assignee: Erregierre S.P.A.
    Inventors: Antonio Bonaldi, Massimo Ferrari, Egidio Molinari, Fabrizio Zinetti
  • Patent number: 5650442
    Abstract: The present invention provides a method for sensitizing hypoxic cells in a tumor to radiation, wherein nitric oxide is delivered to target hypoxic cells through the administration of a nitric oxide-containing compound that spontaneously releases nitric oxide under physiological conditions without requiring the presence of oxygen. Also provided are methods of protecting noncancerous cells or tissues in a mammal from radiation, sensitizing cancerous cells in a mammal to chemotherapeutic agents, and protecting noncancerous cells or tissues in a mammal from chemotherapeutic agents, all by administration of the same compounds.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: July 22, 1997
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: James B. Mitchell, Angelo Russo, Murali C. Krishna, David A. Wink, Jr., James E. Liebmann
  • Patent number: 5648535
    Abstract: A process for the production of N-acylaminophenols by the concurrent hydrogenation of a nitrophenol to an aminophenol and the acylation of the aminophenol with acyl anhydride takes place on a continuous basis in a stirred tank reactor in which liquid product is continuously withdrawn from the reactor. Of particular interest is the manufacture of acetaminophen, N-acetyl-p-aminophenol by continuous reaction of p-ntirophenol, hydrogen and acetic anhydride.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: July 15, 1997
    Assignee: Hoechst Celanese Corp.
    Inventors: James A. Foster, Werner H. Mueller, Debra A. Ryan, Hartmut Wiezer
  • Patent number: 5648537
    Abstract: The invention relates to a new process for the synthesis of a disubstituted carbodiimide, including a first stage of phosgenation of an N,N'-disubstituted urea in an organic solvent medium.After this first stage ammonia is added to the reaction mixture without preliminary isolation of any intermediate compound.The process is simple, relatively inexpensive and the yield is high.Disubstituted carbodiimides are organic synthesis intermediates used especially in pharmaceutical chemistry as coupling agents in peptide synthesis.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: July 15, 1997
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Patricia Hussenet, Philippe Le Goff, Gerard Sennyey
  • Patent number: 5648062
    Abstract: Water soluble microbubble generating microparticle contrast agents which are comprised of a carbohydrate and a non-triglyceride, non-surface active material for use in image enhancement wherein the non-surface active material is less soluble in water than the carbohydrate.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 15, 1997
    Assignee: Nycomed Imaging AS
    Inventors: Jo Klaveness, Pal Rongveo, Lars Stubberud
  • Patent number: 5646309
    Abstract: Compounds of the formula ##STR1## are disclosed. These compounds are employed as intermediates in the synthesis of aminochroman compounds useful in the treatment of CNS disorders.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 8, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: 5646153
    Abstract: This invention relates to bis mono- and/or bicyclic aryl and/or heteroaryl compounds exhibiting protein tyrosine kinase inhibition activity. More specifically, it relates to the method of inhibiting abnormal cell proliferation in a patient suffering from a disorder characterized by such proliferation comprising the administration thereto of an EGF and/or PDGF receptor inhibiting effective amount of said bis mono- and/or bicyclic aryl and/or heteroaryl compound and to the preparation of said compounds and their use in pharmaceutical compositions used in this method.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: July 8, 1997
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Alfred P. Spada, Michael R. Myers, Martin P. Maguire, Paul E. Persons
  • Patent number: 5641807
    Abstract: A method is disclosed for the treatment of depression by the administration of 3-amino-5-carbamoylchromans and 8-fluoro-3-amino-5-carbamoylchromans or enantiomers or salts thereof.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: June 24, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: 5641783
    Abstract: Disclosed are compounds having a straight or branched aliphatic hydrocarbon structure of formula I: ##STR1## In formula I, n is an integer from one to four and m is an integer from four to twenty. Independently, R.sub.1 and R.sub.2 are hydrogen, a straight or branched chain alkyl, alkenyl or alkynyl of up to twenty carbon atoms in length or --(CH.sub.2).sub.w R.sub.5. If R.sub.1 or R.sub.2 is --(CH.sub.2).sub.w R.sub.5, w may be an integer from one to twenty and R.sub.5 may be an hydroxyl, halo, C.sub.1-8 alkoxyl group or a substituted or unsubstituted carbocycle or heterocycle. Alternatively, R.sub.1 and R.sub.2 may jointly form a substituted or unsubstituted, saturated or unsaturated heterocycle having from four to eight carbon atoms, N being a hetero atom of the resulting heterocycle. R.sub.3 may be either hydrogen or C.sub.1-3. In the compounds, a total sum of carbon atoms comprising R.sub.1 or R.sub.2, (CH.sub.2).sub.n and (CH.sub.2).sub.m does not exceed forty. R.sub.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: June 24, 1997
    Assignee: Cell Therapeutics, Inc.
    Inventors: J. Peter Klein, Gail E. Underiner, Anil M. Kumar
  • Patent number: 5639758
    Abstract: A method for the treatment of a cutaneous, ocular, or mucosal pathological condition which is associated with immune response in a human or other mammal, that includes topical application of an effective amount of spiperone or a spiperone derivative or its pharmaceutically acceptable salt, in a pharmaceutically-acceptable diluent or carrier for topical application.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: June 17, 1997
    Assignee: Beth Israel Deaconess Medical Center, Inc.
    Inventors: Richard J. Sharpe, Kenneth A. Arndt, Stephen J. Galli