Patents Represented by Attorney, Agent or Law Firm Irving Newman
  • Patent number: 6288066
    Abstract: Disclosed are polyhydroxybutylpyrazines of the general formula Including their isomers, racemates, enantioners and salts thereof, as well as processes for preparing these compounds and medicaments containing them.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: September 11, 2001
    Assignee: Aventis Pharma S.A.
    Inventors: Georges Bashiardes, Jean-Christophe Carry, Michel Evers, Bruno Filoche, Serge Mignani
  • Patent number: 6281227
    Abstract: The compounds of formula I herein exhibit useful pharmacological activity and accordingly are incorporated into pharmaceutical compositions and used in the treatment of patients suffering from certain medical disorders. More specifically, they are inhibitors of the activity of Factor Xa. The present invention is directed to compounds of formula I, compositions containing compounds of formula I, and their use, for treating a patient suffering from, or subject to, a physiological condition which can be ameliorated by the administration of an inhibitor of the activity of Factor Xa.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: August 28, 2001
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Yong Mi Choi-Sledeski, Heinz W. Pauls, Jeffrey N. Barton, William R. Ewing, Daniel M. Green, Michael R. Becker, Yong Gong, Julian Levell
  • Patent number: 6277865
    Abstract: This invention is directed to a compound of formula I which is useful for inhibiting the activity of Factor Xa, by combining said compound with a composition containing Factor Xa. The present invention is also directed to compositions containing compounds of the formula I, methods for their preparation, their use, such as in inhibiting the formation of thrombin or for treating a patient suffering from, or subject to, a disease state associated with a physiologically detrimental excess amount of thrombin.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: August 21, 2001
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Scott I. Klein, Kevin R. Guertin
  • Patent number: 6274705
    Abstract: The present invention relates to azacycloalkylalkanoyl peptides and pseudopeptides which inhibit platelet aggregation and thrombus formation thereby being useful in the prevention and treatment of thrombosis associated with disease states such as myocardial infarction, stroke, peripheral arterial disease, and disseminated intravascular coagulation, to methods for the prevention or treatment of thrombosis in a mammal in need of such therapy comprising the administration of a therapeutically effective amount of such compounds, and to pharmaceutical compositions comprising such compounds.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: August 14, 2001
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Scott I. Klein, Bruce F. Molino
  • Patent number: 6255326
    Abstract: This invention is directed to the pharmaceutical use of phenyl compounds, which are linked to an aryl moiety by various linkages, for inhibiting tumor necrosis factor. The invention is also directed to the compounds, their preparation and pharmaceutical compositions containing these compounds. Furthermore, this invention is directed to the pharmaceutical use of the compounds for inhibiting cyclic AMP phosphodiesterase.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: July 3, 2001
    Assignee: Aventis Pharma Limited
    Inventors: Michael John Ashton, David Charles Cook, Garry Fenton, Susan Jacqueline Hills, Ian Michael McFarlane, Andrew David Morley, Malcolm Norman Palfreyman, Andrew James Ratcliffe, Brian William Sharp, Sukanthini Thurairatnam, Bernard Yvon Jack Vacher, Nigel Vicker
  • Patent number: 6248841
    Abstract: A novel process has been developed for the treatment of crosslinked ethylene-propylene diene monomer (EPDM) elastomer material to decrease its residual peroxide levels. EPDM is used to form the seats and neck gaskets of metering valves used in metered-dose inhalers (MDI). For filled and inverted MDI units these EPDM components are in direct contact with the pharmaceutical formulation media. The process involves exposing the EPDM valve components to a solution of 2-mercaptoethanol, a chemical reducing agent. The 2-mercaptoethanol greatly diminishes the residual peroxide levels in EPDM by reducing the peroxide functional groups to the corresponding hydroxyl groups. EPDM components treated in this manner have demonstrated very low peroxide levels and, consequently, greatly improved compatibility with the pharmaceutical formulation in the inhaler. An advantage of this approach is that the treated EPDM would likely retain its favorable physical properties and its good performance in metering valves.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: June 19, 2001
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Karl M. Gelotte, Joseph D'Silva
  • Patent number: 6245760
    Abstract: This invention is directed to quinoline/quinoxaline compounds which inhibit platelet-derived growth factor or p56lck tyrosine kinase activity, to pharmaceutical compositions comprising these compounds, and to the use of these compounds for treating a patient suffering from or subject to disorders/conditions involving cellular differentiation, proliferation, extracellular matrix production or mediator release and/or T cell activation and proliferation.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: June 12, 2001
    Assignee: Aventis Pharmaceuticals Products, Inc
    Inventors: Wei He, Michael R. Myers, Alfred P. Spada
  • Patent number: 6242603
    Abstract: The present invention relates to a novel process for preparing lysergic acid by isomerizing paspalic acid, using a tetraalkylammonium hydroxide.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: June 5, 2001
    Assignee: Aventis Pharma S.A.
    Inventor: Jean-Claude Gaullier
  • Patent number: 6235909
    Abstract: This invention is directed to methods for the preparation of [1S-[1a,2b,3b,4a(S*)]]-4-[7-[[-(3-chloro-2-thienyl)methyl]propyl]amino]-3 H-imidazo[4,5-b]pyridin-3-yl]]-N-ethyl-2,3-dihydroxycyclopentanecarboxamide, methods for the preparation of intermediates thereto, and to said intermediates themselves.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: May 22, 2001
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Herve Garcia, Patrick Leon, Benoit J. Vanasse
  • Patent number: 6184382
    Abstract: The invention is directed to improved methods for preparing N6-substituted adenosine derivatives, to intermediates useful therefor and to methods of preparing these intermediates.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: February 6, 2001
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Diane C. Salazar, Walter Rodriguez, James P. Sherbine, Rick G. Woodward, Adam W. Sledeski, Matthew R. Powers, Michael K. O'Brien
  • Patent number: 6180759
    Abstract: This invention is directed to a process for preparing a pseudotetrapeptide of formula I or a salt or prodrug thereof wherein is optionally nitrogen protected azaheterocyclyl; is a single or double bond; q is 1-5; B is alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, aralkyl, alkylaryl, or alkylaralkyl; Q2 is H or a carboxylic acid protecting group; J is —H, alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, substituted aryl, aralkyl, substituted aralkyl; L is OR1, or NR1R2, where R1 and R2 are independently —H, alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, aralkyl, alkylaryl or alkylaralkyl; and p is 1 or 2 which comprises the coupling of two dipeptides or psuedopeptides.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: January 30, 2001
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: James J. Mencel, Robert Stammler, Christophe Daubie, Michel Lavigne, Benoit J. Vanasse, Robert C. Liu, Patrick Leon, Geoffrey A. D'Netto, Adam W. Sledeski
  • Patent number: 6180632
    Abstract: This invention is directed to quinoline/quinoxaline compounds which inhibit platelet-derived growth factor or p56lck tyrosine kinase activity, to pharmaceutical compositions comprising these compounds, and to the use of these compounds for treating a patient suffering from or subject to disorders/conditions involving cellular differentiation, proliferation, extracellular matrix production or mediator release and/or T cell activation and proliferation.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: January 30, 2001
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Michael R. Myers, Wei He, Alfred P. Spada, Martin P. Maguire
  • Patent number: 6162792
    Abstract: Gastrointestinal disorders involving Helicobacter pylorid are treated by administering spiramycin or spiramycin/metronidazole combinations. In addition, administration of anti-ulcer agents may be carried out before, during or after such administration of spiramycin or spiramycin/metronidazole combinations. Pharmaceutical compositions for such administrations are also disclosed.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: December 19, 2000
    Assignee: Aventis Pharma S.A.
    Inventors: Erik T. Forfang, Sven-Erik Larssen
  • Patent number: 6159978
    Abstract: This invention is directed to quinoline/quinoxaline compounds which inhibit platelet-derived growth factor tyrosine kinase and/or Lck tyrosine kinase, to pharmaceutical compositions comprising these compounds, and to the use of these compounds for treating a patient suffering from or subject to disorders/conditions involving cellular differentiation, proliferation, extracellular matrix production or mediator release and/or T cell activation and proliferation.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: December 12, 2000
    Assignee: Aventis Pharmaceuticals Product, Inc.
    Inventors: Michael R. Myers, Alfred P. Spada, Paul E. Persons, Martin P. Maguire
  • Patent number: 6153588
    Abstract: The invention is directed to a non-hygroscopic stable crystalline form of the antithrombotic compound N-[N-[N-(4-piperdin-4-yl)butanoyl)-N-ethylglycyl]-(L)-aspartyl]-(L)-.beta. -cyclohexyl-alanine amide, to processes for preparing said stable crystalline form, to a pharmaceutical composition thereof, and intermediates thereof, and the invention is directed also to processes for preparing a compound of the formula ##STR1## wherein: A, B, Z, E.sup.1, E.sup.2, G, R, m, n, and p are as defined herein.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: November 28, 2000
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Zofia J. Chrzan, James J. Mencel, David Toledo-Velasquez, Vincent Windisch, Rick G. Woodward, Diane C. Salazar, deceased, Narasimha M. Vemuri, Anthony J. Gardetto, Matthew R. Powers, Gregory G. Kubiak, Robert C. Liu, Benoit J. Vanasse, James P. Sherbine, Walter Rodriguez, Adam W. Sledeski
  • Patent number: 6143894
    Abstract: This invention is directed to methods for the preparation of [1S-[1a,2b,3b,4a(S*)]]-4-[7-[[1-(3-chloro-2-thienyl) methyl]propyl]amino]-3H-imidazo[4,5-b]pyridin-3-yl]-N-ethyl-2,3-dihydroxyc yclopentanecarboxamide, methods for the preparation of intermediates thereto, and to said intermediates themselves.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: November 7, 2000
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Michael K. O'Brien, Herve Garcia, Patrick Leon, Tory H. Powner, Laurence W. Reilly, Harshavadan C. Shah, Michael D. Thompson, Ching T. Tsuei, Benoit J. Vanasse, Francis L. Walther
  • Patent number: 6138673
    Abstract: An inhalation device comprising a chamber having an inlet and an outlet; and an active substance reservoir, wherein the device further includes vacuum means for forming a vacuum in the chamber and valve means arranged to release the vacuum, so that the substance contained in the reservoir is dispersed in the chamber on release of the vacuum.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: October 31, 2000
    Assignee: Fisons Limited
    Inventor: Michael Trevor Shepherd
  • Patent number: 6139870
    Abstract: Stabilized nanoparticles capable of being filtered under sterile conditions and including at least one hydrophobic, water-insoluble and non-water-dispersible polymer or copolymer (and optionally an active principle) emulsified in a solution of phospholipids and an oleic acid salt.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: October 31, 2000
    Assignee: Aventis Pharma SA
    Inventor: Thierry Verrecchia
  • Patent number: 6140504
    Abstract: Compounds of the formula: ##STR1##
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: October 31, 2000
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Scott I. Klein, Kevin R. Guertin, Alfred P. Spada
  • Patent number: 6127515
    Abstract: This invention is directed to a functionalized amino resin of formula ##STR1## wherein S is a solid support; R is H or alkyl; A is ##STR2## Y is OH or OCOR.sup.1 ; and R.sup.1 is aliphatic or aromatic which is useful for the solid phase synthesis of amides, peptides and hydroxamic acids.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: October 3, 2000
    Assignee: Aventis Pharmaceuticals Products Inc.
    Inventors: Franco Manfre, Benoit J. Vanasse, Richard F. Labaudiniere, George C. Morton