Patents Represented by Attorney Martin F. Savitzky
  • Patent number: 5231198
    Abstract: This invention relates to the stereospecific process for the preparation, separation and purification of hexahydrodibenzofurans which are used in the preparation of the 5HT.sub.3 compounds. More specifically, the present invention relates to a process for the preparation of substantially optically pure cishexahydrodibenzofuran compounds including at least two chiral fused ring centers which comprises the acidic catalyzed stereospecific ring closure by the intra-molecular inversion of a gamma, i.e. 2', carbon atom of a 2-[(2'-leaving group)cycloalkyl]phenol.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: July 27, 1993
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Mattew R. Powers, Frederick A. Golec
  • Patent number: 5217982
    Abstract: This invention relates to compounds which are derivatives of cyclopentane which are useful as antihypertensive agents, to pharmaceutical compositions including such compounds, and to their use in treating hypertension.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: June 8, 1993
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Cynthia A. Fink, Alfred P. Spada
  • Patent number: 5218138
    Abstract: This invention is directed to a method for stereoselectively preparing a syn-dihydroxylated compound comprising reacting a 3-hydroxyket-1-one and a sterically hindered dialkylated borane to form a complex at about -50.degree. C. to about 0.degree. C., and reducing the complex with hydride at about -25.degree. C. to about 50.degree. C.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: June 8, 1993
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Fang-Ting Chiu, William L. Studt
  • Patent number: 5216015
    Abstract: This invention relates to compounds which are steroidyl derivatives of 4-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-one and the corresponding ring-opened hydroxy acid form thereof which are useful as antihypercholesterolemic agents, to pharmaceutical compositions including such compounds, and to their use in treating hypercholesterolemia.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: June 1, 1993
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Daniel G. McGarry, Francis A. Volz, John R. Regan, Michael N. Chang
  • Patent number: 5210208
    Abstract: Monocyclic and bicyclic aryl ring compounds having selective LTB.sub.4 properties and comprising two ring substituents, the first substituent comprising a lipophilic group and a terminal carboxylic acid or derivative group, and the second substituent comprising an amido group, therapeutic compositions and methods of treatment of disorders which result from LTB.sub.4 activity using the mono- and bicyclic aryl compounds are disclosed.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: May 11, 1993
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Fu-Chih Huang, Wan K. Chan, Charles A. Sutherland, Robert A. Galemmo, Jr., Michael N. Chang
  • Patent number: 5202246
    Abstract: Disclosed are methods of inactivating pyrogen producing organisms and pyrogenic substances in immobilized solid matrices which are used in the production and/or purification of biomedical and pharmaceutical products and materials by contacting the solid matrices with pyrogen inactivating solutions.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: April 13, 1993
    Assignee: Armour Pharmaceutical Company
    Inventors: Robert Kruse, Sudhish Chandra, Fred Feldman
  • Patent number: 5162110
    Abstract: In a method in which an ionizable pharmaceutical material, such as theophylline, having a pharmaceutically-active anionic group is bonded to an anion exchange resin having cationic groups bonded to displacable anionic groups by bringing said material and said resin into contact with each other under conditions such that the pharmaceutically-active anionic group of said material is bonded to the cationic group of said resin and replaces the anionic group thereof, the improvement comprising effecting said contact in an environment which is substantially free of carbon dioxide and/or bicarbonate ion, a pharmacologically active composition comprising said pharmaceutically active anion and said resin, including a composition in which at least about 40% of the binding capacity of the resin comprises said pharmaceutically active anion, and a sustained release pharmaceutical composition, including enteric coated particles of the composition, and stabilizing said composition by maintaining it in an environment substan
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: November 10, 1992
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Mark P. Warchol, Zofia J. Chrzan
  • Patent number: 5162336
    Abstract: Disclosed are tetrahydro-pyrido-indoles having the general formula ##STR1## which are antagonists towards the neuropeptides cholexystokinin and gastrin processing valuable activities for the treatment of cholecystokinin or gastrin-related disorders of the gastrointestinal, central nervous and appetite regulatory systems and their pharmaceutical compositions and processes for their preparation.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: November 10, 1992
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Bruce F. Molino, Paul R. Darkes, William R. Ewing
  • Patent number: 5149637
    Abstract: New fragments of the Factor VIII procoagulant protein (Factor VIIIC) are disclosed. These fragments have an Mr value of 88,000 d or 49,000 d or extend from amino acid residues 1974 to 2332 or 2052 to 2332. These fragments have use in the treatment of patients who have developed antibodies which inhibit Factor VIII.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: September 22, 1992
    Assignees: Scripps Clinic & Research Foundation, Rorer Biotechnology Inc.
    Inventors: Dorothea H. Scandella, William N. Drohan, Theodore S. Zimmerman, Carol A. Fulcher
  • Patent number: 5132312
    Abstract: Disclosed are novel 3-hydroxy-3-methylglutarylcoenzyme A reductase inhibitors useful as antihypercholesterolemic agents represented by the formula ##STR1## and the corresponding ring-opened hydroxy acids derived therefrom and pharmaceutically acceptable salts thereof.Pharmaceutical compositions containing said compounds and method of inhibiting the biosynthesis of cholesterol therewith are also disclosed.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: July 21, 1992
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: John R. Regan, Kent E. Neuenschwander
  • Patent number: 5125466
    Abstract: An aerosol spray dispenser of flowable pharmaceutical product is provided with a flotation stabilizing arrangement such that it will float in water in a stabilized erect position even when empty of product; a scale is associated with the dispenser so that the depth at which it floats can be read by comparing the position of the surface of the water in which it floats with graduations on the scale. The stabilizing action may be obtained by placing the dispenser in a floatable bottom-weighted vial, with the scale located in the exterior of the vial, and the combination of vial and dispenser then floated in water. In other embodiments the vial need not be used, in which case the dispenser itself may be bottom-weighted to assure its stabilized erect flotation and the scale placed on the exterior of the dispenser; or, a cap may be provided for the dispenser which is positioned on the dispenser while both are floated in the water, the cap being top-weighted so that the assembly floats stably upside-down.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: June 30, 1992
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: George R. Felt, Donna K. Multhauf, Sudhakar S. Wagle
  • Patent number: 5114964
    Abstract: Disclosed are novel aryl-substituted benzocycloalkyl-derived 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors useful as antihypercholesterolemic agents represented by the formula: ##STR1## their corresponding dihydroxy acids, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: May 19, 1992
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventor: Jeffrey N. Barton
  • Patent number: 5086179
    Abstract: This invention is directed to certain dibenzofurancarboxamides and dibenzofurancarboxamide acids and their use as 5HT.sub.3 antagonists having unique CNS, anti-emetic and gastric prokinetic activity void of any significant D.sub.2 receptor binding properties. Further, this invention relates to a process for the synthesis of stereoisomeric compounds having such CNS, anti-emetic and gastric prokinetic activity.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: February 4, 1992
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Matthew R. Powers, Raymond D. Youssefyeh, William L. Studt, Frederick A. Golec
  • Patent number: 5063230
    Abstract: This invention relates to a series of bicyclic benzomonoazacyclic carboxamide compounds of the general formula: ##STR1## Where Z is tertiary amine, which are useful for the method of treating patients suffering from gastrointestinal disorders, and of pharmaceutical composition including an effective 5HT3 - antagonists amount of said compounds therein.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: November 5, 1991
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Jeffrey C. Pelletier, Raymond D. Youssefyeh, Henry F. Campbell
  • Patent number: 5059610
    Abstract: This invention relates to quinolinyl-diaryl compounds and their use as leukotriene D.sub.4 antagonists for the treatment of hypersensitive disorders.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: October 22, 1991
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Fu-Chi Huang, Robert A. Galemmo, Jr., Henry F. Campbell
  • Patent number: 5041453
    Abstract: This invention relates to certain quinolinyl-benzoheterobicyclic compounds and their use as valuable pharmaceutical agents, particularly as lipoxygenase inhibitors and/or leukotriene antagonists and/or as mediator release inhibitors useful as anti-inflammatory and anti-allergic agents.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: August 20, 1991
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Fu-Chih Huang, Keith S. Learn, Ashvin V. Gavai
  • Patent number: 5028615
    Abstract: This invention relates to certain quinoline-diaryl compounds and their use as leukotriene D.sub.4 antagonists for the treatment of hypersensitive disorders.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: July 2, 1991
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Fu-Chi Huang, Robert A. Galemmo, Jr., Henry F. Campbell
  • Patent number: 5026709
    Abstract: A method for the preparation of a sustained release pharmaceutical composition comprising forming a fluidized ring of said particles and contacting said particles maintained suspended in said ring with a liquid composition containing a pharmaceutically active material and an alkali-soluble material.
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: June 25, 1991
    Assignee: Rorer Pharmaceutical Corporation
    Inventors: Richard J. Harwood, Gunvant N. Mehta, Ramesh C. Jhawar, Liang-Lii Huang, Wayne M. Grim, Shun P. Li
  • Patent number: 5015638
    Abstract: This invention relates to substituted pyridooxazinone and naphtheridone pyridones which are useful as cardiotonic agents for the treatment of congestive heart failure, to methods for increasing cardiac contractility using said compounds, and pharmaceutical compositions including the same.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: May 14, 1991
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Alfred P. Spada, William L. Studt, Henry F. Campbell, Donald E. Kuhla, Thomas Tucker
  • Patent number: 4946860
    Abstract: Disclosed are novel benzothiopyranyl derivatives as 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors useful as antihypercholesterolemic agents represented by the formula: ##STR1## their corresponding dihydroxy acids, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: August 7, 1990
    Assignee: Rorer Pharmaceutical Corporation
    Inventors: Robert L. Morris, Jeffrey N. Barton