Patents by Inventor David R. Herbst

David R. Herbst has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7601856
    Abstract: The present invention is directed to compounds of Formula I: that are potassium channel modulators and pharmaceutical compositions thereof. The present invention is further directed to methods of treatment using the compounds and pharmaceutical compositions of the invention. The present invention is still further directed to synthetic processes for producing the compounds of the invention.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: October 13, 2009
    Assignee: Wyeth
    Inventors: Gregory S. Welmaker, Matthew A. Wilson, Geraldine McFarlane, Joan E. Sabalski, John A. Butera, Eugene J. Trybulski, David R. Herbst
  • Publication number: 20080027049
    Abstract: The present invention is directed to compounds of Formula I: that are potassium channel modulators and pharmaceutical compositions thereof. The present invention is further directed to methods of treatment using the compounds and pharmaceutical compositions of the invention. The present invention is still further directed to synthetic processes for producing the compounds of the invention.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 31, 2008
    Applicant: WYETH
    Inventors: Gregory S. WELMAKER, Matthew A. WILSON, Geraldine R. McFARLANE, Joan E. SABALSKI, John A. BUTERA, Eugene J. Trybulski, David R. HERBST
  • Patent number: 5872139
    Abstract: The compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are, independently, hydrogen, straight chain alkyl, branched chain alkyl, cycloalkyl, bicycloalkyl or aralkyl, wherein the aromatic moiety of the aralkyl group may be optionally substituted with one to three straight chain alkyl, halogen, nitro, cyano, alkoxy, alkoxycarbonyl, trifluoromethyl or trifluoromethoxy groups; R.sub.3 is hydrogen, formyl, alkanoyl, alkenoyl, alkylsulfonyl, aroyl, arylalkenoyl, arylsulfonyl, arylalkanoyl or arylalkylsulfonyl; A is selected from the group consisting of: ##STR2## wherein n is 0 or 1; R.sub.4, R.sub.5 and R.sub.6 are, independently, cyano, nitro, amino, alkyl, perfluoroalkyl, alkoxy, perfluoroalkoxy, alkylamino, dialkylamino, sulfamyl, alkylsulfonamido, arylsulfonamido, alkylcarboxamido, arylcarboxamido, alkanoyl, alkylsulfonyl, perfluoroalkylsulfonyl, arylsulfonyl, chloro, bromo, fluoro, iodo, 1-imidazolyl, carboxyl or hydrogen; or a pharmaceutically acceptable salt thereof, relax smooth muscles.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: February 16, 1999
    Assignee: American Home Products Corporation
    Inventors: David R. Herbst, John A. Butera, Russell F. Graceffa
  • Patent number: 5780505
    Abstract: The compounds of the formula: ##STR1## wherein R.sub.1 is straight chain alkyl, branched chain alkyl, cycloalkyl, hydroxyalkyl, fluoroalkyl or polyfluoroalkyl; R.sub.7 and R.sub.8 are, independently, hydrogen or an acyl substituent selected from the group consisting of formyl, alkanoyl, alkenoyl, alkoxycarbonyl, alkylsulfonyl, aroyl, arylalkenoyl, arylsulfonyl, arylalkanoyl or arylalkylsulfonyl; A is a phenyl group with either two or three substituents of the following formula: ##STR2## wherein the positions of substitution are R.sub.2,R.sub.3 -, R.sub.2,R.sub.4 -, R.sub.2,R.sub.5 -, R.sub.2,R.sub.6 -, R.sub.3,R.sub.4 -, R.sub.3,R.sub.5 -, and R.sub.2,R.sub.4,R.sub.6 - and R.sub.2 is methyl, ethyl, fluoro, chloro, methoxy or trifluoromethyl; R.sub.3 is methyl, ethyl, fluoro, chloro, methoxy or trifluoromethyl; R.sub.4 is methyl, fluoro, bromo, methoxy or cyano; R.sub.5 is methyl, fluoro, chloro, methoxy, cyano or trifluoromethyl; R.sub.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: July 14, 1998
    Assignee: American Home Products Corporation
    Inventors: Madelene M. Antane, David R. Herbst, Geraldine R. McFarlane, Eric G. Gundersen, Bradford H. Hirth, Dominick A. Quagliato, Russell F. Graceffa, John A. Butera
  • Patent number: 5763474
    Abstract: The compounds of the formula: ##STR1## wherein R.sub.1 is straight chain alkyl, branched chain alkyl cycloalkyl, hydroxyalkyl, fluoroalkyl or polyfluoroalkyl; R.sub.2 and R.sub.3 are, independently, hydrogen or an acyl substituent selected from the group consisting of formyl, alkanoyl, alkenoyl, alkoxycarbonyl, alkylsulfonyl, aroyl, arylalkenoyl, arylsulfonyl, arylalkanoyl or arylalkylsulfonyl; A is a substituted phenyl group of the following formula: ##STR2## wherein R.sub.4 and R.sub.5 are, independently, cyano, nitro, amino, alkyl, perfluoroalkyl, fluoroalkyl, alkoxy, perfluoroalkoxy, fluoroalkoxy, amino, alkylamino, dialkylamino, sulfamyl, alkylsulfonamido, arylsulfonamido, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, alkylcarboxamido, arylcarboxamido, alkylsulfonyl, perfluoroalkylsulfonyl, arylsulfonyl, chloro, bromo, fluoro, iodo, 1-imidazolyl, carboxyl or hydrogen, with the proviso that R.sub.4 and R.sub.5 cannot both be hydrogen; or a pharmaceutically acceptable salt thereof, relaxes smooth muscles.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: June 9, 1998
    Assignee: American Home Products Corporation
    Inventors: David R. Herbst, Madelene M. Antane, Geraldine R. McFarlane, Eric G. Gundersen, Bradford H. Hirth, Dominick A. Quagliato, Russell F. Graceffa, John A. Butera
  • Patent number: 3943148
    Abstract: Substituted 1,2,4,5,6,7,8,9-octahydro-3H-azecino[5,4-b]-indoles and substituted 1,2,3,4,5,6,7,8-octahydroazonino[5,4-b]-indoles are prepared by cleavage of the corresponding quaternary alkyl iodide salts with lithium in liquid ammonia. The products possess diuretic activity.
    Type: Grant
    Filed: August 10, 1972
    Date of Patent: March 9, 1976
    Assignee: American Home Products Corporation
    Inventors: David R. Herbst, Herchel Smith