Patents by Inventor Richard E. Mewshaw

Richard E. Mewshaw 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: 5962465
    Abstract: The compounds of formula I: ##STR1## wherein R.sup.1 and R.sup.2 are, independently, hydrogen, alkyl, phenyl or benzyl; or R.sup.1 and R.sup.2, taken together, are benzylidene optionally substituted with R.sup.3 as defined below or alkylidene, or R.sup.1 and R.sup.2, taken together with the carbon to which they are attached, form a carbonyl moiety or a cycloalkyl group; R.sup.3 is hydrogen, hydroxy, halo, trifluoromethyl, trifluoromethoxy, alkyl, alkoxy, aralkoxy, alkanoyloxy, amino, mono- or di-alkylamino, alkanamido or alkanesulfonamido; R.sup.4 is hydrogen or alkyl; m is an integer 0, 1 or 2; n is an integer from 0 to 6, inclusive; Z is hydrogen, hydroxy, alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, polycyclo-alkyl, phenyl optionally substituted with R.sup.3 as defined above, phenoxy optionally substituted with R.sup.3 as defined above, naphthyl optionally substituted with R.sup.3 as defined above or naphthyloxy optionally substituted with R.sup.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: October 5, 1999
    Assignee: American Home Products Corporation
    Inventors: Gary P. Stack, Richard E. Mewshaw, Byron A. Bravo, Young H. Kang
  • Patent number: 5756532
    Abstract: The compounds of formula I: ##STR1## wherein R.sup.1 and R.sup.2 are, independently, hydrogen, alkyl, phenyl or benzyl; or R.sup.1 and R.sup.2, taken together, are benzylidene optionally substituted with R.sup.3 as defined below or alkylidene, or R.sup.1 and R.sup.2, taken together with the carbon to which they are attached, form a carbonyl moiety or a cycloalkyl group; R.sup.3 is hydrogen, hydroxy, halo, trifluoromethyl, trifluoromethoxy, alkyl, alkoxy, aralkoxy, alkanoyloxy, amino, mono- or di-alkylamino, alkanamido or alkanesulfonamido; R.sup.4 is hydrogen or alkyl; m is an integer 0, 1 or 2; n is an integer from 0 to 6, inclusive; Z is hydrogen, hydroxy, alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, polycyclo-alkyl, phenyl optionally substituted with R.sup.3 as defined above, phenoxy optionally substituted with R.sup.3 as defined above, naphthyl optionally substituted with R.sup.3 as defined above or naphthyloxy optionally substituted with R.sup.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: May 26, 1998
    Assignee: American Home Products Corporation
    Inventors: Gary P. Stack, Richard E. Mewshaw, Byron A. Bravo, Young H. Kang
  • Patent number: 5756521
    Abstract: Compounds of the formula: ##STR1## in which n is one of the integers 1, 2, 3 or 4, or a pharmaceutically acceptable salt thereof, are inhibitors of dopamine synthesis and release, useful in the treatment of schizophrenia, Parkinson's Disease, Tourette's Syndrome, alcohol addiction, cocaine addiction, and addiction to analogous drugs.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: May 26, 1998
    Assignee: American Home Products Corporation
    Inventor: Richard E. Mewshaw
  • Patent number: 5750556
    Abstract: Compounds of Formula I are selective autoreceptor agonists useful in treating disease states involving hyperactivity of dopamine systems: ##STR1## in which X is --(CH.sub.2).sub.n --; n is 1-3; R.sub.1 is hydrogen, alkyl, hydroxyalkyl, cycloalkyl-methyl, bicyclo-alkylmethyl or --(CH.sub.2).sub.m YAr; where m is 0-4, Y is --CH.sub.2 --, and Ar is phenyl, halophenyl, alkylphenyl, dialkylphenyl or alkoxyphenyl; R.sub.2 is hydrogen or alkyl; R.sub.3 is hydrogen, halogen, alkyl, alkoxy or hydroxy; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: May 12, 1998
    Assignee: American Home Products Corporation
    Inventors: Richard E. Mewshaw, Gary P. Stack
  • Patent number: 5684039
    Abstract: Compounds of the formula: ##STR1## in which R is a straight or branched chain alkyl group of 1 to 6 carbon atoms, hydroxyalkyl of 1 to 6 carbon atoms or a cycloalkyl group of 3 to 8 carbon atoms; or a pharmaceutically acceptable salt thereof are inhibitors of dopamine synthesis and release, useful in the treatment of schizophrenia, Parkinson's Disease, Tourette's Syndrome, alcohol addiction, cocaine addiction, and addiction to analagous drugs.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: November 4, 1997
    Assignee: American Home Products Corporation
    Inventor: Richard E. Mewshaw
  • Patent number: 5670667
    Abstract: Compounds of the formula: ##STR1## in which Z is hydrogen or a halogen; n is one of the integers 1, 2, 3, or 4; m is one of the integers 0 or 1; R is a substituted or unsubstituted aryl group in which the substituents are, independently, one or two members selected from the group consisting of alkyl, hydroxy, halo or amino groups; R.sup.2 is hydrogen or alkyl; or a pharmaceutically acceptable salt thereof, are inhibitors of dopamine synthesis and release, useful in the treatment of schizophrenia, Parkinson's Disease, Tourette's Syndrome, alcohol addiction, cocaine addiction, and addiction to analagous drugs.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: September 23, 1997
    Assignee: American Home Products Corporation
    Inventor: Richard E. Mewshaw
  • Patent number: 5663194
    Abstract: Described herein are compounds of the formula: ##STR1## in which n is 1, 2 or 3; m is 0 or 1; and R is a substituted or unsubstituted phenyl group in which the substitutents are, independently, one or two members selected from the group consisting of alkyl, hydroxy, halo or amino groups or R is alkyl of 1 to 6 carbon atoms or hydroxyalkyl of 1 to 6 carbon atoms; or a pharmaceutically acceptable salt thereof, which are inhibitors of dopamine synthesis and release, and are useful in the treatment of schizophrenia, Parkinson's Disease, Tourette's Syndrome, alcohol addiction, cocaine addiction, and addiction to analagous drugs.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: September 2, 1997
    Inventor: Richard E. Mewshaw
  • Patent number: 5602151
    Abstract: The compounds of the formula: ##STR1## in which X is ##STR2## where R.sup.7 is hydrogen, alkyl, hydroxy, alkanoyloxy, hydroxyalkyl, hydroxycarbonyl, alkoxycarbonyl, phenyl or substituted phenyl, in which the substituent is alkyl, alkoxy, halo, nitro, cyano, haloalkyl, perhaloalkyl or dialkylaminoalkyl; R.sup.8 is hydrogen or alkyl or R.sup.7 and R.sup.8 taken together are polymethylene; R.sup.9 is hydrogen, alkyl, phenyl or substituted phenyl, in which the substituent is alkyl, alkoxy, halo, nitro, cyano or perhaloalkyl; R.sup.10 is hydrogen, alkyl or gemdialkyl; n is one of the integers 0, 1 or 2; and R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are, independently, hydrogen, alkyl, alkoxy, halo, nitro, cyano or perhaloalkyl, alkoxycarbonyl or hydroxycarbonyl; and when X is --NR.sup.9 -- or R.sup.7 is an amino alkyl group, a pharmaceutically acceptable salt thereof; are useful as inhibitors of cholesterol ester hydrolase.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: February 11, 1997
    Assignee: American Home Products Corporation
    Inventors: Richard E. Mewshaw, Thomas J. Commons, Donald P. Strike
  • Patent number: 5541199
    Abstract: Compounds of the formula: ##STR1## in which n is one of the integers 1, 2, 3,or 4; m is one of the integers 0 or 1; R is ##STR2## or a pharmaceutically acceptable salt thereof, are inhibitors of dopamine synthesis and release, useful in the treatment of schizophrenia, Parkinson's Disease, Tourette's Syndrome, alcohol addiction, cocaine addiction, and addiction to analagous drugs.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 30, 1996
    Assignee: American Home Products Corporation
    Inventor: Richard E. Mewshaw
  • Patent number: 5512565
    Abstract: The compounds of the formula: ##STR1## in which ##STR2## where R.sup.7 is hydrogen, alkyl, hydroxy, alkanoyloxy, hydroxyalkyl, hydroxycarbonyl, alkoxycarbonyl, phenyl or substituted phenyl, in which the substituent is alkyl, alkoxy, halo, nitro, cyano, haloalkyl, perhaloalkyl or dialkylaminoalkyl; R.sup.8 is hydrogen or alkyl or R.sup.7 and R.sup.8 taken together are polymethylene; R.sup.9 is hydrogen, alkyl, phenyl or substituted phenyl, in which the substituent is alkyl, alkoxy, halo, nitro, cyano or perhaloalkyl; R.sup.10 is hydrogen, alkyl or gemdialkyl; n is one of the integers 0, 1 or 2; and R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are, independently, hydrogen, alkyl, alkoxy, halo, nitro, cyano or perhaloalkyl, alkoxycarbonyl or hydroxycarbonyl; and when X is --NR.sup.9 -- or R.sup.7 is an amino alkyl group, a pharmaceutically acceptable salt thereof; are useful as inhibitors of cholesterol ester hydrolase.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: April 30, 1996
    Assignee: American Home Products Corporation
    Inventors: Richard E. Mewshaw, Thomas J. Commons, Donald P. Strike
  • Patent number: 5401769
    Abstract: A compound of formula A: ##STR1## wherein R.sup.1 and R.sup.2 are, independently, hydrogen, fluorine, chlorine, bromine, iodine, trifluoromethyl, cyano, nitro, alkyl, alkoxy, --CO.sub.2 H, alkylcarbonyl, alkylcarbonyloxy, alkoxycarbonyl, alkoxycarbonyloxy, mono or dialkylaminocarbonyl, or mono or dialkylaminocarbonyloxy; R.sup.3 is hydrogen or alkyl; R.sup.4 is alkyl, cycloalkylalkyl or phenylalkyl or substituted phenylalkyl, and the substituent on the benzene ring is alkyl, alkoxy, halo, nitro, cyano, trifluoromethyl or phenyl, are anti-cholesterolemic agents.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: March 28, 1995
    Assignee: American Home Products Corporation
    Inventors: Thomas J. Commons, Richard E. Mewshaw, Donald P. Strike
  • Patent number: 5391571
    Abstract: The compounds of the formula: ##STR1## in which R.sup.1 is alkyl of 4 or more carbon atoms, cycloalkyl, 1-adamantyl, 2-adamantyl, 3-noradamantyl, 3-methyl-1-adamantyl, 1-fluorenyl, 9-fluorenyl, cycloalkylalkyl, phenyl, substituted phenyl, alkyl, alkoxy, halo, nitro, cyano or trifluoromethyl, phenylalkyl or substituted phenylalkyl, where the substituent on the benzene ring is alkyl, alkoxy, halo, nitro, cyano, trifluoromethyl or phenyl; R.sup.2 is hydrogen, alkyl or R.sup.1 taken with R.sup.2 and the nitrogen atom to which they are attached form a heterocyclic moiety of the formula: ##STR2## wherein ##STR3## in which R.sup.7 is hydrogen, alkyl, hydroxy, alkanoyloxy, hydroxyalkyl, hydroxycarbonyl, alkoxycarbonyl, phenyl or substituted phenyl, in which the substituent is alkyl, alkoxy, halo, nitro, cyano, haloalkyl, perhaloalkyl or dialkylaminoalkyl; R.sup.8 is hydrogen or alkyl or R.sup.7 and R.sup.8 taken together are polymethylene; R.sup.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: February 21, 1995
    Assignee: American Home Products Corporation
    Inventors: Richard E. Mewshaw, Thomas J. Commons, Donald P. Strike
  • Patent number: 5250537
    Abstract: 5,6,7,8,9,10-Hexahydro-7,10-iminocyclohept[b]indole, 6,7,8,9,10,11-hexahydro-7,11-imino-5H-cyclooct[b]indole and substituted derivatives are effective in the treatment of psychoses with limited liability to produce concomitant adverse extrapyramidal symptoms. These compounds are also useful for treating other central nervous system and cardiovascular disorders.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: October 5, 1993
    Assignee: Scios Nova Inc.
    Inventors: Richard E. Mewshaw, Carl Kaiser, Mary E. Abreu
  • Patent number: 5190940
    Abstract: The compounds of the formula: ##STR1## in which R.sup.1 is hydrogen or alkyl; R.sup.2 is alkyl, cycloalkyl, cycloalkylalkyl, phenylalkyl or alkylphenylalkyl; or R.sup.1 and R.sup.2 taken together complete a heterocyclic moiety of the formula: ##STR2## in which X is ##STR3## where R.sup.3,R.sup.4 and R.sup.5 are, independently hydrogen, alkyl, phenyl or substituted phenyl, in which the substituents are halogeno, alkoxy or trifluoromethyl; R.sup.6 is hydrogen, alkyl or gemdialkyl and n is one of the integers 0, 1 or 2, are cholesterol ester hydrolase inhibitors useful in the treatment of high serum cholesterol levels and associated disease states in the mammal such as coronary heart disease, atherosclerosis, familial hypercholesterolemia, hyperlipemia, and the like.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: March 2, 1993
    Assignee: American Home Products Corporation
    Inventors: Thomas J. Commons, Richard E. Mewshaw, Donald P. Strike
  • Patent number: 5112859
    Abstract: The compounds of the formula: ##STR1## in which R.sup.1 is hydrogen or alkyl; R.sup.2 is alkyl, cycloalkyl, cycloalkylalkyl, phenylalkyl or alkylphenylalkyl; or R.sup.1 and R.sup.2 taken together complete a heterocyclic moiety of the formula: ##STR2## in which X is ##STR3## NR.sup.5,--O-- or --S--; where R.sup.3, R.sup.4 and R.sup.5 are, independently hydrogen, alkyl, phenyl or substituted phenyl, in which the substituents are halogeno, alkoxy or trifluoromethyl; R.sup.6 is hydrogen, alkyl of gemdialkyl and n is one of the integers 0, 1 or 2, are cholesterol ester hydrolase inhibitors useful in the treatment of high serum cholesterol levels and associated disease states in the mammal such as coronary heart disease, atherosclerosis, familial hypercholesterolemia, hyperlipemia, and the like.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: May 12, 1992
    Assignee: American Home Products Corporation
    Inventors: Thomas J. Commons, Richard E. Mewshaw, Donald P. Strike
  • Patent number: 4812583
    Abstract: Compounds of the formula: ##STR1## where M is hydrogen or alkyl; R.sup.2 and R.sup.3 are, independently, alkyl; R.sup.4 is hydrogen, alkyl, phenyl or substituted phenyl, trifluoromethyl; and R.sup.5 is alkyl, phenyl or substituted phenyl, alkoxy, or trifluoromethyl; or a pharmaceutically acceptable salt thereof, are hypocholesteremic agents.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: March 14, 1989
    Assignee: American Home Products Corporation
    Inventors: Thomas J. Commons, Richard E. Mewshaw, Donald P. Strike
  • Patent number: 4709025
    Abstract: This invention provides novel antibacterial beta-lactams of the formula: ##STR1## in which R is alkyl of 1 to 6 carbon atoms, carboxyalkyl of 2 to 6 carbon atoms or alkoxycarbonylalkyl wherein the alkyl and alkoxy moieties contain, independently, 1 to 6 carbon atoms;R.sup.1 is alkylideneamino of 2 to 6 carbon atoms, alkanoylamino of 2 to 6 carbon atoms, carboxyalkylideneamino of 2 to 6 carbon atoms, alkylsulfonylamino of 1 to 6 carbon atoms, alkoxycarbonylalkylsulfonylamino of 3 to 13 carbon atoms, or N,N-cyclodialkanoylamino of 4 to 6 carbon atoms;or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: November 24, 1987
    Assignee: American Home Products Corporation
    Inventors: Richard E. Mewshaw, Thomas J. Commons