Patents by Inventor Amarnauth Prashad

Amarnauth Prashad 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).

  • Publication number: 20100063118
    Abstract: The present invention relates to hydantoin derivatives having RNase H, polymerase and/or HIV reverse transcriptase modulatory, and particularly, inhibitory activity. Included in the invention are the hydantoin derivatives, compositions containing the derivatives, methods of synthesis of the derivatives, screening methods to identify the derivatives, and methods of treatment using the hydantoin derivatives, including the treatment of HIV, AIDS and retrovirus-associated cancer.
    Type: Application
    Filed: July 10, 2009
    Publication date: March 11, 2010
    Applicant: Wyeth
    Inventors: Matthew W. Olson, Martin Di Grandi, Amarnauth Prashad
  • Patent number: 7553967
    Abstract: The present invention is directed to compound of formula (A): wherein R1 is selected from (a) alkyl, alkenyl, alkynyl, cycloalkyl, aryl, and heteroaryl, or (b) CN and —C(NR10R11)?N—R12, R2 is selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, aryl and heteroaryl, R3-R12 are as described within the specification, and A is O, NR9 or S, or a prodrug, a pharmaceutically acceptable salt or a pharmaceutically active metabolite thereof, provided that R1 is not alkyl when R2 is pyridine, provided that at least one of R3-R8 is not H or F when A is O, R1 is (b) and R2 is a phenyl ring, a phenyl ring substituted at the para position with halo, —CN, —OCH3, —CF3 or —CO2CH3, a quinoline or an ethylene substituted with a phenyl ring or a 3,4-methylenedioxyphenyl moiety, provided that R4 is not methyl when R3 and R5-R8 are H, A is O, R1 is (b) and R2 is 4-chlorophenyl, and provided that R6 is not Cl when R3-R5 and R7-R8 are H, R1 is CN and R2 is phenyl.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: June 30, 2009
    Assignee: Wyeth
    Inventors: Matthew Olson, Martin Di Grandi, Amarnauth Prashad
  • Publication number: 20070287708
    Abstract: The present teachings provide compounds of formula I and their pharmaceutically acceptable salts, hydrates, and esters, wherein R1, R2, and X are as defined herein. The present teachings also provide methods of making the compounds of formula I, and methods of treating autoimmune and inflammatory diseases by administering a therapeutically effective amount of a compound or compounds of formula I to a mammal including a human.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 13, 2007
    Inventors: Derek Cole, Diane Boschelli, Yanong Wang, Magda Asselin, Diane Joseph-McCarthy, Amarnauth Prashad, Allan Wissner, Russell Dushin, Biqi Wu, Lawrence Tumey, Chuan Niu, Joan Chen
  • Publication number: 20050203156
    Abstract: The present invention relates to hydantoin derivatives having RNase H, polymerase and/or HIV reverse transcriptase modulatory, and particularly, inhibitory activity. Included in the invention are the hydantoin derivatives, compositions containing the derivatives, methods of synthesis of the derivatives, screening methods to identify the derivatives, and methods of treatment using the hydantoin derivatives, including the treatment of HIV, AIDS and retrovirus-associated cancer.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 15, 2005
    Applicant: Wyeth
    Inventors: Matthew Olson, Martin Grandi, Amarnauth Prashad
  • Publication number: 20050203129
    Abstract: The present invention is directed to compound of formula (A): wherein R1 is selected from (a) alkyl, alkenyl, alkynyl, cycloalkyl, aryl, and heteroaryl, or (b) CN and —C(NR10R11)?N—R12, R2 is selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, aryl and heteroaryl, R3-R12 are as described within the specification, and A is O, NR9 or S, or a prodrug, a pharmaceutically acceptable salt or a pharmaceutically active metabolite thereof, provided that R1 is not alkyl when R2 is pyridine, provided that at least one of R3-R8 is not H or F when A is O, R1 is (b) and R2 is a phenyl ring, a phenyl ring substituted at the para position with halo, —CN, —OCH3, —CF3 or —CO2CH3, a quinoline or an ethylene substituted with a phenyl ring or a 3,4-methylenedioxyphenyl moiety, provided that R4 is not methyl when R3 and R5-R8 are H, A is O, R1 is (b) and R2 is 4-chlorophenyl, and provided that R6 is not Cl when R3-R5 and R7-R8 are H, R1 is CN and R2 is phenyl.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 15, 2005
    Inventors: Matthew Olson, Martin Di Grandi, Amarnauth Prashad
  • Publication number: 20050203176
    Abstract: The present invention relates to carbamate derivatives having RNase H, polymerase and/or HIV reverse transcriptase modulatory, and particularly, inhibitory activity. Included in the invention are the carbamate derivatives, compositions containing the derivatives, methods of synthesis of the derivatives, screening methods to identify the derivatives, and methods of treatment using the carbamate derivatives, including the treatment of HIV, AIDS and retrovirus-associated cancer.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 15, 2005
    Applicant: WYETH
    Inventors: Matthew Olson, Martin Grandi, Amarnauth Prashad