Patents by Inventor Anita W-Y. Chan

Anita W-Y. Chan 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: 6916922
    Abstract: This invention provides a process for the preparation of 1, 2, 3, 4, 8, 9, 10, 10a-octahydro-7bH-cyclopenta[b][1,4]diazepino[6,7,1-hi]indole derivatives of the general formula: wherein: R is H, alkyl, cycloalkyl, —CH2-cycloalkyl, acyl, aryl or aroyl; R1, R2, R4 and R5 are H, hydroxy, alkyl, cycloalkyl, alkoxy, halogen, fluorinated alkyl, —CN, —NH—SO2-alkyl, —SO2—NH-alkyl, alkyl amide, amino, alkylamino, dialkylmino, fluorinated alkoxy, acyl, aryl or aroyl; R3 is H, alkyl, cycloalkyl, alkoxy, fluorinated alkyl, alkyl sulfonamide, alkyl amide, amino, alkylamino, dialkylmino, fluorinated alkoxy, acyl, aryl or aroyl; or a pharmaceutically acceptable salt thereof, as well as intermediates for their synthesis.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: July 12, 2005
    Assignee: Wyeth
    Inventor: Anita W-Y. Chan
  • Publication number: 20020055504
    Abstract: This invention provides a process for the preparation of 1, 2, 3, 4, 8, 9, 10, 10a-octahydro-7bH-cyclopenta[b][1,4]diazepino[6, 7, 1-hi]indole derivatives of the general formula: 1
    Type: Application
    Filed: November 2, 2001
    Publication date: May 9, 2002
    Inventor: Anita W-Y. Chan