Patent number: 7351839
Abstract: This invention provides processes for preparing compounds formula: wherein R is H, alkyl, acyl, aryl, aroyl or —C(O)R?; R? is alkyl or aryl; R1, R2, R4 and R5 are H, —OH, alkyl, cycloalkyl, alkoxy, halogen, fluorinated alkyl or alkoxy, —CN, —NH—SO2-alkyl, —SO2—NH-alkyl, alkyl amide, amino, alkylamino, dialkylamino, acyl, aryl or aroyl; R3 is H, alkyl, cycloalkyl, alkoxy, fluorinated alkyl, —NH—SO2-alkyl, —SO2—NH-alkyl, alkyl amide, amino, alkylamino, dialkylamino, fluorinated alkoxy, acyl, aryl, or aroyl; or a pharmaceutically acceptable salt thereof, as well as novel compounds useful in the synthesis of these compounds.
Type:
Grant
Filed:
November 21, 2006
Date of Patent:
April 1, 2008
Assignee:
Wyeth
Inventors:
Gregory S. Welmaker, Joan E. Sabalski, Michael D. Smith
Patent number: 7141563
Abstract: This invention provides processes for preparing compounds formula: wherein R is H, alkyl, acyl, aryl, aroyl or —C(O)R?; R? is alkyl or aryl; R1, R2, R4 and R5 are H, —OH, alkyl, cycloalkyl, alkoxy, halogen, fluorinated alkyl or alkoxy, —CN, —NH—SO2-alkyl, —SO2—NH-alkyl, alkyl amide, amino, alkylamino, dialkylamino, acyl, aryl or aroyl; R3 is H, alkyl, cycloalkyl, alkoxy, fluorinated alkyl, —NH—SO2-alkyl, —SO2—NH-alkyl, alkyl amide, amino, alkylamino, dialkylamino, fluorinated alkoxy, acyl, aryl, or aroyl; or a pharmaceutically acceptable salt thereof, as well as novel compounds useful in the synthesis of these compounds.
Type:
Grant
Filed:
November 2, 2001
Date of Patent:
November 28, 2006
Assignee:
Wyeth
Inventors:
Gregory S. Welmaker, Joan E. Sabalski, Michael D. Smith