Patent ID: 6525053
Filing Date: 2003-02-25
Classification: A61K,C07D

Abstract:
A compound of formula I: or a pharmaceutically acceptable salt thereof, wherein:X is selected from the group consisting of O; R is selected from the group consisting of alkyl, haloalkyl, haloalkenyl, aryl, and arylalkyl, wherein aryl in said aryl and arylalkyl groups is unsubstituted phenyl or phenyl substituted with a substituent selected from the group consisting of halogen, alkyl, and haloalkyl; R2 is a group having the formula: whereX1 is â€”SO2â€”; R9 is selected from the group consisting of alkyl and amino; X2 is hydrogen; R1 is hydrogen; and R3 is selected from the group consisting of hydroxyalkyl, alkyl, and aryl, wherein aryl is unsubstituted phenyl or phenyl substituted with a substituent selected from the group consisting of halogen, alkyl, alkoxy, and hydroxyalkyl; or a pharmaceutically acceptable salt thereof.