Patent ID: 6432946
Filing Date: 2002-08-13
Classification: C07D

Abstract:
A compound of the formula: or a pharmaceutically acceptable acid addition salt thereof, whereinR1, R2, R3 and R4 are the same or different and represent hydrogen, halogen, C1-C6 alkyl, C1-C4 alkoxy, cycloalkoxy, alkylthio, hydroxy, amino, mono- or dialkylamino where each alkyl is C1-C6 alkyl, cyano, nitro, trifluoromethyl or trifluoromethoxy; R5 is hydrogen or C1-C6 alkyl; A is a C2, C3 or C4 straight or branched alkyl group; Ar represents aryl or heteroaryl of the formula â€ƒwhere Y and Z independently represent CH or nitrogen; W is CH or nitrogen; and X is oxygen or sulfur.