Patent ID: 6605612
Filing Date: 2003-08-12
Classification: A61P,C07D,C07F

Abstract:
A compound of the formula I in which R1 is hydrogen or alkyl; R2 is â€”CH2OH, â€”CH3, â€”CO2R6 in which R6 is hydrogen, alkyl, or aryl; or R2 is â€”CH2-O-alkyl- in which alkyl is covalently bonded to the oxygen at the 3-position instead of R1; R3 is hydrogen and R4 is hydroxy, halo, alkoxy, alklcarbonyloxy, alkylamino or arylamino; or R3 and R4 are halo; and R5 is hydrogen, alkyl, aryl, aralkyl, or â€”CO2R7 in which R7 is hydrogen, alkyl, aryl, or aralkyl; or a pharmaceutically acceptable acid addition salt thereof.