Patent ID: 6875775
Filing Date: 2005-04-05
Classification: A61P,C07C,C07D

Abstract:
1. A compound of the formula: wherein R1 is H, halogen, OCH R2 is  where X is O, and n is an integer from 1 to 4; and R4 and R5, which are the same or different, are a 1 to 4 carbon alkyl, H, —CH R4 and R5 form an N-containing five- or six-membered ring or heteroaromatic ring; and R3 is H, halogen, OH or —OCH or a stereoisomer; or a non-toxic pharmaceutically acceptable salt or ester thereof or mixtures thereof, provided that a) when R2 is  in the 4-position of the phenyl then R1 and R3 cannot simultaneously be H; and b) when R2 is  in the 4-position of the phenyl