Patent ID: 6949575

Claim:
A compound of the Formula I wherein: R 1 and R 2 independently are hydrogen, C 1 -C 3 alkyl, C 2 -C 8 alkenyl, C 2 -C 8 alkynyl, (CH 2 ) n phenyl or (CH 2 ) n substituted phenyl, provided that one of R 1 and R 2 is other than hydrogen; R 4 and R 5 independently are hydrogen, halo, C 1 -C 8 alkyl, C 2 -C 8 alkenyl, C 2-C 8 alkynyl, (CH 2 ) n phenyl, (CH 2 ) n substituted phenyl, NO 2 , CN, CF 3 , C 1 -C 8 alkoxy, CO 2 R 6 , tetrazolyl, NH(C 1 -C 8 alkyl), N(C 1 -C 8 alkyl) 2 , or SO 2 R 6 ; R 3 is hydrogen or C 1 -C 8 alkyl; R 6 is hydrogen, C 1 -C 8 alkyl, or (CH 2 ) n phenyl or (CH 2 ) n substituted phenyl; n is an integer from 0 to 4 inclusive; or a pharmaceutically acceptable salt, ester, or amide thereof.