Patent ID: 7288571

Claim:
A compound having the formula wherein n is an integer from 0 to 4; R 1 is C 1 to C 6 alkyl or C 3 cycloalkyl; R 2 and R 3 are the same or different and are hydrogen, halogen, alkyl of 1 to 4 carbons, at least one of R 2 and R 3 being other than hydrogen; R 4 is an amine (NR′R″), where R′ and R″ are independently selected from the group consisting of H, C 1-4 alkyl and phenyl, or an acylsulphonamide (CONHSO 2 R′); with the proviso that when n equals zero (n=0), then R 4 can only be an acylsulphonamide; R 5 is H, C(O)CH 3 , or C(O)C 6 H 5 ; including all stereoisomers thereof, and pharmaceutically acceptable salts thereof.