Patent ID: 8124641

Claim:
A compound of formula I: or a pharmaceutically acceptable salt or ester thereof; wherein: Q is carbon, R1 is hydrogen or lower alkyl optionally substituted by halogen; R2 and R3 are bonded to the ring containing Q by substitution of a hydrogen atom of a ring carbon atom; and R2 and R3 are independently selected from the group consisting of: (1) hydrogen; (2) halogen; (3) —NH 2 ; (4) —NO 2 ; (5) lower alkyl optionally substituted by halogen, (6) lower cycloalkyl optionally substituted by lower alkyl; (7) lower alkenyl; (8) lower alkynyl; (9) lower alkanoyl; (10) lower alkoxy; (11) lower cycloalkoxy; (12) lower heterocycloalkyl; (13) lower heterocycloalkyloxy; (14) lower alkylsulfanyl, lower cycloalkylsulfanyl, or lower heterocycloalkylsulfanyl; (15) lower alkylsulfinyl, lower cycloalkylsulfinyl, or lower heterocycloalkylsulfinyl; (16) lower alkylsulfonyl, lower cycloalkylsulfonyl, or lower heterocycloalkylsulfonyl; (17) lower alkylcarbonylamino; (18) lower alkylsulfonylamino; (19) lower dialkylamino; and (20) lower trialkylsilyl; wherein at least one of R2 or R3 is a moiety other than hydrogen; and n is 1 or 2.