Patent ID: 8207155

Claim:
A compound having a structure represented by formula: or a pharmaceutically acceptable salt thereof, wherein: R 1 is methylimidazolyl; R 2 is four substituents independently selected from hydrogen, halogen, OR, nitrile, nitro, SR, N(R) 2 , and optionally substituted C 1 -C 6 alkyl; each R is independently hydrogen or optionally substituted C 1-6 aliphatic, or two R groups on the same nitrogen are taken together with the nitrogen to form a 4-8 membered heterocyclic ring having 1-2 heteroatoms independently selected from nitrogen, oxygen, or sulfur; R 3 is an optionally substituted group selected from C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 heteroalkyl, C 2 -C 6 heteroalkenyl, C 2 -C 6 heteroalkynyl, C 3 -C 6 cycloalkyl, C 3 -C 6 cycloalkenyl, C 3 -C 6 heterocycloalkyl, C 3 -C 6 heterocycloalkenyl, aryl, and heteroaryl; R 4 is hydrogen or an optionally substituted C 1 -C 6 alkyl; and R 5 is optionally substituted phenyl.