Patent ID: 8173813

Claim:
A compound having the formula: wherein, Q is (CHR 6 ) 1-3 ; R 1 and each R 6 is, independently, H, optionally substituted C 1-6 alkyl, optionally substituted C 1-4 alkaryl, optionally substituted C 1-4 alkheterocyclyl, optionally substituted C 2-9 heterocyclyl, or optionally substituted C 3-8 cycloalkyl; wherein Y 1 and Y 2 are each H, or Y 1 and Y 2 together are ═O, or Y 1 and Y 2 are independently H, optionally substituted C 1-6 alkyl, optionally substituted C 6-10 aryl, optionally substituted C 1-6 alkaryl, optionally substituted C 2-9 heterocyclyl, hydroxy, optionally substituted C 1-6 alkoxy, optionally substituted C 1-6 thioalkoxy, or optionally substituted C 1-4 alkheterocyclyl; one and only one of R 2 , R 3 , R 4 , and R 5 is (CH 2 ) r2 NHC(NH)R 2A ; wherein r2 is 0; R 2A is 2-thienyl; and each of the remaining R 2 , R 3 , R 4 , and R 5 is, independently, H or fluoro; or a pharmaceutifully acceptable salt thereof.