Patent ID: 8003785

Claim:
A compound of formula I: wherein R1 is —(CH 2 ) n -phenyl, —(CH 2 ) n -thiophenyl or phenylcyclopropyl; R2 is hydrogen, methyl, ethyl, or propyl; each of R3, R3′, and R3″ is independently hydrogen, chloro, fluoro, C1 to C5 straight or branched alkyl, trifluoromethyl, methoxy, ethoxy, trifluoromethoxy, or trifluoromethoxy; R4 is hydroxyl, amino, methoxy, R5-NH—, or where X is CH 2 , O, or NH, where if X is CH 2 or NH, X may be optionally substituted by amino or C1 to C5 straight or branched chain alkyl; R5 is R13-(CH 2 ) n —, methyl n is an integer from 0 to 4, R7 is hydrogen or C1 to C5 straight or branched chain alkyl, R13 is R14R15N—, R14 and R15 are independently hydrogen, C1 to C5 straight or branched chain alkyl, C3 to C6 cycloalkyl, or phenyl; or a pharmaceutically acceptable salt thereof.