Patent ID: 8557853

Claim:
A compound having the structure: or a pharmaceutically acceptable salt thereof wherein: R 1 is H, alkyl, phenyl, or substituted phenyl; n is 0 or 1; Z 1 -Z 6 are each independently C, CH, N, O, or S; p is 0 or 1; m is 1 to 5; each R 2 is independently lower alkyl, halide, trifluoromethyl, lower alkenyl, lower alkynyl, cycloalkyl, —CN, —CH 2 CN, —CH 2 SR 3 , —CH 2 N(R 3 ) 2 , —CH 2 OR 3 , —OR 3 , —SR 3 , —C(O)R 4 ; wherein two R 2 moieties taken together with carbon atoms to which each R 2 is attached may form an aryl, substituted aryl, heteroaryl, substituted heteroaryl, cycloalkyl, substituted cycloalkyl, heterocyclic, or substituted heterocyclic ring; each R 3 is independently H, lower alkyl, or cycloalkyl; and each R 4 is independently H, lower alkyl, cycloalkyl, alkoxy, phenyl, substituted phenyl, heteroaryl, substituted heteroaryl, or trifluoromethyl.