Patent ID: 7732607

Claim:
A compound having a structure of the formula: wherein: Y is either oxygen or sulfur, Z is either NH or a covalent bond, A is either absent or a linker species selected from the group —CR′R″—, —CR′R″—CR′R″—, —CR′═CR′—, and —C 2 —, wherein R′ and R″ are as hereinafter defined, Ar is indole, benzofuran, or benzothiophene; and Cy is pyridine, wherein, Ar can be unsubstituted or can be substituted with 3 one or more substituents selected from the group consisting of alkyl, alkenyl, cycloalkyl, aryl, substituted aryl, arylalkyl, substituted arylalkyl, halo —OR′, —NR′R″, —CF 3 , —CN, —NO 2 , —C 2 R′, —SR′, —N 3 , —C(═O)NR′R″, —NR′C(═O)R″, —C(═O)R′, —C(═O)OR′, —OC(═O)R′, —O(CR′R″) r C(═O)R′, O(CR′R″) r NR″C(═O)R′, —O(CR′R″) r NR″SO2R′, —OC(═O)NR′R″, —NR′C(═O)O—R″, SO 2 R′, —SO 2 NR′R″, and —NR′SO 2 R″, where R′ and R″ are individually hydrogen, alkyl C 1 -C 8 alkyl, cycloalkyl, aryl, or arylalkyl, and r is an integer from 1 to 6, or a radiolabeled version thereof or a pharmaceutically acceptable salt thereof.