Patent ID: 6974567

Claim:
A compound of the following formula: M-(BM) n wherein M is a radionuclide that is a positron emitter; n is an integer from 1to 10; and BM is an SR-A antagonist of formula: wherein R 1 is independently selected from: H, R 1 -benzamido, R 1 -benzylether, R 1 -benzylamino, amino, fluoralkyl, halo, cyano, nitro, aryloxyl, haloaryl, aryl, alkoxy, an 1,2-benzo; or R 1 represents a fused ring forming naphthalene moiety with the six membered aryl ring it substitutes; R 2 is a direct bond to M; and m is an integer from 1 to 4; or a pharmaceutically acceptable salt thereof.