Azure a analogues useful as probes in the diagnostic imaging for diseases due toaccumulation of amyloid and compositions for diagnostic imaging containing the analogues

摘要

Compounds of the general formula (II), particularly BF-009, useful as probes in the diagnostic imaging for diseases due to accumulation of amyloid; and compositions and kits for the diagnostic imaging for diseases due to accumulation of amyloid. In said formula Ra, Rb, Rc, and Rd are each independently C2-4 alkyl.