174657-52-4 2-t-Butyl-3-phenyl-4-(2-piperidinoethyl)-4H-pyrrolo(1,2-a)benzimidazole dihydrobromide 4H-Pyrrolo(1,2-a)benzimidazole, 2-(1,1-dimethylethyl)-3-phenyl-4-(2-(1-piperidinyl)ethyl)-, dihydrobromide