157291-83-3 5-((1-Methyl-3-indolizinyl)carbonyl)-4,5,6,7-tetrahydro-1H-benzimidazole hydrochloride Methanone, (1-methyl-3-indolizinyl)(4,5,6,7-tetrahydro-1H-benzimidazol-5-yl)-, monohydrochloride, (R)- YM 26103-2 YM-26103-2