3,4-Dihydro-8-methoxy-alpha-methylpyrimido(1,2-b)benzimidazole-1(2H)-propanoic acid 79514-69-5 BRN 5599723 Pyrimido(1,2-b)benzimidazole-1(2H)-propanoic acid, 3,4-dihydro-8-methoxy-alpha-methyl-