AE0047 Pyridine-3,5-carboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, 2-(4-(4-benzhydrylpiperazin-1-yl)phenyl)ethyl methyl ester, Dihydrochloride, (+-)- US5679100 Watanidipine hydrochloride