manidipine [ 2-(4-diphenylmethyl-1-piperazinyl)ethyl methyl-1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylate,CV 4093,CV-4093,manidipine dihydrochloride,manidipine, (+-)-isomer ] structure given in first source; RN given refers to parent cpd