4((S)-2-hydroxy-3-phenoxypropylamino)butylmethyl-2,6-dimethyl-((S)-4-(m-nitrophenyl))-1,4-dihydropyridine-3,5-dicarboxylic acid
4((s)-2-hydroxy-3-phenoxypropylamino)butylmethyl-2,6-dimethyl-((s)-4-(m-nitrophenyl))-1,4-dihydropyridine-3,5-dicarboxylic acid