(S)-2,6-Dimethyl-4-(3-nitro-phenyl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid 3-((2S,3R,4S,5S,6S)-6-carboxy-3,4,5-trihydroxy-tetrahydro-pyran-2-yl) ester 5-methyl ester

(R)-尼群地平

(S)-尼群地平

2,6-二甲基-4-(3-硝基苯基)-吡啶-3,5-二羧酸-3-乙酯-5-甲酯