1 C57 4-(dimethylamino)-N-{[(2s)-1-ethylpyrrolidin-2-yl]methyl}-2-methoxy-5-nitrobenzamide 1.000 2 C56 4-(dimethylamino)-N-{[(2r)-1-ethylpyrrolidin-2-yl]methyl}-2-methoxy-5-nitrobenzamide 1.000