2,6-Dimethyl-3,5-diethoxycarbonyl-4-(o-(trifluoromethylsulfonyl)phenyl)-1,4-dihydropyridine 3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(o-(trifluoromethylsulfonyl)phenyl)-, diethyl ester 84761-68-2