| abstract |
(57) [Summary] [Structure] Equation 1 The optically active amino-4,4,4-crotonate represented by and a production method have been developed. In addition, the compound of the formula 5 Optically active 2-trifluoromethyl-1,4-represented by A method for efficiently producing dihydropyridine derivatives has been developed. According to the present invention, the optically active amino-4,4,4, -crotonate represented by the formula 1 and the optically active 2-trifluoromethyl-1,4-dihydropyridine can be produced on an industrial scale. |