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US5463064A Dihydropyridine-3,5-dicarboxylic acid ester derivatives 失效
二氢吡啶-3,5-二羧酸酯衍生物

Dihydropyridine-3,5-dicarboxylic acid ester derivatives
摘要:
A dextro-rotatory optical isomer of diastereoisomer A of (.+-.)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-(1-benzylpyrrolidin-3-yl)ester 5-methyl ester is provided having the formula ##STR1## and wherein the melting point of the hydrochloride of the dextro-rotatory optical isomer is 223.degree. to 230.degree. C. (decomp.), or a pharmaceutically acceptable acid addition salt thereof.
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