NEW MATERIAL:The compound of formula I {X1 and X2 are H, nitro, trifluoromethyl, lower alkyl, (halogen-substituted) lower alkoxy, F or Cl; R1 and R2 are H, 1-6C alkyl or R1 and R2 together form (substituted) 1,4-butylene; R3 is 1-10C alkyl or R3 and R2 together form (substituted) ethylene, etc.; Y is 1-4C alkyl, group of formula II [R5 and R6 are (substituted) 1-4C alkyl] or group of formula III} and its salt. EXAMPLE:5-(Ethoxy-N, N-dimethylamino-phosphinyl)-2,6-dimethyl-4-(3-chlorophe ny-l)--1,4-dihydropyridine-3-carboxylic acid 2-(N-benzyl-N-methylamino)-ethyl ester. USE:A remedy for circulatory diseases. PREPARATION:The compound of formula IV is made to react with the comopund of formula V.
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机译：新材料：式I的化合物{X 1和X 2为H，硝基，三氟甲基，低级烷基，（卤素取代的）低级烷氧基，F或Cl; R 1和R 2为H，1-6C烷基或R 1和R 2一起形成（取代的）1，4-丁烯; R 3为1〜10C的烷基或R 3与R 2一起形成（取代的）乙烯等。 Y为1-4C烷基，式II的基团[R 5和R 6为（取代的1-4C烷基）]或式III}的基团及其盐。实施例：5-（乙氧基-N，N-二甲基氨基-膦基）-2，6-二甲基-4-（3-氯苯甲基-1-）-1，4-二氢吡啶-3-羧酸2-（N-苄基） -N-甲基氨基）-乙酯。用途：一种治疗循环系统疾病的药物。制备：使式IV的化合物与式V的化合物反应。
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