[EN] PROCESS FOR THE PREPARATION OF 1,4-DIHYDROPYRIDINES AND NOVEL 1,4-DIHYDROPYRIDINES USEFUL AS THERAPEUTIC AGENTS<br/>[FR] PROCEDE DE PREPARATION DE 1,4-DIHYDROPYRIDINES ET NOUVELLES 1,4-DIHYDROPYRIDINES UTILES EN TANT QU'AGENTS THERAPEUTIQUES
申请人:COUNCIL SCIENT IND RES
公开号:WO2003099790A1
公开(公告)日:2003-12-04
The present invention provides a process for the preparation of 1,4-dihydropyridines of the formula (1), wherein R1 is H, NO2, Cl, OAc, OH, R2 is H, NO2, Cl, -O-CH2-O-, OMe, OAc, OEt, OH, R3 is H, NO2, Cl, N(Me)2, -O- CH2 -O-, OMe, OAc, OH, R4 is H, OMe, OAc, OH, R5 is H, Cl, I, and R6 and R7 are either methyl, ethyl or both by preparing a mixture of an aromatic aldehyde, alkyl acetoacetate and a source of ammonia, adsorbing the prepared mixture and adsorbent till adsorbent becomes free flowing, heating the material so obtained under microwave irradiation, cooling the reaction mixture and recovering the compound of formula (1). The present invention also relates to novel 1,4-dihydropyridines with cardiovascular activity.
本发明提供了一种制备1,4-二氢吡啶的方法,其化学式为(1),其中R1为H、NO2、Cl、OAc、OH,R2为H、NO2、Cl、-O-CH2-O-、OMe、OAc、OEt、OH,R3为H、NO2、Cl、N(Me)2、-O- CH2 -O-、OMe、OAc、OH,R4为H、OMe、OAc、OH,R5为H、Cl、I,R6和R7为甲基、乙基或两者的混合物,通过制备芳香醛、醋酸烯酮酯和氨源的混合物,吸附制备的混合物和吸附剂直至吸附剂变得自由流动,加热所得材料在微波辐射下,冷却反应混合物,并回收化合物的方法。该发明还涉及具有心血管活性的新型1,4-二氢吡啶。