作者:Hamid R. Memarian、Masumeh Abdoli-Senejani、Dietrich Döpp
DOI:10.1515/znb-2006-0110
日期:2006.1.1
5-unsymmetrically substituted 1,4-dihydropyridines have been synthesized, which have ethoxycarbonyl and acetyl groups on 3- and 5-positions, respectively. A three-step procedure has been examined to increase the yield of the desired products, by suppressing the formation of the symmetrically substituted 3,5-diacetyl-1,4-dihydropyridines and 3,5-diethoxycarbonyl- 1,4-dihydropyridines.
已经合成了一系列新的 3,5-不对称取代的 1,4-二氢吡啶,它们分别在 3-位和 5-位具有乙氧羰基和乙酰基。通过抑制对称取代的 3,5-二乙酰基-1,4-二氢吡啶和 3,5-二乙氧基羰基-1,4-二氢吡啶的形成,已经研究了三步法以提高所需产物的产率。