Derivation of fluorine-containing pyridine dicarboxylates<b>IV</b>.<i>N</i>-substituted dihydropyridine derivatives
作者:John P. Chupp
DOI:10.1002/jhet.5570270634
日期:1990.9
The bio-activity observed for certain Hantzsch derived fluorine-containing dihydropyridinecarboxylates 6, 11 and 12 and pyridinecarboxylates 10 prompted the preparation of a number of related N-substituted dihydropyridines for the first time. One method involved a mixed Hantzsch sequence to give 2 from which unexpected side products 3–5 were also isolated and identified. A second preparative method
对于某些汉奇观察到的生物活性的衍生dihydropyridinecarboxylates含氟6,11和12和pyridinecarboxylates 10提示了若干有关的制备ñ -取代的二氢吡啶的第一次。一种方法涉及混合的Hantzsch序列,得到2,从中也分离并鉴定出意想不到的副产物3-5。第二种制备方法依靠的lithiobase去质子化6,11和12,接着通过烷基化或酰化,得到产品7-9和13-15。根据光谱特性和反应模式讨论了结构确定和立体分配。