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