Abstract
A simple and high yield route to 3,4,5-trisubstituted 1,4-dihydropyridine systems via an interesting intermolecular condensation and double decarboxylation is described.
Keywords: 3,4,5-trisubstituted, 1,4-dihydropyridines, double decarboxylation, enamine, heterocycles, intermolecular condensation, tandem reaction, nifedipine), calcium, ethylidene, dimethyl