Studies on novel and chiral 1,4-dihydrpyridines. V. Hantzsch-type 1,4-dihydropyridines having a chiral sulfinyl group: Syntheses, structures, and biological activity as a calcium channel antagonist

Article abstract of DOI:10.1016/S0040-4020(97)00155-5

4-Aryl and 4-methyl substituted Hantzsch-type 1,4-dihydropyridines having a chiral sulfinyl group as an electron-withdrawing group were successfully synthesized in an optically active form from β-ketosulfoxides via two routes. The relationship between calcium channel antagonist activity and the structures of 4-aryl derivatives was also studied.