Study of the Structure-Activity Relationships of New Dihydropyridine Derivatives

Abstract

The effects of structure around the 3-and 5-alkoxycarbonyl groups and the 2-carbamate groups of 4-(2, 3-dichlorophenyl)-2-carbamoyloxymethyl dihydropyridine derivatives were investigated, concerning their vasodilating action, plasma level, hypotensive action and acute toxicity. High negative linear correlation was found between the plasma levels and the number of C atoms in esterifying alkyl groups in 3-and 5-positions of the dihydropyridine ring. High plasma levels and effective hypotensive action were found in compounds having lower alkyls as esterifying groups of 3- and 5-carboxylgroups, among 2-unsubstituted derivatives.