Electrocyclic reaction product of 1-(methoxycarbonyl)-1,2-dihydropyridine was stereospecifically converted by RuO(4) oxidation into azetidine-cis-2,3-dicarboxylic acid.

Recent studies have indicated that 1, 4-dihydropyridine-3, 5-dicarboxamidederivativesshow significant anti-tubercular activity. In this research, new derivatives of 1, 4-dihydropyridine were designed and synthesized using Hantzsch condensation in which dicyclohexyl and different dicyclohexylcarbamoylwere substituted at C-3 and C-5 positions of the DHP ring.In addition, 4 (5)-chloro-2-methyl-5 (...

The [H]nitrendipine binding properties of antidihydropyridine antibodies were characterized and compared with the known [H]nitrendipine binding properties of the membrane receptor for the 1,4-dihydropyridine Ca channel antagonists. Immunization of rabbits with dihydropyridine-protein conjugates resulted in the production of antibodies with high affinity and specificity for the 1,4-dihydropyridi...

Under mechanical milling conditions, direct reductive benzylizations of malononitrile and 4-methylaniline by aromatic aldehydes were achieved using a Hantzsch 1,4-dihydropyridine as the reductant.

We measured [3H]PN200-110 binding and patch-clamp currents in rabbit ventricular myocytes to determine if there is a disparity between the density of dihydropyridine-specific receptors and functional L-type calcium channels, as has been reported for skeletal muscle. The dihydropyridine receptor density was 74.7 +/- 4.2 fmol/mg protein (mean +/- SEM, Kd = 1.73 +/- 0.29 nM, n = 6) in ventricular ...

Current researches have showed that N3, N5-diaryl-2, 6-dimethyl -1, 4-dihydropyrine-3, 5- dicarboxamide analogues demonstrate notable anti-tubercular activity. In this study, Hantzsch condensation was used to design and synthesize new analogues of dihydropyridine (DHP). Different diary carboxamides were inserted at positions 3 and 5 of the DHP ring. 4(5)-chloro-2-ethyl-5(4)-imidazolyl moiety wa...