diethyl 3,6-dihydro-2,4-dimethyl-2,6-methano-1,3-benzothiazocine-5,11- dicarboxylates as calcium entry antagonists : new conformationally restrained analogues of hantzsch 1,4-dihydropyridines related to nitrendipine as probes for receptor-site conformation .
C0012315
dihydropyridines
C0028127
nitrendipine