bay k 8644 ( methyl-1,4-dihydro-2,6-dimethyl-3-nitro-4- ( 2-trifluoromethylphenyl ) pyridine-5-carboxylate ) and cgp 28 392 ( ethyl-4 ( 2-difluoromethoxyphenyl ) -1,4,5,7-tetrahydro-2-methyl-5-++ +oxofuro- [ 3,4-b ] pyridine-3-carboxylate ) are closely related in structure to nifedipine and other 1,4-dihydropyridine ca2+ channel antagonists .
C0028066
nifedipine
C0012315
dihydropyridine