the molecular structure of the dihydropyridine ca2+ antagonist felodipine ( ethyl methyl 1,4-dihydro-2,6-dimethyl-4- ( 2,3-dichlorophenyl ) -3,5-pyridinedicarboxy late ) has been determined by x-ray crystallographic methods .
C0012315
dihydropyridine
C0015772
felodipine