a comparison of the structure-activity relationships [ sar ] for a number of compounds containing a dihydropyridine ring were investigated in vitro for the inhibition of [ 3h ] -nitrendipine binding to membranes from rat ventricular muscle vs the inhibition of cyclic nucleotide phosphodiesterases [ cnuc-pde ] .
C0012315
dihydropyridine
C0028127
nitrendipine