Dihydropyridines
Dihydropyridine is a molecule based upon pyridine, and the parent of a class of molecules that have been semi-saturated with two substituents replacing one double bond. They are particularly well known in pharmacology as L-type calcium channel blockers.
Examples include: Amlodipine, Felodipine, Nicardipine, Nifedipine, Nimodipine