The<unk> s are a group of drugs (typically antibiotics) whose activity stems from the presence of a<unk>  ring, a large macrocyclic lactone ring to which one or more deoxy sugars, usually cladinose and desosamine, may be attached. The lactone rings are usually 14, 15 or 16-membered.<unk> s belong to the polyketide class of natural products.
Macrolide
Quinolone
Flavones
Flavonoid
Statin
Kanamycin
Anthracycline
Statins