Pregnadienes

A pregnadiene is a diene derivative of a pregnane.Chlormadinone acetate (progestin)Cyproterone acetate (antiandrogen)Dydrogesterone (progestin)Megestrol acetate (progestin, antineoplastic, appetite stimulant)Canrenone (aldosterone antagonist)Medrogestone (progestin)Fluocinolone acetonide (glucocorticoid)Triamcinolone (glucocorticoid) A pregnadiene is a diene derivative of a pregnane. Dienes have two double bonds. The first is usually between carbon 4 and carbon 5 on ring A.