title: D-nor steroids. II. Carbonium ion reactions yielding C-homo-D-bisnor steroids.
mesh_terms: D002244:Carbon; D055598:Chemical Phenomena; D002621:Chemistry; D004962:Estranes; D007477:Ions; D009654:Norsteroids
chemical_list: D004962:Estranes; D007477:Ions; D009654:Norsteroids; D002244:Carbon