title: Reactions of  -ketolic and other 21-hydroxy steroids with phosgene. I. Preparation and properties of Bis(pregnan-21-yl) carbonates and 17,21-cyclic carbonates.
mesh_terms: D002254:Carbonates; D055598:Chemical Phenomena; D002621:Chemistry; D006914:Hydroxysteroids; D007664:Ketosteroids; D010705:Phosgene; D011278:Pregnanes
chemical_list: D002254:Carbonates; D006914:Hydroxysteroids; D007664:Ketosteroids; D011278:Pregnanes; D010705:Phosgene