title: Alkylated steroids. Part 1. 16alpha-substituted 17alpha-methylpregnanes.
mesh_terms: D000478:Alkylation; D055598:Chemical Phenomena; D002621:Chemistry; D008745:Methylation; D011245:Pregnadienes; D011283:Pregnenes; D013329:Structure-Activity Relationship
chemical_list: D011245:Pregnadienes; D011283:Pregnenes