title: SYNTHESIS OF 2-ALPHA-HALO-4-EN-3-OXO-STEROIDS.
mesh_terms: D002626:Chemistry, Pharmaceutical; D006219:Halogens; D012106:Research; D013256:Steroids
chemical_list: D006219:Halogens; D013256:Steroids
keywords: CHEMISTRY, PHARMACEUTICAL; EXPERIMENTAL LAB STUDY; HALOGENS; STEROIDS