title: Conformational studies. Part 5. Functionalisation of methyl groups in 4,4-dimethyl steroids.
mesh_terms: D000731:Androstanes; D055598:Chemical Phenomena; D002621:Chemistry; D008745:Methylation; D008968:Molecular Conformation; D009573:Nitrites; D010782:Photolysis; D014961:X-Ray Diffraction
chemical_list: D000731:Androstanes; D009573:Nitrites