3,17-Dioxo-7α-methylandrosta-1,4-dien   、                                                                                      
6α-methylandrosta-1,4-diene-3,17-dione   、                                                                                      
雄甾-1,4-二烯-3,17-二酮                                                                                                                                                                                                                                                                                                          以above results in the preparation of 7α-methyl-1β,2β-methylene-4-androstene-3,17-dione and 6α-methyl-1β,2β-methylene-4-androstene-3,17-dione的产率得到7alpha-Methyl-1beta,2beta-methylene-4-androstene-3,17-dione