3β-hydroxy-pregn-5-en-17β-yl-3'-(p-fluoro)-phenylprop-2'-en-1'-one   、                                                                                      
溶剂黄146                                                                                                                                                              在
                                                                                                                                                                                 
一水合肼                                                                                                                                  作用下,
                                                                                                                                                                                                                            以82%的产率得到1-(5-(4-fluorophenyl)-4,5-dihydro-3-((10R,13S)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3-hydroxy-10,13-dimethyl-1H-cyclopenta[a]phenanthren-17-yl)pyrazol-1-yl)ethanone