1(S),3(R)-bis(tert-butyldimethylsilyloxy)-20(R)-(3'-cyclopropyl-3'-oxoprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-triene SO2-adducts                                                                                                                                                              在
                                                                                                                                                                                 
N,N-diethylaniline borane   、                                                                                                  
(1S,2R)-(-)-1-氨基-2-茚醇   、                                                                                                  
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲基叔丁基醚   、                                                                                         
甲苯   、                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                生成                                                 SO2-adduct of 1(S),3(R)-bis(tert-butyl-dimethylsilyloxy)-20(R)-(3'-cyclopropyl-3'(S)-hydroxyprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-triene   、                                                                                             SO2-adduct of 1(S),3(R)-bis(tert-butyl-dimethylsilyloxy)-20(R)-(3'-cyclopropyl-3'(S)-hydroxyprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-triene   、                                                                                             
SO2-adduct of 1(S),3(R)-bis(tert-butyl-dimethylsilyloxy)-20(R)-(3'-cyclopropyl-3'(R)-hydroxyprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-triene