ethyl 2-(2,6,6-trimethyl-4-oxo-3-(4-(pyrrolidin-1-ylsulfonyl)phenylthio)-4,5,6,7-tetrahydro-1H-indol-1-yl)acetate   、                                                                                      
borane tetrahydrofuran   、                                                                                      
乙醇   、                                                                                      
乙酸乙酯                                                                                                                                                              在
                                                                                                                                                                                 
ethyl 2-(2,5,5-trimethyl-4,5,6,7-tetrahydro-1H-indol-1-yl)acetate   、                                                                                                  Brine   、                                                                                                  
Sodium sulfate-III   、                                                                                                  silica gel   、                                                                                                  
ethyl 2-(2,6,6-trimethyl-3-(4-(pyrrolidin-1-ylsulfonyl)phenylthio)-4,5,6,7-tetrahydro-1H-indol-1-yl)acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃   、                                                                                         Brine                                                                                  为溶剂,
                                                                                                                                                    反应 2.17h,
                                                                                                                以The desired product, ethyl 2-(2,6,6-trimethyl-3-(4-(pyrrolidin-1-ylsulfonyl)phenylthio)-4,5,6,7-tetrahydro-1H-indol-1-yl)acetate (0.010 g, 0.020 mmol, 14.91% yield) was afforded的产率得到ethyl 2-(2,6,6-trimethyl-3-(4-(pyrrolidin-1-ylsulfonyl)phenylthio)-4,5,6,7-tetrahydro-1H-indol-1-yl)acetate