tetramethylammonium triacetoxyborohydride   、                                                                                      19-[(aminocarbonyl)oxy]-3,11,17-tris[[(1,1-dimethylethyl)dimethylsilyl]oxy]-7-hydroxy-N-methoxy-N,2,4,10,12,14,16,18,20-nonamethyl-5-oxo-21-(phenylmethoxy)-8,13-heneicosadienamide   、                                                                                      
rochelle salt   、                                                                                      
二氯甲烷                                                                                                                                                              在
                                                                                                                                                                                 Brine   、                                                                                                  
magnesium sulfate   、                                                                                                  crude product   、                                                                                                  
乙酸乙酯   、                                                                                                  
正己烷                                                                                                                                  作用下,
                                                                                                                以
                                                                                         Acetonitrile aceticacid   、                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 15.5h,
                                                                                                                以to give 80 mg (80%) of the desired compound as a colorless oil的产率得到(2R,3S,4S,5S,7S,8Z,10S,11S,12S,13Z,16S,17R,18R,19S,20S)-19-[(aminocarbonyl)oxy]-3,11,17-tris[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5,7-dihydroxy-N-methoxy-N, 2,4,10,12,14,16,18,20-nonamethyl-21-(phenylmethoxy)-8, 13-heneicosadienamide