(R)-2-Bromo-2-{(4S,6S)-6-[(Z)-(3S,4S,5S)-4-(tert-butyl-dimethyl-silanyloxy)-6-(tert-butyl-diphenyl-silanyloxy)-3,5-dimethyl-hex-1-enyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-propionic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
三乙基硼   、                                                                                                  
三正丁基氢锡                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        以89%的产率得到(S)-2-{(4S,6S)-6-[(Z)-(3S,4S,5S)-4-(tert-Butyl-dimethyl-silanyloxy)-6-(tert-butyl-diphenyl-silanyloxy)-3,5-dimethyl-hex-1-enyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-propionic acid ethyl ester