乙酸酐   、                                                                                      (3S,6S,8S,8aS)-8-Benzyloxy-3-(tert-butyl-diphenyl-silanyloxymethyl)-6-hydroxy-hexahydro-indolizin-5-one                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                                                                                        反应 1.0h,
                                                                                                                以90%的产率得到Acetic acid (3S,6S,8S,8aS)-8-benzyloxy-3-(tert-butyl-diphenyl-silanyloxymethyl)-5-oxo-octahydro-indolizin-6-yl ester