(E)-N-methyl-N-methoxy-4-<(tert-butyldimethylsilyl)oxy>-2-butenamide                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
异丙醇   、                                                                                         
均三甲苯                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (6R,9aR)-6-(tert-Butyl-dimethyl-silanyloxymethyl)-2-methoxy-3-trimethylsilanyl-4,5,6,8,9,9a-hexahydro-7H-1-oxa-6a-aza-cyclopenta[e]azulen-4-ol