(1S,2R,3R,8R)-8-(tert-Butyl)-9-methoxycarbonyl-7-oxa-9-azabicyclo<4.3.0>non-5-en-2,3-dicarbonsaeureanhydrid                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以94%的产率得到(1S,2R,3R,6S,8R)-8-(tert-Butyl)-9-methoxycarbonyl-7-oxa-9-azabicyclo<4.3.0>nonan-2,3-dicarbonsaeureanhydrid