benzyl 5-[(2S)-2-[[(2S)-1-[(1R,2S,5S)-2-methoxycarbonyl-6,6-dimethyl-3-azabicyclo[3.1.0]hexan-3-yl]-3,3-dimethyl-1-oxobutan-2-yl]carbamoylamino]-3,3-dimethylbutyl]-1,1-dioxo-1,2,5-thiadiazolidine-2-carboxylate                                                                                                                                                              在
                                                                                                                                         palladium 10% on activated carbon                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.5h,
                                                                                                                以94%的产率得到methyl (1R,2S,5S)-3-[(2S)-2-[[(2S)-1-(1,1-dioxo-1,2,5-thiadiazolidin-2-yl)-3,3-dimethylbutan-2-yl]carbamoylamino]-3,3-dimethylbutanoyl]-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxylate