(R)-4-{(S)-2-[(R)-2-((4aR,6S,7R,8R,8aS)-7-Acetylamino-6-benzyloxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy)-4-methyl-pentanoylamino]-propionylamino}-4-carbamoyl-butyric acid benzyl ester                                                                                                                                                              在
                                                                                                                                         
钯                                                                                                                                                                                                                               氢气   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以84.8%的产率得到(R)-4-{(S)-2-[(R)-2-((3R,4R,5S,6R)-3-Acetylamino-2,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-4-yloxy)-4-methyl-pentanoylamino]-propionylamino}-4-carbamoyl-butyric acid