(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