(R)-2-{(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)-propionylamino]-propionylamino}-pentanedioic acid 1-amide 5-octylamide 在
palladium on activated charcoal
氢气 、
溶剂黄146 作用下,
以90%的产率得到(R)-2-{(S)-2-[(R)-2-((3R,4R,5S,6R)-3-Acetylamino-2,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-4-yloxy)-propionylamino]-propionylamino}-pentanedioic acid 1-amide 5-octylamide