allyl 2-{[(2S,4R)-6-azido-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4-O-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)hexanoyl]amino}acetate 在
吗啉 、
四(三苯基膦)钯 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以89%的产率得到2-{[(2S,4R)-6-azido-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4-O-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)hexanoyl]amino}acetic acid