N-[(4aR,6R,7R,8R,8aS)-8-((2R,3R,4S,5S,6R)-4-Allyloxy-3,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-6-(4-methoxy-benzyloxy)-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl]-acetamide 在
盐酸 、 sodium cyanoborohydride 作用下,
以
四氢呋喃 为溶剂,
以81%的产率得到N-[(2R,3R,4R,5S,6R)-4-((2R,3R,4S,5S,6R)-4-Allyloxy-3,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-6-benzyloxymethyl-5-hydroxy-2-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl]-acetamide