2,6-anhydro-3,4,5,7-tetra-O-benzyl-1-deoxy-D-gluco-hept-1-enitol 、 以
甲苯 为溶剂,
反应 40.0h,
以17.4%的产率得到(3R,5R,6R,7S,8R,9R)-3-[(2R,3R,4S,5R,6S)-6-methoxy-3,4,5-tris(phenylmethoxy)oxan-2-yl]-2-methyl-6,7,8-tris(phenylmethoxy)-9-(phenylmethoxymethyl)-1,10-dioxa-2-azaspiro[4.5]decane