Acetic acid (1R,2R,3S,4S,5R)-4-((2S,3R,4R,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-3-allyloxycarbonylamino-tetrahydro-pyran-2-yloxy)-2-(2,2,2-trichloro-ethoxycarbonyloxy)-6,8-dioxa-bicyclo[3.2.1]oct-3-yl ester 在
锌铜偶 、
三氟甲磺酸三甲基硅酯 、
溶剂黄146 作用下,
以
二氯甲烷 为溶剂,
生成
3-O-Acetyl-2,4-di-O-(3,4,6-tri-O-acetyl-2-N-allyloxycarbonylamino-2-deoxy-β-D-glucopyranosyl)-1,6-anhydro-β-D-mannopyranose