乙酸酐 、
O-(2,3,4-tri-O-benzyl-α-L-fucopyranosyl) trichloroacetimidate 、 Acetic acid (2R,3R,4S,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-2-((4aR,6R,7R,8R,8aS)-6-{2-[2-([1,3]dioxolan-2-ylmethoxy)-ethoxy]-ethoxy}-7-hydroxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy)-tetrahydro-pyran-3-yl ester 生成