3-Methoxy-2-methyl-4-((2R,3R,4R,5R,6S)-3,4,5-tris-benzyloxy-6-methyl-tetrahydro-pyran-2-yl)-phenol 、
1-O-acetyl-2,3,4-tri-O-benzyl-L-fucopyranose 在
calcium sulfate 、
scandium tris(trifluoromethanesulfonate) 作用下,
以
1,2-二氯乙烷 为溶剂,
以27%的产率得到(3S,4S,5R)-3,4,5-Tris-benzyloxy-6-[4-hydroxy-2-methoxy-3-methyl-5-((2R,3R,4R,5R,6S)-3,4,5-tris-benzyloxy-6-methyl-tetrahydro-pyran-2-yl)-phenyl]-hexan-2-one