Benzyl 2-acetamido-3,4-di-O-acetyl-β-D-glucopyranosid 、
methyl-4,5,7,8-tetra-O-acetyl-2,6-anhydro-2,3-dideoxy-D-manno-oct-2-enosonat 、
苯基硒基三氟甲烷磺酸酯 以
1,2-二氯乙烷 为溶剂,
反应 1.0h,
以35%的产率得到(2S,3S,4S,5S,6R)-4,5-Diacetoxy-2-((2R,3S,4R,5R,6R)-3,4-diacetoxy-5-acetylamino-6-benzyloxy-tetrahydro-pyran-2-ylmethoxy)-6-((R)-1,2-diacetoxy-ethyl)-3-phenylselanyl-tetrahydro-pyran-2-carboxylic acid methyl ester