β-1-deoxy-1-C-(phenylthio)-2-O-(1'-oxo-2'-diazo-2'-(methoxycarbonyl)ethyl)-3,4-O-isopropylidene-D-arabinopyranose 在
rhodium(II) acetate dimer 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以69%的产率得到(3aR,5aS,9aS,9bR)-2,2-Dimethyl-8-oxo-6-phenyl-3a,4,5a,8,9a,9b-hexahydro-1,3,5,9-tetraoxa-6λ
4-thia-cyclopenta[a]naphthalene-7-carboxylic acid methyl ester