5,6-dideoxy-1,2-O-isopropylidene-3-O-methyl-alpha-D-xylo-hex-5-enofuranose 、 2,2-Dimethyl-propionic acid 2-(2-ethoxythiocarbonylsulfanyl-acetyl)-5-methoxy-phenyl ester 在
过氧化双月桂酰 作用下,
以
1,2-二氯乙烷 为溶剂,
以95%的产率得到2,2-Dimethyl-propionic acid 2-[4-ethoxythiocarbonylsulfanyl-4-((3aR,5S,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-butyryl]-5-methoxy-phenyl ester