5,6-dideoxy-1,2-O-isopropylidene-3-O-methyl-alpha-D-xylo-hex-5-enofuranose 、
dithiocarbonic acid [2-(2,5-dimethoxy-phenyl)-2-oxo-ethyl] ester ethyl ester 在
过氧化双月桂酰 作用下,
以
1,2-二氯乙烷 为溶剂,
以77%的产率得到Dithiocarbonic acid S-[4-(2,5-dimethoxy-phenyl)-1-((3aR,5S,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-4-oxo-butyl] ester O-ethyl ester