Benzoic acid (2R,4aR,6S,7R,8R,8aS)-7-(3,4-dimethyl-2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-6-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yl ester 在
三甲基铵三氧化硫共聚物 、
对甲苯磺酸 、
乙硫醇 作用下,
以
二氯甲烷 、
N,N-二甲基甲酰胺 为溶剂,
生成 Benzoic acid (2S,3R,4R,5S,6R)-3-(3,4-dimethyl-2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-2-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-5-hydroxy-6-sulfooxymethyl-tetrahydro-pyran-4-yl ester