Sulfuric acid (2S,3R,4R,5R,6R)-3-azido-2-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-5-hydroxy-6-hydroxymethyl-tetrahydro-pyran-4-yl ester 2,2,2-trifluoro-ethyl ester 在
三甲基铵三氧化硫共聚物 、
柠檬酸 作用下,
以
N,N-二甲基甲酰胺 、
乙腈 为溶剂,
生成 Sulfuric acid (2S,3R,4R,5R,6R)-3-azido-2-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-5-hydroxy-6-(2,2,2-trifluoro-ethoxysulfonyloxymethyl)-tetrahydro-pyran-4-yl ester 2,2,2-trifluoro-ethyl ester