1,3,5-Tri-O-benzoyl-myo-inositol 、
Ethyl hydrogen 2,3-O-cyclohexylidene-D-tartrate 在
N-甲基吗啉 、
4-二甲氨基吡啶 、
甲基磺酰氯 作用下,
以
四氢呋喃 为溶剂,
生成 (2R,3R)-1,4-Dioxa-spiro[4.5]decane-2,3-dicarboxylic acid ethyl ester (1R,2S,3R,4R,5R,6R)-2,4,6-tris-benzoyloxy-3,5-dihydroxy-cyclohexyl ester 、 (2R,3R)-1,4-Dioxa-spiro[4.5]decane-2,3-dicarboxylic acid ethyl ester (1R,2S,3S,4R,5S,6R)-2,4,6-tris-benzoyloxy-3,5-dihydroxy-cyclohexyl ester