{4-(tert-butyldimethylsilanyloxy)-6-[2-hydroxy-2-(2-methylcyclopropyl)ethyl]-3-methyltetrahydropyran-2-yl}acetic acid 在
2,4,6-三氯苯甲酰氯 、
三乙胺 、
4-二甲氨基吡啶 作用下,
以
四氢呋喃 、
甲苯 为溶剂,
生成 (1S,5S,7R,9S,10S,11S,15S,17R,19S,20S)-9,19-Bis-(tert-butyl-dimethyl-silanyloxy)-10,20-dimethyl-5,15-bis-((1R,2R)-2-methyl-cyclopropyl)-4,14,21,22-tetraoxa-tricyclo[15.3.1.1
7,11]docosane-3,13-dione