ditert-butyl (1S,3R,4S,5R,6R,7R)-1-[(4S,5R)-4-acetyloxy-5-methyl-3-methylidene-6-phenylhexyl]-3-(aminomethyl)-7-[tert-butyl(dimethyl)silyl]oxy-6-[(E,4S,6S)-4,6-dimethyloct-2-enoyl]oxy-4-hydroxy-2,8-dioxabicyclo[3.2.1]octane-4,5-dicarboxylate 在
2,4,6-三甲基吡啶 、
盐酸 、
四丁基氟化铵 作用下,
以
四氢呋喃 、
1,4-二氧六环 、
二氯甲烷 为溶剂,
反应 11.33h,
生成
(1S,3R,4S,5R,6R,7R)-1-((4S,5R)-4-Acetoxy-5-methyl-3-methylene-6-phenyl-hexyl)-6-((E)-(4S,6S)-4,6-dimethyl-oct-2-enoyloxy)-4,7-dihydroxy-3-(trifluoromethanesulfonylamino-methyl)-2,8-dioxa-bicyclo[3.2.1]octane-4,5-dicarboxylic acid