2-[2',3,3,6a,7a-pentamethyl-2,6-bis(trimethylsilyloxy)spiro[1a,2,2a,4,5,6-hexahydronaphtho[2,3-b]oxirene-7,5'-oxolane]-2'-yl]ethyl 3-methylbut-2-enoate 、
四丁基氟化铵 生成
2-(2,6-Dihydroxy-2',3,3,6a,7a-pentamethylspiro[1a,2,2a,4,5,6-hexahydronaphtho[2,3-b]oxirene-7,5'-oxolane]-2'-yl)ethyl 3-methylbut-2-enoate