exo,exo-8,15-bis(2,2,2-trifluoroethoxy)hexacyclo<7.5.1.03.13.05.12.07.11.010.14>pentadecane-2,6-dione-4-spiro-1',4',5'-dimethylcyclohex4'-ene-2'-spiro-2"-cyclopentane-1",3"-dione 在
potassium hydride 作用下,
以
四氢呋喃 为溶剂,
以62%的产率得到3,4-dimethyl-20-hydroxy-16,18-bis(2,2,2-trifluoroethoxy)nonacyclo<19.2.1.0
1.6.0
6.13.0
7.20.0
8.12.0
9.19.0
10.17.0
11.15>tetracos-3-ene-14,23,24-trione