tert-butyl (((2R,3a'R,6'R,6a'R)-2',2'-dimethyl-3-vinyl-6',6a'-dihydro-3a'H,5H-spiro[furan-2,4'-furo[3,4-d][1,3]dioxole]-6'-yl)methoxy)dimethylsilane 、
1,4-萘醌 以
甲苯 、
氯仿 为溶剂,
以60%的产率得到(3R,3a'R,6'R,6a'R)-6'-((tert-butyldimethylsilyloxy)methyl)-2',2'-dimethyl-6',6a'-dihydro-1H,3a'H-spiro[anthra[2,1-c]furan-3,4'-furo[3,4-d][1,3]dioxole]-6,11-dione