在
甲醇 、 samarium diiodide 作用下,
以
四氢呋喃 为溶剂,
生成 (1R,2R,3'S,6R,8S,9R)-3'-[tert-butyl(dimethyl)silyl]oxy-2',2',9-trimethylspiro[4-oxatricyclo[6.2.2.01,6]dodecane-2,6'-cyclohexane]-1',5,10-trione 、
(1R,2R,3'S,6R,8S,9S)-3'-[tert-butyl(dimethyl)silyl]oxy-2',2',9-trimethylspiro[4-oxatricyclo[6.2.2.01,6]dodecane-2,6'-cyclohexane]-1',5,10-trione