9-Hydroxy-4-hydroxymethyl-2,2-dimethyl-8-<<<(1,1-dimethylethyl)diphenylsilyl>oxy>methyl>-6-oxo-1,3,7-trioxaspiro<4.4>nonan-9-carboxylic acid phenylmethyl ester 在
四丁基氟化铵 、
溶剂黄146 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
生成 (4S,5S,8S,9R)-9-Hydroxy-4,8-bis(hydroxymethyl)-2,2-dimethyl-6-oxo-1,3,7-trioxaspiro<4.4>nonan-9-carboxylic acid phenylmethyl ester 、
(4R,5R,8R,9S)-9-Hydroxy-4,8-bis(hydroxymethyl)-2,2-dimethyl-6-oxo-1,3,7-trioxaspiro<4.4>nonan-9-carboxylic acid phenylmethyl ester