2,2-Dimethyl-propionic acid 2-[(4aR,5R,7R,8aS)-7-(tert-butyl-diphenyl-silanyloxymethyl)-2,2,4a-trimethyl-tetrahydro-pyrano[4,3-d][1,3]dioxin-5-yl]-ethyl ester 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以87%的产率得到2,2-Dimethyl-propionic acid 2-((4aR,5R,7R,8aS)-7-hydroxymethyl-2,2,4a-trimethyl-tetrahydro-pyrano[4,3-d][1,3]dioxin-5-yl)-ethyl ester