乙酰丙酸酐 、 Benzoic acid (2S,3R,4S,5R,6S)-4-benzyloxy-6-(tert-butyl-dimethyl-silanyloxymethyl)-5-hydroxy-2-pent-4-enyloxy-tetrahydro-pyran-3-yl ester 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
生成
Benzoic acid (2S,3R,4S,5R,6S)-4-benzyloxy-6-(tert-butyl-dimethyl-silanyloxymethyl)-5-(4-oxo-pentanoyloxy)-2-pent-4-enyloxy-tetrahydro-pyran-3-yl ester