tert-butyl (1S,2S,6R,7R,9R)-12,12-dimethyl-4-oxo-7-[[(1S,2R,6R,8R,9S)-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[7.3.0.02,6]dodecan-8-yl]methoxy]-3,8,11,13-tetraoxa-5-azatricyclo[7.4.0.02,6]tridecane-5-carboxylate 在
lithium hydroxide 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 0.33h,
以77%的产率得到tert-butyl N-[(4aR,6R,7R,8S,8aS)-8-hydroxy-2,2-dimethyl-6-[[(1S,2R,6R,8R,9S)-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[7.3.0.02,6]dodecan-8-yl]methoxy]-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl]carbamate