(1R,3R,4R,8S)-8-Hydroxy-3-((1R,2R)-1,2,3-trihydroxy-propyl)-1-[(2R,3R,4S,5R,6R)-3,4,5-tris-benzyloxy-6-(2-trimethylsilanyl-ethoxy)-tetrahydro-pyran-2-ylmethoxy]-2-oxa-5-aza-bicyclo[2.2.2]octan-6-one 、
苯甲酰氯 在
吡啶 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
以79%的产率得到Benzoic acid (2R,3R)-2,3-dihydroxy-3-{(1R,3R,4R,8S)-8-hydroxy-6-oxo-1-[(2R,3R,4S,5R,6R)-3,4,5-tris-benzyloxy-6-(2-trimethylsilanyl-ethoxy)-tetrahydro-pyran-2-ylmethoxy]-2-oxa-5-aza-bicyclo[2.2.2]oct-3-yl}-propyl ester