Acetic acid (2S,3R,4S,5R,6R)-3-acetoxy-5-benzyloxy-6-[(2R,3R,4S,5R,6R)-3,4-diacetoxy-5-benzyloxy-6-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-pyran-2-yloxymethyl]-2-phenylselanyl-tetrahydro-pyran-4-yl ester 在
溴 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
生成 Acetic acid (2R,3R,4S,5R,6R)-3-acetoxy-5-benzyloxy-6-(tert-butyl-dimethyl-silanyloxymethyl)-2-((2R,3R,4S,5R,6S)-4,5-diacetoxy-3-benzyloxy-6-bromo-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-4-yl ester