((2-Bromo-acetyl)-{[(2R,3R,4S,5R,6R)-3,4-diacetoxy-6-acetoxymethyl-5-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-ylcarbamoyl]-methyl}-amino)-acetic acid tert-butyl ester 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以89%的产率得到((2-Bromo-acetyl)-{[(2R,3R,4S,5R,6R)-3,4-diacetoxy-6-acetoxymethyl-5-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-ylcarbamoyl]-methyl}-amino)-acetic acid