Acetic acid 5-acetoxy-2-((2R,4R,5S,6R)-4,5-diacetoxy-6-azidomethyl-tetrahydro-pyran-2-yl)-naphthalen-1-yl ester 在
N-溴代丁二酰亚胺(NBS) 、
溶剂黄146 作用下,
反应 3.0h,
以38%的产率得到Acetic acid 6-bromo-2-((2R,4R,5S,6R)-4,5-diacetoxy-6-azidomethyl-tetrahydro-pyran-2-yl)-5,8-dioxo-5,8-dihydro-naphthalen-1-yl ester