(8S,10S)-8-Acetyl-10-((2R,3R,4R,5S,6S)-3-fluoro-4-hydroxy-5-methoxy-6-methyl-tetrahydro-pyran-2-yloxy)-6,8,11-trihydroxy-1-methoxy-7,8,9,10-tetrahydro-naphthacene-5,12-dione 、
原甲酸三甲酯 在
溴 作用下,
以
1,4-二氧六环 、
甲醇 、
二氯甲烷 为溶剂,
反应 3.0h,
生成 (8S,10S)-8-(2-Bromo-1,1-dimethoxy-ethyl)-10-((2R,3R,4R,5S,6S)-3-fluoro-4-hydroxy-5-methoxy-6-methyl-tetrahydro-pyran-2-yloxy)-6,8,11-trihydroxy-1-methoxy-7,8,9,10-tetrahydro-naphthacene-5,12-dione