(7S,9R)-9-Chloro-7-((1R,3R)-3-hydroxy-1-methyl-butoxy)-6,11-dimethoxy-9-methyl-7,8,9,10-tetrahydro-naphthacene-5,12-dione 在
pyridinium chlorochromate 作用下,
以
二氯甲烷 为溶剂,
反应 17.5h,
以95%的产率得到(7S,9R)-9-Chloro-6,11-dimethoxy-9-methyl-7-((R)-1-methyl-3-oxo-butoxy)-7,8,9,10-tetrahydro-naphthacene-5,12-dione