(3S)-7-hydroxy-10-methoxy-9-propan-2-yloxy-3-[tri(propan-2-yl)silyloxymethyl]-3,4-dihydrobenzo[g]isochromen-1-one 在
bis(acetylacetonate)oxovanadium 、
氧气 作用下,
以
二氯甲烷 为溶剂,
反应 15.0h,
以68%的产率得到(3S)-7-hydroxy-6-[(3S)-7-hydroxy-10-methoxy-1-oxo-9-propan-2-yloxy-3-[tri(propan-2-yl)silyloxymethyl]-3,4-dihydrobenzo[g]isochromen-6-yl]-10-methoxy-9-propan-2-yloxy-3-[tri(propan-2-yl)silyloxymethyl]-3,4-dihydrobenzo[g]isochromen-1-one