(3S)-3-cyclohexyl-7-hydroxy-10-methoxy-9-propan-2-yloxy-3,4-dihydrobenzo[g]isochromen-1-one 在
V2O3((C10H5(O)CHNCH(i-Pr)COO)2) 、
氧气 作用下,
以
二氯甲烷 为溶剂,
反应 8.0h,
以74%的产率得到(3S)-3-cyclohexyl-6-[(3S)-3-cyclohexyl-7-hydroxy-10-methoxy-1-oxo-9-propan-2-yloxy-3,4-dihydrobenzo[g]isochromen-6-yl]-7-hydroxy-10-methoxy-9-propan-2-yloxy-3,4-dihydrobenzo[g]isochromen-1-one