8-(9,10-Dihydroxy-7-methoxy-3-methyl-1-oxo-3,4-dihydrobenzo[g]isochromen-8-yl)-10-hydroxy-7-methoxy-3-methyl-3,4-dihydrobenzo[g]isochromene-1,6,9-trione 生成 7-amino-8-(9,10-dihydroxy-7-methoxy-3-methyl-1-oxo-3,4-dihydrobenzo[g]isochromen-8-yl)-10-hydroxy-3-methyl-3,4-dihydrobenzo[g]isochromene-1,6,9-trione