dimethyl 1-(((1R,3R)-5,9,10-trimethoxy-1-methyl-3,4-dihydro-1H-benzo[g]isochromen-3-yl)methyl)-1H-1,2,3-triazole-4,5-dicarboxylate 在
ammonium cerium (IV) nitrate 、
水 作用下,
以
乙腈 为溶剂,
反应 0.67h,
以50%的产率得到dimethyl 1-(((1R,3R)-9-methoxy-1-methyl-5,10-dioxo-3,4,5,10-tetrahydro-1H-benzo[g]isochromen-3-yl)methyl)-1H-1,2,3-triazole-4,5-dicarboxylate