7-methyl-1,4-dipyridin-2-yl-6H-pyrrolo[3,4-g]phthalazine-6,8(7H)-dione 、 1,4-dihydro-9,10-dimethoxy-1,4-methanoanthracene 以
氯仿 为溶剂,
以32%的产率得到(6β,6aα,7α,7aα,8β,15β,15aα,16α,16aα,17β)-6,6a,7,7a,8,15,15a,16,16a,17-decahydro-5,9,14,18-tetramethoxy-23-methyl-7,16-dipyridin-2-yl-23H-7,16[5',6']-endo-isoindolo-6,17:8,15-dimethanoheptacene-22,24-dione