(E)-1-(4-((8-hydroxy-3,6-bis((2-methylbut-3-en-2-yl)oxy)-9-oxo-9H-xanthen-4-yl)oxy)but-2-en-1-yl)pyrrolidine-3,4-dione 以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
生成 8,10-dihydroxy-1,9-bis(3-methylbut-2-en-yl)-4-((2,4-dioxopyrrolidin-1-yl)methyl)-3,3a,4,5-tetrahydro-1,5-methano-1H,7H-furo[3,4-d]xanthene-7,13-dione 、 8,10-dihydroxy-1,11-bis(3-methylbut-2-en-yl)-4-((2,4-dioxopyrrolidin-1-yl)methyl)-3,3a,4,5-tetrahydro-1,5-methano-1H,7H-furo[3,4-d]xanthene-7,13-dione