10-hydroxydipyreno<1,2-b:1',2'-d>furan-1,6-dione 、
dipyreno<1,2-b:1',2'-d>furan-1,6,7,12-tetrone 生成 9,14,24-trimethoxy-3-oxanonacyclo[21.6.2.25,8.02,18.04,17.06,15.07,12.020,30.027,31]tritriaconta-1(30),2(18),4,6,8,10,12,14,16,19,21,23,25,27(31),28,32-hexadecaene