InChI=1S/C24H19NO6/c1-15(26)29-19-11-7-17(8-12-19)24(18-9-13-20(14-10-18)30-16(2)27)23(28)25-21-5-3-4-6-22(21)31-24/h3-14H,1-2H3,(H,25,28)