InChI=1S/C24H21NO8/c1-3-10-9-12(25-7-8-26)16-17(14(10)24(32)33-2)23(31)18-19(22(16)30)21(29)15-11(20(18)28)5-4-6-13(15)27/h4-6,9,25-27,30-31H,3,7-8H2,1-2H3