InChI=1S/C25H24O6/c1-13(2)5-6-16-18(26)11-20-21(22(16)28)23(29)17(12-30-20)15-9-14-7-8-25(3,4)31-24(14)19(27)10-15/h5,7-12,26-28H,6H2,1-4H3