InChI=1S/C25H24O7/c1-10(2)5-6-12-20(28)19-17-14(25(3,4)32-24(17)22(12)30)9-13-21(29)18-15(27)7-11(26)8-16(18)31-23(13)19/h5,7-8,14,26-28,30H,6,9H2,1-4H3