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