InChI=1S/C25H24O7/c1-13(2)4-6-17-22(30)21-19(29)11-20-16(8-9-25(3,12-26)32-20)24(21)31-23(17)15-7-5-14(27)10-18(15)28/h4-5,7-11,26-29H,6,12H2,1-3H3