InChI=1S/C24H26O7/c1-11(2)6-7-12-19-16(9-14(25)23(12)29-5)30-17-10-15-13(21(27)20(17)22(19)28)8-18(26)24(3,4)31-15/h6,9-10,18,25-27H,7-8H2,1-5H3