InChI=1S/C25H26O5/c1-15(2)5-11-18-22(28)19-13-14-25(3,4)30-24(19)21(23(18)29)20(27)12-8-16-6-9-17(26)10-7-16/h5-10,12-14,26,28-29H,11H2,1-4H3/b12-8+