InChI=1S/C25H28O6/c1-13(2)5-7-18-23(29)19(8-6-14(3)4)25-22(24(18)30)20(28)12-21(31-25)15-9-16(26)11-17(27)10-15/h5-6,9-11,21,26-27,29-30H,7-8,12H2,1-4H3/t21-/m0/s1