InChI=1S/C25H28O5/c1-15(2)5-12-19-23(28)20(13-6-16(3)4)25(30)22(24(19)29)21(27)14-9-17-7-10-18(26)11-8-17/h5-11,14,26,28-30H,12-13H2,1-4H3/b14-9+