InChI=1S/C25H28O5/c1-16(2)5-4-6-17(3)7-8-18-13-19(24(29)15-23(18)28)9-12-22(27)21-11-10-20(26)14-25(21)30/h5,7,9-15,26,28-30H,4,6,8H2,1-3H3/b12-9+,17-7+