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