InChI=1S/C25H30O5/c1-16(2)5-4-6-17(3)7-11-20-18(9-14-23(28)25(20)30)8-13-22(27)21-12-10-19(26)15-24(21)29/h5,7,9-10,12,14-15,26,28-30H,4,6,8,11,13H2,1-3H3/b17-7+