InChI=1S/C20H24O5/c1-5-13(3)19(22)24-17-10-15(11-21)8-6-7-12(2)9-16-18(17)14(4)20(23)25-16/h5,8-9,11,16-18H,4,6-7,10H2,1-3H3/b12-9+,13-5-,15-8+