InChI=1S/C20H28O5/c1-17-6-3-7-18(2,16(23)24)14(17)13(15(21)22)19-8-11(4-5-12(17)19)20(9-19)10-25-20/h11-14H,3-10H2,1-2H3,(H,21,22)(H,23,24)/p-2/t11-,12?,13-,14?,17+,18-,19-,20+/m1/s1