InChI=1S/C20H34O4/c1-7-11(2)15-14(23)17-19(5,24-15)10-12(21)16-18(3,4)9-8-13(22)20(16,17)6/h7,12-17,21-23H,8-10H2,1-6H3/b11-7+/t12-,13-,14-,15-,16+,17+,19-,20+/m1/s1