InChI=1S/C20H34O4/c1-13(9-12-21)7-8-14-19(4)11-6-10-18(2,3)16(19)15(22)17(23)20(14,5)24/h7-9,14-17,21-24H,6,10-12H2,1-5H3/b8-7+,13-9-/t14-,15-,16-,17+,19-,20+/m1/s1