InChI=1S/C18H26O3/c1-2-15-14-9-12(14)13-10-16-18(21-16)11(13)7-5-3-4-6-8-17(19)20-15/h5,7,11-16,18H,2-4,6,8-10H2,1H3/b7-5-/t11-,12-,13+,14+,15+,16-,18+/m0/s1