InChI=1S/C19H26O3/c1-18-9-2-3-14(18)13-6-4-12-5-7-16(21)17(22)19(12,11-20)15(13)8-10-18/h5,7,12-15,20H,2-4,6,8-11H2,1H3/t12?,13-,14-,15-,18-,19-/m0/s1