InChI=1S/C15H26O3/c1-9(2)11-7-8-14(4)12(16)6-5-10(3)15(14,18)13(11)17/h9,11-13,16-18H,3,5-8H2,1-2,4H3/t11-,12+,13+,14-,15-/m0/s1