InChI=1S/C15H26O3/c1-9-12(16)7-13(17)11-6-5-10(14(2,3)18)8-15(9,11)4/h6,9-10,12-13,16-18H,5,7-8H2,1-4H3/t9-,10-,12-,13-,15-/m0/s1