InChI=1S/C15H22O3/c1-9-4-10(7-16)13(8-17)14(18)12-6-15(2,3)5-11(9)12/h4,7-9,11-14,18H,5-6H2,1-3H3/t9-,11+,12+,13-,14-/m0/s1