InChI=1S/C15H22O2/c1-9(2)7-13-14(16)11(4)12-8-15(13,17)6-5-10(12)3/h7,11-13,17H,3,5-6,8H2,1-2,4H3/t11-,12+,13-,15-/m0/s1