InChI=1S/C15H22O2/c1-9-11-4-5-12(13(16)17)15(11)7-6-10(8-15)14(9,2)3/h10-12H,1,4-8H2,2-3H3,(H,16,17)/t10-,11-,12-,15+/m1/s1