InChI=1S/C15H22O3/c1-9-4-5-12-10(2)7-14(16)15(17,13(12)6-9)11(3)8-18-14/h6,10,12-13,16-17H,3-5,7-8H2,1-2H3/t10-,12+,13-,14+,15+/m0/s1