InChI=1S/C15H22N2O/c18-15-6-3-5-14-11-8-12(10-17(14)15)13-4-1-2-7-16(13)9-11/h3,6,11-14H,1-2,4-5,7-10H2/t11-,12-,13-,14-/m0/s1