InChI=1/C15H22N2O2/c1-16-15(18)9-10-17(13-5-6-13)11-12-3-7-14(19-2)8-4-12/h3-4,7-8,13H,5-6,9-11H2,1-2H3,(H,16,18)/p+1/fC15H23N2O2/h16-17H/q+1 3CC09B6FCF7D168D