InChI=1/C15H20N2O/c1-15(2,3)9-5-4-6-10-16-11-13-7-8-14(18)17-12-13/h4,6-8,12,16H,10-11H2,1-3H3,(H,17,18)/b6-4+/f/h17H 078C055B2273C6EA