InChI=1/C15H20N2O/c1-3-4-7-16-10-13-9-12-6-5-11(2)8-14(12)17-15(13)18/h5-6,8-9,16H,3-4,7,10H2,1-2H3,(H,17,18)/p+1/fC15H21N2O/h16-17H/q+1 E05B257ED474D9C2