InChI=1/C17H20N2O2/c1-2-7-18-16(14-6-9-21-11-14)13-4-3-12-5-8-19-17(20)15(12)10-13/h3-4,6,9-11,16,18H,2,5,7-8H2,1H3,(H,19,20)/p+1/t16-/m0/s1/fC17H21N2O2/h18-19H/q+1 284D6D996F7A56D2