InChI=1/C18H23NO2/c1-4-20-17-7-5-6-16(11-19)18(17)21-12-15-9-13(2)8-14(3)10-15/h5-10H,4,11-12,19H2,1-3H3/p+1/fC18H24NO2/h19H/q+1 AA2D1E56297A9169