InChI=1/C18H23N3O3/c1-20(2)18(23)15-8-6-14(7-9-15)11-19-17(22)13-21(3)12-16-5-4-10-24-16/h4-10H,11-13H2,1-3H3,(H,19,22)/p+1/fC18H24N3O3/h19,21H/q+1 FD5D4C6D11A4F1E2