InChI=1/C18H19N3O3/c22-16-18(9-5-2-6-10-18)20-17(23)21(16)11-14-12-24-15(19-14)13-7-3-1-4-8-13/h1,3-4,7-8,12H,2,5-6,9-11H2,(H,20,23)/f/h20H 217D9281F365B7A9