InChI=1/C18H17N3O3/c1-10-6-7-13(15(22)8-10)20-18(24)11-9-21(2)14-5-3-4-12(19)16(14)17(11)23/h3-9,22H,19H2,1-2H3,(H,20,24)/f/h20H 4ACEF7C2B2E1B94A