InChI=1/C18H17N3O3/c1-21-14-4-2-3-5-16(14)24-15-9-8-12(10-13(15)17(21)22)20-18(23)19-11-6-7-11/h2-5,8-11H,6-7H2,1H3,(H2,19,20,23)/f/h19-20H CF828B43200BB02C