InChI=1/C18H17N3O3/c1-21-11-14(13-4-2-3-5-15(13)21)20-18(22)19-12-6-7-16-17(10-12)24-9-8-23-16/h2-7,10-11H,8-9H2,1H3,(H2,19,20,22)/f/h19-20H 6C5B2A13F79858BB