InChI=1/C20H17N3O3/c1-2-12-9-18(24)26-19-13(12)7-8-17-14(19)10-23(11-25-17)20-21-15-5-3-4-6-16(15)22-20/h3-9H,2,10-11H2,1H3,(H,21,22)/f/h21H 18CAE66EE7F473EC