InChI=1/C18H15N3O2/c22-17(20-15-3-1-2-14-11-19-21-18(14)15)7-5-12-4-6-16-13(10-12)8-9-23-16/h1-7,10-11H,8-9H2,(H,19,21)(H,20,22)/b7-5+/f/h20-21H CE34A30ABE4568F7