InChI=1/C18H15N3O/c1-13(22)19-17-12-16(14-8-4-2-5-9-14)20-18(21-17)15-10-6-3-7-11-15/h2-12H,1H3,(H,19,20,21,22)/f/h19H 62144B6E4A43400B