InChI=1/C17H16N2O/c1-12(13-7-3-2-4-8-13)18-17(20)16-11-14-9-5-6-10-15(14)19-16/h2-12,19H,1H3,(H,18,20)/t12-/m0/s1/f/h18H 6FEE60030D79BA6D