InChI=1/C19H16N2O2/c1-2-19(14-8-4-3-5-9-14)17(22)15-10-7-13-21(15)18-16(23-19)11-6-12-20-18/h3-13H,2H2,1H3/t19-/m1/s1 94D2651765D888FC