InChI=1/C21H18N2O2/c24-21-23(19-14-8-3-9-15-19)20(18-12-6-2-7-13-18)22(25-21)16-17-10-4-1-5-11-17/h1-15,20H,16H2/t20-/m0/s1 95B59BA601572A8E