InChI=1/C19H18N2O/c1-2-5-14(6-3-1)21-9-10-22-19-15-7-4-8-16-18(15)13(12-20-16)11-17(19)21/h1-8,12,17,19-20H,9-11H2/t17-,19-/m1/s1 B9E9622A97E0A2C3