InChI=1/C18H15N3O2/c22-17-13-7-4-8-14-15(13)12(9-10-19-17)16(21-14)18(23)20-11-5-2-1-3-6-11/h1-8,21H,9-10H2,(H,19,22)(H,20,23)/f/h19-20H 40D3BBDD3C13E45C