InChI=1/C18H17N3O3/c19-11-14-5-7-17(24-14)18(23)20-15-10-13(12-22)4-6-16(15)21-8-2-1-3-9-21/h4-7,10,12H,1-3,8-9H2,(H,20,23)/f/h20H 5BB980D0BDD578DB