InChI=1/C18H17N3O3/c1-12-6-7-16(13(2)8-12)20-18(23)21-17(22)11-24-15-5-3-4-14(9-15)10-19/h3-9H,11H2,1-2H3,(H2,20,21,22,23)/f/h20-21H 641846CACB39BEF3