InChI=1/C17H17N3O/c1-12-5-3-6-14(9-12)15-7-4-8-20(17(15)21)10-16-13(2)18-11-19-16/h3-9,11H,10H2,1-2H3,(H,18,19)/f/h18H 8C5E3E081B08C69C