InChI=1/C17H17N3O/c1-2-9-20-10-8-15(21)16-14(20)11-13(19-17(16)18)12-6-4-3-5-7-12/h3-8,10-11H,2,9H2,1H3,(H2,18,19)/f/h18H2 1F15765DD1542C19