InChI=1/C17H18N4O/c18-16-15-14(11-5-7-13(22)8-6-11)9-21(12-3-1-2-4-12)17(15)20-10-19-16/h5-10,12,22H,1-4H2,(H2,18,19,20)/f/h18H2 979E5D5C3ADED7CA