InChI=1/C15H19N3O2/c1-4-11-8-13(14(19)18-10(11)2)17-9-12-6-5-7-16-15(12)20-3/h5-8,17H,4,9H2,1-3H3,(H,18,19)/f/h18H 5509B240005CDA09