InChI=1/C17H21N3O3/c21-16(19-15(11-4-5-11)12-6-7-12)18-13-2-1-3-14(10-13)20-8-9-23-17(20)22/h1-3,10-12,15H,4-9H2,(H2,18,19,21)/f/h18-19H E48562E86F64DAE2