InChI=1/C18H21N3O2/c1-4-14-11-21(12-17(22)20-3)16(5-2)18(14)23-15-8-6-13(10-19)7-9-15/h6-9,11H,4-5,12H2,1-3H3,(H,20,22)/f/h20H F462928D08C1B84E