InChI=1/C16H25N3O2/c20-15(19-3-1-14(18-21)2-4-19)17-16-8-11-5-12(9-16)7-13(6-11)10-16/h11-13,21H,1-10H2,(H,17,20)/f/h17H E4EFCDBA1A871912