InChI=1/C16H25N3O2/c1-11-14(16(21)18-12(2)17-11)10-15(20)19-13-8-6-4-3-5-7-9-13/h13H,3-10H2,1-2H3,(H,19,20)(H,17,18,21)/f/h18-19H CDC649192727F1B4