InChI=1/C16H25N3O2/c1-12(2)16(21)18-10-14-3-4-15(17-9-14)19-7-5-13(11-20)6-8-19/h3-4,9,12-13,20H,5-8,10-11H2,1-2H3,(H,18,21)/f/h18H 6871EA47DC9877E6