InChI=1/C16H25N3O/c1-2-9-17-15-12-14(8-11-18-15)16(20)19-10-7-13-5-3-4-6-13/h8,11-13H,2-7,9-10H2,1H3,(H,17,18)(H,19,20)/f/h17,19H D07608B6A215BD7F