InChI=1/C16H25N3O/c1-3-10-17-15-7-5-6-14(19-15)16(20)18-13(4-2)11-12-8-9-12/h5-7,12-13H,3-4,8-11H2,1-2H3,(H,17,19)(H,18,20)/t13-/m1/s1/f/h17-18H CE3F694E26D2CFC9