InChI=1/C15H21N3O2/c1-11-5-7-13(8-6-11)17-15(20)18-9-3-4-14(10-18)16-12(2)19/h5-8,14H,3-4,9-10H2,1-2H3,(H,16,19)(H,17,20)/t14-/m0/s1/f/h16-17H DF01D7D18C69FC26