InChI=1S/C17H25N3O2/c1-12(2)15(17(22)19-14-8-10-18-11-9-14)20-16(21)13-6-4-3-5-7-13/h8-13,15H,3-7H2,1-2H3,(H,20,21)(H,18,19,22)/t15-/m0/s1