InChI=1/C15H32N4O2/c1-11(2)7-8-14(20)17-18-15(21)16-9-10-19(12(3)4)13(5)6/h11-13H,7-10H2,1-6H3,(H,17,20)(H2,16,18,21)/p+1/fC15H33N4O2/h16-19H/q+1 8F5B7B889D1A5397