InChI=1/C18H32N4O/c1-5-19-18(20-6-2)21-15-16-11-9-10-12-17(16)23-14-13-22(7-3)8-4/h9-12H,5-8,13-15H2,1-4H3,(H2,19,20,21)/p+2/fC18H34N4O/h19-22H/q+2 9879D15B6FE24C39