InChI=1/C18H26N4O2/c1-3-4-5-6-9-24-15-7-8-16(23-2)13(11-15)10-14-12-21-18(20)22-17(14)19/h7-8,11-12H,3-6,9-10H2,1-2H3,(H4,19,20,21,22)/f/h19-20H2 22A635E456000E0B