InChI=1/C18H28N8O2/c27-11-5-19-17-22-14-13(15(23-17)25-7-1-2-8-25)21-18(20-6-12-28)24-16(14)26-9-3-4-10-26/h27-28H,1-12H2,(H,19,22,23)(H,20,21,24)/f/h19-20H 6E4CF1EF1A1C7A16