InChI=1/C16H20N6O3/c23-16(11-17-12-6-3-4-7-13(12)22(24)25)18-10-15-20-19-14-8-2-1-5-9-21(14)15/h3-4,6-7,17H,1-2,5,8-11H2,(H,18,23)/f/h18H 74DF9639BEA642E7