InChI=1S/C16H20N6O3/c1-20(2)14(23)12-10-17-11-13(19-12)21-8-4-16(5-9-21,15(24)25)22-7-3-6-18-22/h3,6-7,10-11H,4-5,8-9H2,1-2H3,(H,24,25)