InChI=1/C19H20N6O3/c1-26-13-6-11(7-14(27-2)16(13)28-3)25-5-4-12-10(9-25)8-22-18-15(12)17(20)23-19(21)24-18/h4-8H,9H2,1-3H3,(H4,20,21,22,23,24)/p+1/fC19H21N6O3/h22H,20-21H2/q+1 FE81F2BCF79A5877