InChI=1/C19H20N6O2/c1-25(12-17-21-18(24-27-17)14-8-5-9-20-11-14)19(26)16-10-15(22-23-16)13-6-3-2-4-7-13/h2-11,16-18,21,24H,12H2,1H3/t16-,17+,18-/m0/s1 B62439D64C7400A3