InChI=1/C19H20N4O2/c1-12-6-8-13(9-7-12)16-10-18(25-22-16)19(24)21-15-4-3-5-17-14(15)11-20-23(17)2/h6-11,15H,3-5H2,1-2H3,(H,21,24)/t15-/m0/s1/f/h21H 6CAFB91965A22E5D