InChI=1/C19H20N4O4/c1-11-6-8-12(9-7-11)22-23-16(18(26)15(25)10-24)17-19(27)21-14-5-3-2-4-13(14)20-17/h2-9,15,18,22,24-26H,10H2,1H3,(H,21,27)/b23-16+/t15-,18+/m0/s1/f/h21H	DC46EAF9F48BFB4D