InChI=1/C13H14N4O4/c18-8-1-3-16(4-2-8)11-6-10-9(5-12(11)17(20)21)13(19)15-7-14-10/h5-8,18H,1-4H2,(H,14,15,19)/f/h15H	0CF7AF1EF237BBAB