InChI=1/C13H17N3O4/c1-13(2,12(14)16-18)15-11(17)8-4-3-5-9-10(8)20-7-6-19-9/h3-5,18H,6-7H2,1-2H3,(H2,14,16)(H,15,17)/f/h15H,14H2/b16-12- 44F9FB0F6FC480DE