InChI=1/C13H17N3O4/c1-2-20-6-5-14-11-7-9-3-4-13(17)15-10(9)8-12(11)16(18)19/h7-8,14H,2-6H2,1H3,(H,15,17)/f/h15H C0CBF56920A3D9E9