InChI=1/C13H17N3O4/c1-15-6-4-10(5-7-15)20-13(17)11-3-2-9(16(18)19)8-12(11)14/h2-3,8,10H,4-7,14H2,1H3/p+1/fC13H18N3O4/h15H/q+1 B6D49F5A2DAD6C49