InChI=1/C14H17N3O4/c1-9-2-3-11-10(6-9)17(14(19)21-11)8-16-4-5-20-12(7-16)13(15)18/h2-3,6,12H,4-5,7-8H2,1H3,(H2,15,18)/t12-/m0/s1/f/h15H2 52C1114EEA419B27