InChI=1/C14H14N2O6/c1-21-11-7-8(2-3-10(11)22-5-4-17)6-9-12(18)15-14(20)16-13(9)19/h2-3,6-7,17H,4-5H2,1H3,(H2,15,16,18,19,20)/p-1/fC14H13N2O6/h15H/q-1/b9-6- CCC5C1C1344681AC