InChI=1/C13H14N2O3/c1-3-10-12(16)14-11(15-13(10)17)8-4-6-9(18-2)7-5-8/h4-7H,3H2,1-2H3,(H2,14,15,16,17)/p-1/fC13H13N2O3/h14H/q-1 8B9DB15C5802E32F