InChI=1/C15H14N2O3/c1-9(18)10-4-6-12(7-5-10)17-15(20)13(8-16)14(19)11-2-3-11/h4-7,11,17,20H,2-3H2,1H3/p-1/b15-13-/fC15H13N2O3/h20h/q-1 2F59315969A6EF90