InChI=1/C10H9NO3/c1-2-13-10(12)8-6-7-4-3-5-11-9(7)14-8/h3-6H,2H2,1H ethyl furo[2,3-b]pyridine-2-carboxylate furo[2,3-b]pyridine-2-carboxylic acid, ethyl ester