3-benzofuranacetic acid, 2,3-dihydro-2-(methoxycarbonyl)-, methyl ester InChI=1/C13H14O5/c1-16-11(14)7-9-8-5-3-4-6-10(8)18-12(9)13(15)17-2/h3-6,9,12H,7H2,1-2H methyl 3-(2-methoxy-2-oxoethyl)-2,3-dihydro-1-benzofuran-2-carboxylate