3-butenoic acid, 2-oxo-4-(phenylmethoxy)-, methyl ester InChI=1/C12H12O4/c1-15-12(14)11(13)7-8-16-9-10-5-3-2-4-6-10/h2-8H,9H2,1H3/b8-7 methyl 4-(benzyloxy)-2-oxobut-3-enoate