3-[(1E)-3-Ethoxy-3-oxo-1-propen-1-yl]benzoic acid

ethyl 3,4-dimethylcyclohex-3-ene-1-carboxylate

3,4-二氢-6-甲基-2H-1-苯并吡喃-2-酮

ethyl 3-(1-benzylindol-3-yl)prop-2-enoate

ethyl 5-(2-oxopropylamino)pent-4-enoate