5-cyclopropyl-2-(4-fluoro-phenyl)-6-nitro-benzofuran-3-carboxylic acid ethyl ester

4-氟苯乙酮

4-氟苯甲酰乙酸乙酯

ethyl 2-(4-fluorophenyl)-5-hydroxy-6-nitro-1-benzofuran-3-carboxylate

ethyl 2-(4-fluorophenyl)-6-nitro-5-propan-2-yloxy-1-benzofuran-3-carboxylate