2-(carboxymethoxy)-5-chlorobenzoic acid

2-氯-1-(5-氯-2-羟基苯基)乙酮

methyl 5-chloro-2-(2-ethoxy-2-oxoethoxy)benzoate

ethyl 5-chloro-3-hydroxy-1-benzofuran-2-carboxylate

重氮甲烷