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Methyl 4-bromo-3-oxopentanoate

Methyl 4-bromocrotonate

Methyl 4-bromo-l-phenylalaninate hydrochloride

Methyl 4-butylbenzoate

Methyl 4-chloro-1-(4-chlorophenyl)-6-oxo-1,6-dihydro-3-pyridazinecarboxylate

Methyl 4-chloro-2,2-dimethyl-4-pentenoate

Methyl 4-chloro-2-cyanobenzoate

Methyl 4-chloro-2-nitrobenzoate

Methyl 4-chloro-2-oxo-2h-chromene-3-carboxylate

Methyl 4-chloro-3,5-dinitrobenzoate