ETHYL 4-(3-(4-CHLORO-2-NITROPHENYL)UREIDO)BENZOATE

ETHYL 4-(3,4-DIMETHOXYBENZYLAMINO)BENZOATE

Ethyl 4-(4-chlorophenyl)-2-thiazole carboxylate

ETHYL 4-(5-CHLORO-2-METHOXYPHENYLUREIDO)BENZOATE

ethyl 4-(tert-pentylamino)butylcarbamate hydrochloride

Ethyl 4-anilino-6-methoxy-3-quinolinecarboxylate

Ethyl 4-chloro-5-methylthieno[2,3-d]pyrimidine-6-carboxylate

ethyl 4-formyl-2,5-dimethyl-1-phenyl-1H-pyrrole-3-carboxylate

Ethyl 4-isopropyl-1-piperazinecarboxylate

Ethyl 4-methyl-2-(2-thienyl)-thiazole-5-carboxylate

ethyl 4-oxo-2,2-diphenylpentanoate

Ethyl 4-tosylpiperazine-1-carboxylate

Ethyl 4,6-dimethyl-2-pyridinylcarbamate

Ethyl 5-[(dimethylamino)methyl]-2-furoate

Ethyl 5-(4-(methylthio)phenyl)isoxazole-3-carboxylate