ETHYL 4-(2-PYRIDYLMETHYL)-1-PIPERAZINECARBOXYLATE

ETHYL 4-(3-(2-CHLOROPHENYL)UREIDO)BENZOATE

Ethyl 4-(3-bromophenyl)thiazole-2-carboxylate

ETHYL 4-(3,4-DIMETHOXYBENZYLAMINO)BENZOATE

Ethyl 4-(4-chlorophenyl)-2-methylthiazole-5-carboxylate

ETHYL 4-(4-TERT-BUTYLPHENYL)-2-({[(2-METHYL-6,7-DIHYDRO-5H-CYCLOPENTA[4,5]THIENO[2,3-D]PYRIMIDIN-4-YL)SULFANYL]ACETYL}AMINO)-3-THIOPHENECARBOXYLATE

Ethyl 4-(benzyloxy)benzoate

ETHYL 4-ACETAMIDO-ALPHA-CYANOCINNAMATE

Ethyl 4-aminotetrahydro-2H-pyran-4-carboxylate

ETHYL 4-CHLORO-2-(4-FLUOROSULFONYLPHENYL)-6-QUINOLINECARBOXYLATE

ETHYL 4-CHLOROPHENYLCARBAMATE

ethyl 4-hydroxy-3-(1-piperidinylmethyl)benzoate hydrochloride

Ethyl 4-isopropyl-1-piperazinecarboxylate

ETHYL 4-METHYL-2-((TRIFLUOROACETYL)AMINO)-1,3-THIAZOLE-5-CARBOXYLATE

ETHYL 4-NITRO-3-PHENYLBUTYRATE