ETHYL 4-(2-HYDROXYBENZYLIDENEAMINO)BENZOATE

ETHYL 4-(2,4-DIMETHOXYPHENYLUREIDO)BENZOATE

ETHYL 4-(3-(4-(N-METHYLACETAMIDO)PHENYL)UREIDO)BENZOATE

ethyl 4-(3-phenoxypropyl)-1-piperazinecarboxylate hydrochloride

ETHYL 4-(4-CHLOROPHENYL)-2-(1,2,3,4,5,6-HEXAHYDRO-2-PYRIMIDINYL)-4-OXOBUTYRATE

Ethyl 4-(4-chlorophenyl)-3-oxo-1-thia-4,8-diazaspiro[4.5]decane-8-carboxylate

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

ETHYL 4-(PHENYLAZO)PHENYL CARBONATE

ETHYL 4-AMINO-2,6-DIOXO-1,2,5,6-TETRAHYDRO-3-PYRIDINECARBOXYLATE

Ethyl 4-bromo-3-hydroxy-5-methylbenzoate

ethyl 4-chloro-6-fluoroquinoline-3-carboxylate

ethyl 4-dibenzo[b,d]furan-2-yl-4-oxobutanoate

Ethyl 4-hydroxy-6-nitroquinoline-3-carboxylate

ETHYL 4-METHOXYOXANILATE

Ethyl 4-methyl-3-(methylamino)cyclohexanecarboxylate