Ethyl 4-fluorophenylglycolate

Ethyl 4-formylbenzoate

Ethyl 4-heptenoate, (4Z)-

Ethyl 4-heptenoate, (E)-

Ethyl 4-hydroxy-2, 3-dimethyl-8-((4-methylphenyl)sulfonyl)-7, 8-dihydro-6H-thieno(2, 3-b)azepine-5-carboxylate

Ethyl 4-hydroxy-2, 6, 6-trimethylcyclohex-2-ene-1-carboxylate

Ethyl 4-hydroxy-2-methyl-8-((4-methylphenyl)sulfonyl)-3-phenyl-7, 8-dihydro-6H-thieno(2, 3-b)azepine-5-carboxylate

Ethyl 4-hydroxy-2-oxopyrrolidine-1-acetate

Ethyl 4-hydroxy-2H-1, 2-benzothiazine-3-carboxylate 1, 1-dioxide

Ethyl 4-hydroxy-3, 5-diiodophenylacetate

Ethyl 4-hydroxy-3-methoxyphenylacetate

Ethyl 4-hydroxy-3-nitrobenzoate

Ethyl 4-hydroxy-4-(3-(trifluoromethyl)phenyl)piperidine-1-carboxylate

Ethyl 4-hydroxy-4-(p-tolyl)piperidine-1-carboxylate

Ethyl 4-hydroxy-4-phenylpiperidine-1-carboxylate

Ethyl 4-hydroxy-7-methyl-1, 8-naphthyridine-3-carboxylate

Ethyl 4-hydroxy-7-trifluoromethyl-3-quinolinecarboxylate

Ethyl 4-hydroxycyclohexanecarboxylate

Ethyl 4-hydroxypiperidine-1-carboxylate

Ethyl 4-iodobenzoate