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2,2-Diethoxyethyl benzoate

Cis-4-aminocyclohexanecarboxylic acid hydrochloride

4-Aminocyclohexanecarboxylic acid tert-butyl ester

Ethyl 2-benzoylbut-2-enoate

Ethyl 2-acetylbut-2-enoate

Trans-3-aminocyclobutanecarboxylic acid tert-butyl ester

Cis-3-aminocyclobutanecarboxylic acid tert-butyl ester

3-Amino-cyclobutanemethanol hydrochloride

3-(Boc-amino)cyclobutanemethanol

Trans-3-(boc-amino)-cyclobutanemethanol