Any carboxylic ester derivative of an amino acid.
| Member | Definition | Role |
|---|
| 4-aminobutyric acid methyl ester | A methyl ester resulting from the formal condensation of gamma-aminobutyric acid with methanol. | methyl 4-aminobutanoate |
| benoxinate | A benzoate ester in which 4-amino-3-butoxybenzoic acid and 2-(diethylamino)ethanol have combined to form the ester bond; an ester-based local anaesthetic (ester "caine") used especially in ophthalmology and otolaryngology. | oxybuprocaine |
| butamben | An amino acid ester resulting from the formal condensation of the carboxy group of 4-aminobenzoic acid with the hydroxy group of butan-1-ol. Its local anaesthetic properties have been used for surface anaesthesia of the skin and mucous membranes, and for relief of pain and itching associated with some anorectal disorders. | butamben |
| oseltamivir | A cyclohexenecarboxylate ester that is the ethyl ester of oseltamivir acid. An antiviral prodrug (it is hydrolysed to the active free carboxylic acid in the liver), it is used to slow the spread of influenza. | oseltamivir |