[{"from": "human", "value": "Describe this molecule. [C][C][C][C][=Branch1][C][=O][O][C][O][C][=Branch1][C][=O][C][Branch1][C][C][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is an acyloxyalkyl ester prodrug of butyric acid. Pivaloyloxymethylbutyrate inhibits histone deacetylase, resulting in cell differentiation, cell growth inhibition, and apoptosis. (NCI04)"}]