[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is the acetate ester formed between acetic acid and ethanol. It has a role as a polar aprotic solvent, an EC 3.4.19.3 (pyroglutamyl-peptidase I) inhibitor, a metabolite and a Saccharomyces cerevisiae metabolite. It is an acetate ester, an ethyl ester and a volatile organic compound."}, {"from": "gpt", "value": "[C][C][O][C][=Branch1][C][=O][C]"}]