[{"from": "human", "value": "Describe this molecule. [C][=C][C@@][Branch1][=Branch1][O][C][Ring1][Branch1][=O][Branch1][#Branch1][C][C][=Branch1][C][=O][O][Cl]"}, {"from": "gpt", "value": "The molecule is an optically active form of (2-chloro-5-oxo-2,5-dihydro-2-furyl)acetic acid having R-configuration. It has a role as a bacterial metabolite. It is a conjugate acid of a (R)-(2-chloro-5-oxo-2,5-dihydro-2-furyl)acetate."}]