[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][Branch1][O][C][O][C][=Branch1][C][=O][C@@H1][Ring1][=Branch1][O][C]"}, {"from": "gpt", "value": "The molecule is a butan-4-olide that is dihydrofuran-2(3H)-one substituted by a hydroxy group at position 3 and two methyl groups at position 4 (the R-stereoisomer). It has a role as a Saccharomyces cerevisiae metabolite. It is functionally related to a (R)-pantoic acid."}]