[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a 2,3-dihydroxy-3-methylbutanoate. It has a role as a Saccharomyces cerevisiae metabolite. It is a conjugate base of a (R)-2,3-dihydroxy-3-methylbutanoic acid."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch1][#Branch2][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O]"}]