[{"from": "human", "value": "Generate a molecule based on this description. The molecule is the conjugate base of N-methylaminoisobutyric acid obtained from the deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an alpha-(methylamino)isobutyric acid."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH2+1][C]"}]