[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an N-methylglycine that is glycine carrying two N-methyl substituents. It has a role as a human metabolite, a Daphnia magna metabolite and a mouse metabolite. It is a N-methyl-amino acid and a member of N-methylglycines. It is a tautomer of a N,N-dimethylglycine zwitterion."}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][C][=Branch1][C][=O][O]"}]