[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an optically active form of 3-amino-3-phenylpropanoic acid having R-configuration. It is an enantiomer of a (S)-3-amino-3-phenylpropanoic acid. It is a tautomer of a (R)-3-ammonio-3-phenylpropanoate."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O][N]"}]