[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][N][C][C][C][C@@H1][Branch1][Branch1][C][C][Ring1][#Branch1][N][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][Ring2][=N][Ring1][O][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Cl]"}, {"from": "gpt", "value": "The molecule is the (S)-enantiomer of azelastine. It is an enantiomer of a (R)-azelastine."}]