[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is conjugate base of (S)-2-hydroxypropyl-CoM. It is a conjugate base of a (S)-2-hydroxypropyl-CoM."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][=N][C][S][C][C][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O]"}]