[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a secondary ammonium ion resulting from the secondary amino group of ent-tamsulosin. The major species at pH 7.3. It is a conjugate acid of an ent-tamsulosin. It is an enantiomer of a tamsulosin(1+)."}, {"from": "gpt", "value": "[C][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][C][NH2+1][C@@H1][Branch1][C][C][C][C][=C][C][=Branch1][#Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][S][=Branch1][C][=O][=Branch1][C][=O][N]"}]