[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is major microspecies at pH 7.3. It has a role as a fungal metabolite."}, {"from": "gpt", "value": "[C][C][=C][C][=Branch2][Ring2][=N][=C][Branch2][Ring2][#Branch1][C][=Branch2][Ring2][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][=C][Branch2][Ring1][Ring2][C][=Branch1][S][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C][=Branch1][C][=O][O][O-1][C][O][C][O][O]"}]