[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is under investigation in clinical trial NCT01971385 (Safety and Efficacy of Squaric Acid Dibutyl Ester for the Treatment of Herpes Labialis)."}, {"from": "gpt", "value": "[C][C][C][C][O][C][=C][Branch1][=Branch2][C][=Branch1][C][=O][C][Ring1][Branch1][=O][O][C][C][C][C]"}]