[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a Skin Lightening Agent. The mechanism of action of mequinol is as a Melanin Synthesis Inhibitor. The physiologic effect of mequinol is by means of Depigmenting Activity."}, {"from": "gpt", "value": "[C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O]"}]