[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a member of the class of cyclopentanes that is cyclopentane substituted by a 1-methylbutyl group. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C][C][C][Branch1][C][C][C][C][C][C][C][Ring1][Branch1]"}]