[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a diether that is butane substituted by a 1-ethoxyethoxy group at position 1. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C][C][C][O][C][Branch1][C][C][O][C][C]"}]