[{"from": "human", "value": "Provide a description of this molecule. [C][C@H1][Branch1][Ring2][O][Ring1][Ring1][C@@H1][C][O][Ring1][Ring1]"}, {"from": "gpt", "value": "The molecule is a (R*,R*)-diepoxybutane. It is an enantiomer of a (R,R)-diepoxybutane."}]