[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a marmesin with R-configuration. It has a role as a plant metabolite, a rat metabolite and a xenobiotic metabolite. It is an enantiomer of a (+)-marmesin."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch2][Ring1][O][C@H1][C][C][=C][Branch1][Ring2][O][Ring1][Branch1][C][=C][C][=Branch1][Ring2][=C][Ring1][#Branch1][C][=C][C][=Branch1][C][=O][O][Ring1][Branch2][O]"}]