[{"from": "human", "value": "Provide a description of this molecule. [C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][C@@H1][Branch1][Branch1][C@H1][Ring1][Branch2][O][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][C]"}, {"from": "gpt", "value": "The molecule is a methoxyisoflavan that is (S)-isoflavan substituted by methoxy groups at positions 6 and 3' and hydroxy groups at positions 4 and 4'. It has been isolated from Taxus yunnanensis and exhibits inhibitory activity against CYP3A4. It has a role as a plant metabolite. It is a member of hydroxyisoflavans and a methoxyisoflavan. It is functionally related to a (S)-isoflavan."}]