[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][C][C][C][C@@H1][C@@][Branch2][Ring1][Branch1][C@@H1][Branch1][P][C][=C][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch1][=Branch1][O][C][Ring1][=Branch1][=O][C][O][Branch1][C][C][O]"}, {"from": "gpt", "value": "The molecule is a gamma-lactone that is 3,4,5,7-tetrahydro-2H-furo[3,4-b]pyran substituted by heptyl, methyl, hydroxy, hydroxy, oxo and methyl groups at positions 2R, 3S, 3S, 4R, 5 and 7R, respectively. It is isolated from the endophytic fungus Phaeoacremonium sp. and exhibits antifungal activities. It has a role as an antifungal agent and a fungal metabolite. It is a tertiary alcohol, a secondary alcohol, a diol, a gamma-lactone and an organic heterobicyclic compound."}]