[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=C][C][=Branch2][Branch1][Branch1][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][=C][Branch1][Ring2][O][Ring1][#Branch1][C][Branch2][Ring1][P][C][C][=Branch2][Ring1][O][=C][C][=Branch1][C][=O][C][Ring1][=Branch1][Branch1][S][C][=Branch1][C][=O][C][Ring1][#Branch2][=C][Branch1][Branch1][C][Ring1][#C][=O][O][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is an organic heteropentacyclic compound and polyketide that is 11a,11b-dihydrobenzo[b]cyclopenta[2,3]indeno[4,5-e][1,4]dioxine-6,8,9(8aH)-trione which is substituted by hydroxy groups at positions 1 and 7, and by methyl groups at the 3, 8a, 11 and 11b positions. A cathepsin K inhibitor, it was first isolated from Paecilomyces carneus and subsequently obtained from Aspergillus nidulans cocultivated with a soil-dwelling actinomycete. It has a role as an EC 3.4.22.38 (cathepsin K) inhibitor and a fungal metabolite. It is a polyketide, a member of phenols and an organic heteropentacyclic compound."}]