[{"from": "human", "value": "Could you provide a description of this molecule? [C][N][C][C][C][=C][C][=Branch2][Branch1][P][=C][C][=C][Ring1][=Branch1][C@@H1][Ring1][#Branch2][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][=C][Branch2][Ring2][=Branch1][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C@H1][C][=C][Branch1][Branch1][O][Ring2][Ring1][#Branch1][C][=Branch1][S][=C][Branch1][O][C][=C][Ring1][#Branch1][C][C][N][Ring1][O][C][O][C][O][O][C][O][C]"}, {"from": "gpt", "value": "The molecule is a bisbenzylisoquinoline alkaloid that is (1beta)- berbaman which has been substituted by methyl groups at the 2 and 2' positions, by methoxy groups at the 6, 6', and 12 positions, and by a hydroxy group at position 7. Isolated from Stephania tetrandra, it has been found to possess neuroprotective and anti-tumour activity. It has a role as an antineoplastic agent, an anti-inflammatory agent, an antioxidant, an anti-HIV-1 agent, a neuroprotective agent and a plant metabolite. It is a macrocycle, a bisbenzylisoquinoline alkaloid and an aromatic ether."}]