[{"from": "human", "value": "Provide a brief overview of this molecule. [C][O][C@H1][C][C][=C][C][C][N][C@][Ring1][Branch1][Branch1][Ring2][C][Ring1][=Branch2][C][=C][Branch1][Branch1][C][C][Ring1][#Branch1][C][O][C][=Branch1][C][=O][C][Ring1][=Branch2]"}, {"from": "gpt", "value": "The molecule is an organic heterotetracyclic compound resulting from the partial hydrogenation of the 1,3-diene moiety of beta-erythroidine to give the corresponding 2-ene. It has a role as a nicotinic antagonist. It is an organic heterotetracyclic compound, a delta-lactone and a tertiary amino compound. It is functionally related to a beta-erythroidine."}]