[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@@H1][C][N][C][C@H1][Ring1][=Branch1][C][=C][C][=N][C][=C][N][=C][Ring1][=Branch1][C][=C][Ring1][#C][Ring1][#Branch2]"}, {"from": "gpt", "value": "The molecule is a Partial Cholinergic Nicotinic Agonist and Cholinergic Receptor Agonist. The mechanism of action of varenicline is as a Partial Cholinergic Nicotinic Agonist and Cholinergic Agonist."}]