[{"from": "human", "value": "Describe this molecule. [C][C][C][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][#Branch1][=C][Ring1][#Branch2][C][Ring1][=C][N][C][C][C][C][C][C][C][N][C][=C][C][C][C][C][C][Ring1][=Branch1][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][=C]"}, {"from": "gpt", "value": "The molecule is a secondary amino compound consisting of two molecules of tacrine that are linked together through their exocyclic amino groups by a heptane-1,7-diyl chain. Bis(7)-tacrine is an acetylcholinesterase (AChE)inhibitor (IC50 0.40 nM, >1,000 times more potent than tacrine). It has also been found to protect against H2O2 -induced apoptosis in rat pheochromocytoma cells. It has a role as an EC 3.1.1.7 (acetylcholinesterase) inhibitor, a neuroprotective agent, an EC 1.14.13.39 (nitric oxide synthase) inhibitor and an apoptosis inhibitor. It is functionally related to a tacrine."}]