CHOLINERGIC ENHANCERS WITH IMPROVED BLOOD-BRAIN BARRIER PERMEABILITY FOR THE TREATMENT OF DISEASES ACCOMPANIED BY COGNITIVE IMPAIRMENT
申请人:Maelicke Alfred
公开号:US20090253654A1
公开(公告)日:2009-10-08
The present invention refers to compounds that, in addition to enhancing the sensitivity to acetylcholine and choline, and their exogenous agonists, of neuronal cholinergic receptors and/or acting as cholinesterase inhibitors and/or neuroprotective agents, have enhanced blood-brain barrier permeability in comparison to their parent compounds. The compounds are derived (either formally by their chemical structure or directly by chemical synthesis) from natural compounds belonging to the class of amaryllidaceae alkaloids e.g., galantamine, narwedine and lycoramine, or from metabolites of said compounds. The compounds of the present invention can either interact as such with their target molecules, or they can act as “pro-drugs”, in the sense that after reaching their target regions in the body they are converted by hydrolysis or enzymatic attack to the original parent compound and react as such with their target molecules, or both. The compounds of this invention may be used as medicaments.
本发明涉及化合物,除了增强神经元胆碱能受体及/或作为胆碱酯酶抑制剂和/或神经保护剂的敏感性,还具有与其母体化合物相比增强的血脑屏障通透性。这些化合物是从天仙子科生物碱类天仙子碱、纳尔韦丁和丝兰碱或其代谢物中衍生出来的(无论是通过其化学结构或直接通过化学合成)。本发明的化合物可以直接与其靶分子相互作用,也可以作为“前药”,在到达体内的目标区域后,通过水解或酶攻击被转化为原始母体化合物,并与其靶分子反应,或两者兼有。本发明的化合物可用作药物。