期刊
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
卷 87, 期 -, 页码 63-70出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2014.09.048
关键词
Structure-activity relationships; Neurological agents; Alzheimer's disease; Carboline; Neuroprotective
Nine novel beta- and gamma-carboline derivatives bearing either methyl-, propargyl- or phenethyl-residues at the indole nitrogen were synthesized and tested as potential anti-Alzheimer drugs. Antagonism of recombinantly expressed NMDA receptors, inhibition of cholinesterases, and radical scavenging properties were determined for all compounds. Some were additionally tested in vivo for their ability to reverse scopolamine-induced cognitive impairment in an 8-arm radial maze experiment with rats. For the most promising candidates, the interaction with muscarinic M-1 receptors was also investigated. With this set of compounds assays the influence of the scaffold itself and the substituents can be investigated separately. 5-Methyl-gamma-carboline (6) was the most potent (0.25 mu mol/100 g b.w.) compound in the in vivo test and might be a good starting point for the development of novel anti-Alzheimer drugs. (C) 2014 Elsevier Masson SAS. All rights reserved.
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