期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 23, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/ijms23010270
关键词
acetylcholinesterase inhibitors; Alzheimer's disease; aminoalkanol derivatives; anticancer drugs
This study evaluated the inhibition efficacy of four aminoalkanol derivatives on acetylcholinesterase in vitro. The results showed that the inhibitory potency of the derivatives varied depending on the nature of the substituents, with isopropylamine and/or methyl substituents being the most effective. Docking studies suggested that the compounds bind to the peripheral anionic site rather than entering the catalytic pocket.
Two aminoalkanol derivatives of 1,7-diEthyl-8,9-diphenyl-4azatricyclo (5.2.1.02.6) dec-8-ene-3,5,10-trione and two derivatives of 1,7-diMethyl-8,9-diphenyl-4-azatricyclo (5.2.1.02.6) dec-8-ene-3,5,10-trione were evaluated in vitro for their inhibition efficacy of acetylcholinesterase. The Km, Vmax, slope angles of Lineweaver-Burk plots, Ki and IC50 values showed that all four aminoalkanol derivatives are competitive inhibitors of acetylcholinesterase whose inhibitory potency depends, to a varying extent, on the nature of the four different substituents present in the main compound structure. Studies have shown that the most potent acetylcholinesterase inhibitors are derivatives containing isopropylamine and/or methyl substituents in their structure. In contrast, dimethylamine and/or ethyl substituents seem to have a weaker, albeit visible, effect on the inhibitory potency of acetylcholinesterase. Additionally, docking studies suggest that studied compounds binds with the peripheral anionic site and not enter into the catalytic pocket due to the presence of the sterically extended substituent.
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