Synthesis and biological evaluation of 7H-thiazolo[3,2-b]-1,2,4-triazin-7-one derivatives as dual binding site acetylcholinesterase inhibitors

Add time:08/04/2019    Source:sciencedirect.com

A series of 7H-thiazolo[3,2-b]-1,2,4-triazin-7-one derivatives 7a–i were synthesized and evaluated as novel acetylcholinesterase (AChE) inhibitors. All target compounds were evaluated in vitro for the inhibitory activities against AChE via Ellman colorimetric assay. Compound 7c showed an excellent (89.82%) inhibitory activity. The molecular docking studies revealed that 7c, 7d and 7g, with the lateral chain in the para position of the phenyl ring, possessed an optimal docking pose and can perfectly fit into the catalytic active site (CAS) and peripheral anionic site (PAS), simultaneously, and, consequently, exhibited higher inhibitory potency than 7b that bears the same lateral chain as 7g, but in the ortho position of the phenyl ring.

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