Alkynyl and β-ketophosphonates: Selective and potent butyrylcholinesterase inhibitors

被引:16
作者
Cavallaro, Valeria [1 ]
Moglie, Yanina F. [1 ]
Murray, Ana P. [1 ]
Radivoy, Gabriel E. [1 ]
机构
[1] Univ Nacl Sur, CONICET, INQUISUR, Inst Quim Sur,Dept Quim, Ave Alem 1253, RA-8000 Bahia Blanca, Buenos Aires, Argentina
关键词
Organophosphorus compounds; Phosphonates; Enzymatic inhibition; Butyrylcholinesterase; PHOSPHINE OXIDES; BIOLOGICAL EVALUATION; H-PHOSPHONATES; ACETYLCHOLINESTERASE; ALKYNYLPHOSPHONATES; PHOSPHATES; SITE; CHOLINESTERASES; DERIVATIVES; ANALOGS;
D O I
10.1016/j.bioorg.2018.01.030
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A series of thirty-three alkynyl and beta-ketophosphonates were evaluated for their in vitro acetyl- and butyryl-cholinesterase (AChE and BChE) inhibitory activities using Ellman's spectrophotometric method. None of the examined compounds inhibited AChE activity at tested concentrations while twenty-nine of them showed significant and selective inhibition of BChE with IC50 values between 38.60 mu M and 0.04 mu M. In addition, structure-activity relationships were discussed. The most effective inhibitors were the dibutyl o-methoxyphenyl alkynylphosphonate 3dc and dibutyl o-methoxyphenyl beta-ketophosphonate 4dc. Activities of most potent compounds were also compared with a commercial organophosphorus compound. These results could inspire the design of new inhibitors with stronger activity against BChE. (C) 2018 Elsevier Inc. All rights reserved.
引用
收藏
页码:420 / 428
页数:9
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