The synthesis of 2,5-bis(4-amidinophenyl)thiophene derivatives providing submicromolar-range inhibition of the botulinum neurotoxin serotype A metalloprotease.

The synthesis of 2,5-bis(4-amidinophenyl)thiophene derivatives providing submicromolar-range inhibition of the botulinum neurotoxin serotype A metalloprotease.
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DOI:
10.1016/j.ejmech.2012.03.043
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发表时间:
2012-07
影响因子:
6.7
通讯作者:
Bavari S
Bavari S
中科院分区:
医学1区
文献类型:
--
作者:
Opsenica I;Filipovic V;Nuss JE;Gomba LM;Opsenica D;Burnett JC;Gussio R;Solaja BA;Bavari S

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肉毒神经毒素(BoNT)由七种血清型(分类为A-G)的家族组成,是已知的最致命的生物毒素。金属蛋白酶的活性,毒素的轻链(LC)组分是导致与肉毒中毒相关的危及生命的瘫痪的原因。在此,我们报告了新的、先导BoNT血清型A LC抑制剂2,5-双(4-脒基苯基)噻吩(Ki = 10.88 μM ± 0.90 μM)的显著更有效的类似物。具体而言,合成修饰涉及同时用仲胺取代先导抑制剂的末端双脒和4-氨基-7-氯喹啉取代基的系统性束缚,以提供Ki值范围为0.302 μM(± 0.03 μM)- 0.889 μM(± 0.11 μM)的衍生物。
Botulinum neurotoxins (BoNTs), composed of a family of seven serotypes (categorized A – G), are the deadliest of known biological toxins. The activity of the metalloprotease, light chain (LC) component of the toxins is responsible for causing the life-threatening paralysis associated with the disease botulism. Herein we report significantly more potent analogs of novel, lead BoNT serotype A LC inhibitor 2,5-bis(4-amidinophenyl)thiophene (Ki = 10.88 μM ± 0.90 μM). Specifically, synthetic modifications involved simultaneously replacing the lead inhibitor’s terminal bis-amidines with secondary amines and the systematic tethering of 4-amino-7-chloroquinoline substituents to provide derivatives with Ki values ranging from 0.302 μM (± 0.03 μM) – 0.889 μM (± 0.11 μM).
DOI: 10.1295/polymj.29.626
发表时间: 1997-01-01
期刊: POLYMER JOURNAL
影响因子: 2.8
作者:
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