Synthesis of 2-arylhydrazinylidene-3-oxo-4,4,4-trifluorobutanoic acids as new selective carboxylesterase inhibitors and radical scavengers
作者:Olga G. Khudina、Galina F. Makhaeva、Natalia A. Elkina、Natalia P. Boltneva、Olga G. Serebryakova、Evgeny V. Shchegolkov、Elena V. Rudakova、Sofya V. Lushchekina、Yanina V. Burgart、Sergey O. Bachurin、Rudy J. Richardson、Victor I. Saloutin
DOI:10.1016/j.bmcl.2019.126716
日期:2019.12
described cyclization into cinnolones. Study of the esterase profile of these compounds showed that trifluoromethyl-containing acids, in contrast to non-fluorinated analogs, were effective and selective inhibitors of carboxylesterase (CES), without substantially inhibiting structurally related cholinesterases (acetylcholinesterase and butyrylcholinesterase). Moreover, both 3-oxo-4,4,4-trifluorobutanoic
通过在路易斯酸的作用下使2-芳基肼基亚乙基-3-氧代-4,4,4-三氟丁酸乙酯脱烷基化,合成了一系列2-芳基肼基亚基-3-氧代-4,4,4-三氟丁酸。在相同条件下,还发现2-芳基肼基亚乙基-3-氧代丁酸乙酯经历脱烷基化,而不是先前描述的环化成肉桂酮。这些化合物的酯酶谱研究表明,与非氟化类似物相比,含三氟甲基的酸是有效的和选择性的羧酸酯酶(CES)抑制剂,而基本上不抑制与结构相关的胆碱酯酶(乙酰胆碱酯酶和丁酰胆碱酯酶)。而且,无论是3-oxo-4,4,在ABTS测试中,在芳基肼基亚烷基片段中具有甲基或甲氧基取代基的4-三氟丁酸和3-氧代丁酸显示出高的抗氧化活性。因此,发现2-芳基肼基亚基-3-氧代-4,4,4-三氟丁酸构成一类新型的有效且选择性的CES抑制剂,其也具有高自由基清除活性。