Novel fluorinated quaternary ammonium salts and their in vitro activity as trypanocidal agents
作者:Marisol López-Muñoz、Jessica Johanna Gomez-Peña、Luz Amalia Ríos-Vásquez、Rogelio Ocampo-Cardona、Marjorie A. Jones、Craig S. Haynes、Craig Wallace、Sara M. Robledo
DOI:10.1007/s00044-018-02285-2
日期:2019.3
impact of aromatic rings and fluorine substituents in commercial drugs is attributed to their electronic distribution and structure rigidity that determine metabolic stability and toxicity, 30 quaternary ammonium salts (QAS) of the form [X-CH2N(CH3)2(CH2)nCH = C(Ar2)]+I− (where X=H, Cl or I, n = 2 or 3, and Ar = m-C6H4CF3, p-C6H4CF3, m-C6H4F, p-C6H4F or C6H5) were tested as potential trypanocidal agents
由于芳环和氟取代基在商业药物中的影响归因于它们的电子分布和结构刚度,它们决定了代谢的稳定性和毒性,因此有30种[X-CH 2 N(CH 3)2( CH 2)n CH = C(Ar 2)] + I −(其中X = H,Cl或I,n = 2或3,Ar = m -C 6 H 4 CF 3,p -C 6 H 4 CF 3,米-C 6 ħ测试了4 F,p -C 6 H 4 F或C 6 H 5)作为潜在的锥虫病药物,并评估了它们对U-937细胞的细胞毒性。CF 3取代的QAS的LC 50值在0.5至6.4μg/ mL的范围内,锥虫EC 50值在0.6至7.0μg/ mL的范围内,而F取代的类似物的LC 50值在7.0至207μg/ mL的范围内EC 50值范围为3.8至40.9μg/ mL。一般趋势是,带有N-碘甲基部分或具有更长链结的那些更有效,而对位取代的。很少有药物疗法可用于恰加斯病,因此这项研究成为有希望的贡献。