Synthesis and trypanocide activity of chloro-l-tyrosine and bromo-l-tyrosine derivatives
作者:Manuel Pastrana Restrepo、Elkin Galeano Jaramillo、Alejandro Martínez Martínez、Sara Robledo Restrepo
DOI:10.1007/s00044-018-2249-y
日期:2018.12
Twenty-two halogenated l-tyrosine derivatives were synthesized to examine new substances for the treatment of Chagas disease. The synthesis of these derivatives with different degree of substitution in the amino group with methyl iodide, giving primary, tertiary, and quaternary amino acids. All compounds were tested in vitro against intracellular amastigotes of Trypanosoma cruzi, and the cytotoxicity
合成了二十二个卤化的1-酪氨酸衍生物,以研究用于治疗南美锥虫病的新物质。这些衍生物在甲基中具有甲基碘的不同取代度,可以合成伯,叔和季氨基酸。所有化合物均在体外针对克氏锥虫的胞内变形虫进行了测试,并通过单核细胞系U-937评估了细胞毒性。化合物25以75.52 µM的EC 50对抗克氏杆菌最具活性,而苯并硝唑的EC 50为58.79 µM的化合物最为有效。化合物3,4,7,和15种是具有最佳选择性指数(SI)的值分别为7.5、8.3、12.1和8.6的衍生物。最后,化合物7是对抗T. cruzi的更安全,更有前途的衍生物。