Convenient Synthesis and Antimicrobial Activity of Some Novel Amino Acid Coupled Triazoles
作者:S. M. El Rayes
DOI:10.3390/molecules15106759
日期:——
This study describes a promising one-pot synthesis of [2-(5-benzyl-4-phenyl-4H-[1,2,4]triazol-3-thio)-acetyl]-amino acid methyl esters 6a-h and dipeptides 10a-e, which were successfully synthesized starting from amino acid esters 5a-h, 9a-e and azides 4, 8a,b, respectively. On the other hand, azide 4 underwent Curtius rearrangement to the corresponding isocyanate, which subsequently reacted with selected aliphatic amine and/or aniline derivatives to give the corresponding urea derivatives 11 and 12a,b. Reactions of the isocyanate with secondary amines gave amide derivatives 13a,b. The structural elucidation of products is reported and some of the products were also screened for their antimicrobial activity.
本研究介绍了一种很有前景的[2-(5-苄基-4-苯基-4H-[1,2,4]三唑-3-硫代)-乙酰基]-氨基酸甲酯 6a-h 和二肽 10a-e 的单锅合成方法,它们分别从氨基酸酯 5a-h、9a-e 和叠氮化物 4、8a,b 开始成功合成。另一方面,叠氮化物 4 经过 Curtius 重排生成相应的异氰酸酯,随后与选定的脂肪胺和/或苯胺衍生物反应,得到相应的脲衍生物 11 和 12a,b。异氰酸酯与仲胺反应生成酰胺衍生物 13a、b。报告阐明了产品的结构,并对其中一些产品进行了抗菌活性筛选。