Application of carbodiimide mediated Lossen rearrangement for the synthesis of α-ureidopeptides and peptidyl ureas employing N-urethane α-amino/peptidyl hydroxamic acids
作者:N. Narendra、Gundala Chennakrishnareddy、Vommina V. Sureshbabu
DOI:10.1039/b905790k
日期:——
Application of the Lossenrearrangement to the synthesis of N-urethane protected α-peptidyl ureas and ureidopeptides is reported. The carbodiimide mediated rearrangement of N-Boc/Z/Fmoc protected α-amino/peptide hydroxamic acids into isocyanates and coupling of the latter with the amino acid esters/peptide esters have been accomplished in a single-pot to obtain good yields of urea products. Synthesis
报道了Lossen重排在N-氨基甲酸酯保护的α-肽基脲和脲肽的合成中的应用。这碳二亚胺N- Boc / Z / Fmoc保护的α-氨基/肽异羟肟酸介导的重排成异氰酸酯,后者与氨基酸酯/肽酯的偶联已在单罐中完成,从而获得了较高的收率。尿素产品。还已经使用相同的方法经由N-保护的天冬氨酸的异羟肟酸酯衍生物合成脲基丙氨酸衍生物。
A Facile Synthesis of Hydroxamic Acids of<i>N<sup>α</sup></i>-Protected Amino Acids Employing BDMS, a Study of Their Molecular Docking and Their Antibacterial Activities
作者:K. Uma、H. S. Lalithamba、V. Chandramohan、K. Lingaraju
DOI:10.1080/00304948.2019.1579039
日期:2019.3.4
Hydroxamic acids have received much attention as biologically active compounds. Synthetic hydroxamic acids enhance the growth of plant sources and improve the soil quality, act as antibiotics, cell...