One-Pot, Base- and Metal-Free Practical Synthesis of Novel Cycloalkene-Fused [1,4]Thiazepines through the Sequential Ugi/SNCsp2 Reactions

Autor: Ahmed Al-Harrasi, Ahmad Takallou, Sulaiman Al-Shidhani, Muhammad U. Anwar
Rok vydání: 2022
Předmět:
Zdroj: Synthesis. 55:489-498
ISSN: 1437-210X
0039-7881
DOI: 10.1055/a-1944-2423
Popis: A one-pot and sequential Ugi/SNCsp2 four-component reaction was introduced for the synthesis of cycloalkene-fused [1,4]thiazepine derivatives. A variety of cyclic β-bromovinyl aldehyde with different sizes, amines, and isocyanides were reacted with thioglycolic acid. This approach can provide a practical and rapid access to the fused bioactive cycloalkene structures containing thiazepine, and peptide unit, which proved the achievement of a significant structural diversity. Further use of this method has been successfully applied in synthesizing a variety of quinoline-fused [1,4]thiazepines with satisfactory results. The practical nature of this approach was demonstrated by a gram-scale synthesis of a selected product.
Databáze: OpenAIRE