A novel synthetic pathway to approach 3-(imino)isoindolin-1-ones by the Co-catalyzed cyclization reaction of 2-bromobenzamides with carbodiimides has been developed. This catalytic reaction can tolerate a variety of substituents and provide corresponding products in moderate yields for most cases. According to the literature, the reaction mechanism is proposed through the formation of a five-membered
Glycosyl Triazole Based Pyridinamide/CuI-Catalyzed Coupling of 2-Halobenzamides with Active Methylene Compounds
作者:Vinod K. Tiwari、Sumit K. Singh、Sunil Kumar、Mangal S. Yadav、Subrato Bhattacharya
DOI:10.1055/a-2157-9001
日期:2024.3
3-triazole-based pyridinamide ligands. The catalytic system effectively works for the coupling of N-substituted 2-halobenzamides with various active methylene compounds to form biologically relevant heterocyclic scaffolds in high to excellent yields. The consecutive path of the reaction including intermolecular C–C cross-coupling followed by intramolecularcyclization efficiently takes place at low catalytic loading
2-hydroxyl-8-methoxy-5-methylphenanthridinium chloride (11k) showed good inhibitory activity with an IC50 value of 0.12 mM. Preliminary structure–activity relationship indicated that DDC inhibitory potential of 5-methyl phenanthridium derivatives correlated with the π-electro densities on CN double bond of iminium cation. The hydroxyl group on compound 11k possibly contributed to the formation of hydrogen bond between