Versatile synthesis of 2′-amino-2′-deoxyuridine derivatives with a 2′-amino group carrying linkers possessing a reactive terminal functionality
作者:Andrzej Gondela、Mateusz D. Tomczyk、Łukasz Przypis、Krzysztof Z. Walczak
DOI:10.1016/j.tet.2016.07.061
日期:2016.9
2,2′-Anhydrouridine has been successfully converted into the appropriate 2′-amino-2′-deoxyuridine derivatives in a reaction with isothiocyanates obtained from amino acids or α,ω-diaminoalkanes. The initially formed oxazolidine-2-thione ring is cleaved under basic conditions into the corresponding 2′-amino(substituted)-2′-deoxyuridine derivatives. The implemented additional terminal functionality in
collision-induced dissociative chemical cross-linking reagent are exemplified for substance P, luteinizing hormone releasing hormone LHRH and lysozyme. The novel cross-linker is expected to have a broad range of applications for probing protein tertiary structures and for investigating protein-proteininteractions.
化学交联结合随后的酶消化和质谱分析所产生的交联产物,为评估低分辨率蛋白质结构并深入了解蛋白质界面提供了另一种方法。在这项贡献中,我们报告了基于埃德曼降解化学的创新型交联剂的设计,该交联剂在电喷雾电离(ESI)串联质谱法中导致了指示性的质量偏移碎片离子和恒定的中性损失(CNL)的形成( MS / MS)产物离子质谱图,可以明确鉴定交联的肽。此外,特征性的中性损失反应可通过适用于高通量研究的多个反应监控器,以良好的灵敏度和选择性促进自动分析。新型交联剂的功能依赖于硫脲部分中高度亲核硫的存在,从而保证了有效的分子内攻击,导致可预测的和优选的糖基-脯氨酰胺键断裂。我们创新的分析概念和碰撞诱导的解离性化学交联剂的通用性适用于P物质,促黄体生成激素释放激素LHRH和溶菌酶。预期该新型交联剂在探测蛋白质三级结构和研究蛋白质-蛋白质相互作用方面具有广泛的应用。我们创新的分析概念和碰撞诱导的解离性化学交联剂
NOVEL DERIVATIVES OF BENZIMIDAZOLE AND IMIDAZO-PYRIDINE AND THEIR USE AS MEDICAMENTS
申请人:POITOUT Lydie
公开号:US20090270372A1
公开(公告)日:2009-10-29
A subject of the present Application is novel derivatives of benzimidazole and imidazopyridine which have a good affinity for certain sub-types of melanocortin receptors, in particular the MC4 receptors. They are particularly useful for treating pathological conditions and diseases in which one or more melanocortin receptors are involved. The invention also relates to pharmaceutical compositions containing said products.