Synthesis and evaluation of naphthoic acid derivatives as fluorescent probes to screen advanced glycation end-products breakers
摘要:
Advanced glycation end-products, namely AGEs, are involved in the pathogenesis of numerous diseases. If AGEs inhibitors are well-known, only few products are described as compounds able to destroy those deleterious products. In this work, we describe naphthoic acid derivatives, particularly 1-(naphthalen-1-yl)propane-1,2-dione 9, allowing the simple and rapid detection of AGEs breakers using a 96-well microplate fluorescence assay. Since the inaugurate publication about AGEs breakers whose activity was demonstrated using HPLC analysis, this work proposes the first assay suitable for automated and high throughput screening of AGEs breakers. (C) 2012 Elsevier Ltd. All rights reserved.
Palladium-Catalyzed Synthesis of 1,2-Diketones from Aryl Halides and Organoaluminum Reagents Using <i>tert</i>-Butyl Isocyanide as the CO Source
作者:Bo Chen、Xiao-Feng Wu
DOI:10.1021/acs.orglett.9b04414
日期:2020.1.17
In this work, an interesting and practical procedure for the synthesis of 1,2-diketonesfrom aryl halides and organoaluminum reagents has been developed. Employing tert-butyl isocyanide as the CO source and palladium as the catalyst, the desired 1,2-diketones were isolated in good to excellent yields with good functional group tolerance. Concerning the reaction partners, besides aryl halides, both
Phenyl substituted α- (PhC(O)C(O)R) and β-diketones (PhC(O)CHRC(O)R′) are reduced by carbonmonoxide and water in the presence of elemental selenium to give the corresponding aromatic ketones in moderate to good yields.
Organobase-catalyzed Mannich reaction of cyclic N-sulfonyl imines and 1,2-diketones: A sustainable approach to 4-(3-arylquinoxalin-2-ylmethyl)sufamidates
作者:Poonam Rani、Meher Prakash、Sampak Samanta
DOI:10.1016/j.tetlet.2023.154490
日期:2023.6
A convenient, eco-friendly, organobase-catalyzed one-pot two-step sequential approach to a fascinating class of various 4-(3-arylquinoxalin-2-ylmethyl)-substituted sulfamidates in good to high yields is reported. This CC/CN bond-forming reaction proceeds via a Mannich reaction of cyclic N-sulfonyl aldimines with 1-aryl-2-alkyl-1,2-diketones catalyzed by triethylamine, followed by the aza-cyclization
报道了一种方便、环保、有机碱催化的一锅两步顺序方法,以良好到高产率生产一类迷人的各种 4-(3-arylquinoxalin-2-ylmethyl)-取代的磺酰胺。这种 C C/C N 键形成反应通过环状N -磺酰醛亚胺与 1-aryl-2-alkyl-1,2-二酮在三乙胺催化下的曼尼希反应进行,然后原位形成 1 的氮杂环化,2-二羰基前体与PEG-400 中的邻二氨基芳烃在室温下作为天然、可重复使用的良性溶剂。此外,这种 100% 碳原子经济的方法对于克级合成是可行的,并且在温和条件下可以容忍各种合成足智多谋的功能。