Design, Synthesis, and Inhibitory Activity of Potent, Photoswitchable Mast Cell Activation Inhibitors
摘要:
Allergic reactions affect millions of people worldwide. The need for new and effective antiallergic agents is evident, and insight into the underlying mechanisms that lead to allergic events is necessary. Herein, we report the design, synthesis, and activity of photoswitchable mast cell activation inhibitors. In mast cell degranulation assays, these inhibitors possess significantly greater potency than an original, chromone-based antiallergic agent. Furthermore, one of the photoswitchable inhibitors shows a significant difference in inhibitory activity between its two photoisomeric forms. Further optimization could ultimately lead to a photoswitchable compound suitable for studying mechanisms involved in allergic reactions in a novel manner, with activity addressable by light and with precise spatiotemporal control over events at the molecular level.
Light-triggered self-assembly of a dichromonyl compound in water
作者:Willem A. Velema、Marc C. A. Stuart、Wiktor Szymanski、Ben L. Feringa
DOI:10.1039/c3cc41018h
日期:——
External control over self-assembling structures is achieved by incorporating an azobenzene photoswitch into the structure of a dichromonyl compound. The self-assembly of dichromonyl compounds into fibers leads to the formation of a hydrogel and can be triggered with visible light.
[EN] NOVEL BIS-CHROMONE DERIVATIVES, METHODS FOR THEIR PREPARATION AND USES THEREOF<br/>[FR] NOUVEAUX DÉRIVÉS DE BIS-CHROMONE, LEURS PROCÉDÉS DE PRÉPARATION ET UTILISATIONS
申请人:UNIV GRONINGEN
公开号:WO2014098597A1
公开(公告)日:2014-06-26
The invention relates to novel bis-chromone derivatives, methods for their preparation and their therapeutic application, especially in the treatment or prevention of disease involving mast cell activation, such as allergic disease. Provided is a compound according to the general Formula (I).
Concise and Stereodivergent Approach to Chromanone Lactones through Copper‐Catalyzed Asymmetric Vinylogous Addition of Siloxyfurans to 2‐Ester‐Substituted Chromones
A copper(I)-catalyzed asymmetricvinylogousaddition of siloxyfurans to 2-ester-substituted chromones is described. This method generated enantioenriched chromanonelactones with divergent diastereoselectivities depending on the ligand used and enabled a concise and enantioselective synthesis of (−)-blennolide B with excellent stereoselectivity.
描述了铜 (I) 催化的硅氧基呋喃不对称乙烯基加成到 2-酯取代色酮中。该方法根据所使用的配体产生了具有不同非对映选择性的对映富集色满酮内酯,并能够以优异的立体选择性实现 (-)-blennolide B 的简明和对映选择性合成。
10.1021/jacs.4c02674
作者:Ji, Kaijie、Parthiban, Jayachandran、Jockusch, Steffen、Sivaguru, Jayaraman、Porco, John A.
DOI:10.1021/jacs.4c02674
日期:——
framework was serendipitously obtained in a single transformation via triple-dearomative photocycloaddition of chromone esters with furans. This caged structure was generated as part of an effort to access a tricyclic, oxygen-bridged intermediate enroute to the dihydroxanthone natural product nidulalin A. Reaction scope and limitations were thoroughly investigated, revealing the ability to access a multitude
通过色酮酯与呋喃的三重脱芳光环加成,在一次转化中偶然获得了前所未有的笼状2H-苯并二氧代五环十一烷骨架。这种笼状结构的产生是为了在二氢氧杂蒽酮天然产物 nidulalin A 的途中获得三环氧桥中间体。对反应范围和限制进行了彻底研究,揭示了在合成过程中获得多种具有合成挑战性的笼状支架的能力。两步序列。光物理研究为新型笼式支架的形成过程提供了关键的机制见解。
Tapia, I.; Alcazar, V.; Moran, J. R., Canadian Journal of Chemistry, 1990, vol. 68, # 12, p. 2190 - 2191