除了作为分子共轭化学中的共价接头外,由铜 (I) 催化的叠氮化物 - 炔环加成反应产生的 1,2,3-三唑基部分作为金属离子配体的功能受到了相当多的关注。在这项工作中,我们表征了在荧光锌 (II) 指示剂开发的背景下,在多齿配体支架中加入 1,2,3-三唑基对金属配位的热力学和动力学影响。配体L14、BrL14和FL14(1,4-异构体)包含 1,4-二取代的 1,2,3-三唑基,该基团能够与多齿内的二(2-甲基吡啶氨基)(DPA) 部分结合的锌 (II) 结合配体支架。因此,1,4-异构体中的1,2,3-三唑基在螯合中是“整合”的。1,5-异构体L15、BrL15和FL15含有 1,2,3-三唑基,它们被排除在锌 (II) 配位之外。这些 1,2,3-三唑基是“被动接头”。使用1 H NMR 光谱和等温滴定量热法 (ITC)鉴定溶液中化学计量比为 2:1(配体/金属)的锌 (II) 配合
除了作为分子共轭化学中的共价接头外,由铜 (I) 催化的叠氮化物 - 炔环加成反应产生的 1,2,3-三唑基部分作为金属离子配体的功能受到了相当多的关注。在这项工作中,我们表征了在荧光锌 (II) 指示剂开发的背景下,在多齿配体支架中加入 1,2,3-三唑基对金属配位的热力学和动力学影响。配体L14、BrL14和FL14(1,4-异构体)包含 1,4-二取代的 1,2,3-三唑基,该基团能够与多齿内的二(2-甲基吡啶氨基)(DPA) 部分结合的锌 (II) 结合配体支架。因此,1,4-异构体中的1,2,3-三唑基在螯合中是“整合”的。1,5-异构体L15、BrL15和FL15含有 1,2,3-三唑基,它们被排除在锌 (II) 配位之外。这些 1,2,3-三唑基是“被动接头”。使用1 H NMR 光谱和等温滴定量热法 (ITC)鉴定溶液中化学计量比为 2:1(配体/金属)的锌 (II) 配合
[EN] ISATOIC ANHYDRIDE DERIVATIVES AND APPLICATIONS THEREOF<br/>[FR] DÉRIVÉS D'ANHYDRIDE ISATOÏQUE ET LEURS APPLICATIONS
申请人:UNIV NORTH CAROLINA
公开号:WO2015163952A1
公开(公告)日:2015-10-29
Isatoic anhydride derivatives having an N-substituent which includes a quaternary ammonium group are useful for labeling and/or functionalizing a target material and/or for coupling materials together. The isatoic anhydride derivatives of the present disclosure can be advantageously water soluble, easily prepared and purified. Isatoic anhydride derivatives useful in the present disclosure preferably have at least one chemically reactive group or at least one binding group or at least one detectable label. Anthranilate derivatives made from the isatoic anhydrides derivatives or otherwise and kits including the isatoic anhydride derivatives are also disclosed.
A Fluorogenic 1,3-Dipolar Cycloaddition Reaction of 3-Azidocoumarins and Acetylenes
作者:Krishnamoorthy Sivakumar、Fang Xie、Brandon M. Cash、Su Long、Hannah N. Barnhill、Qian Wang
DOI:10.1021/ol047955x
日期:2004.11.1
Copper(I)-catalyzed 1,3-dipolarcycloadditionreaction of nonfluorescent 3-azidocoumarins and terminal alkynes afforded intense fluorescent 1,2,3-triazole products. The mild condition of this reaction allowed us to construct a large library of pure fluorescent coumarin dyes. Since both azide and alkyne are quite inert to biological systems, this reaction has potential in bioconjugation and bioimaging
The synthesis of fluorescent lipophosphoramidates is reported. Their modularconstruction allows several variations of the molecular structure including the separation of the fluorescent probe from the lipophosphoramidate moiety by a short methylene or by a tetraethylene glycol spacer. The last step of the convergent synthesis is a Huisgen click reaction, which assembles the fluorescent probe with
Fluorescent amphiphilic phospholipids (neutral or cationic) in which fluorescent probes are contained in the lipid domain were synthesized via phosphoramide intermediates possessing two distinct lipid chains. One of these lipid chains is ω-functionalized with an azide or alkyne group, and this is subsequently used to introduce a fluorescent probe by Huisgen cycloaddition. Five different fluorescent
Chemoselective Fluorgenic Molecular Linkers and Methods for Their Preparation and Use
申请人:Wang Qian
公开号:US20070224695A1
公开(公告)日:2007-09-27
The present invention describes a bioconjugation strategy and compounds that are useful therein in which a fluorescent signal is produced when two molecular or supramolecular entities are linked by chemoselective combination of one linker having an azido or halide substituent group with another linker having a cyano or an alkyne substituent group. A kit is also provided.