Synthesis of (Fluoroalkyl)amines by Deoxyfluorination of Amino Alcohols
作者:Shoji Hara、Takashi Nomoto、Tsuyoshi Fukuhara
DOI:10.1055/s-2006-947316
日期:2006.7
Deoxyfluorination of amino alcohols was achieved using N,N-diethyl-α,α-difluorobenzylamine (DFBA) to furnish N-benzoyl(fluoroalkyl)amines selectively.
Convenient Entry to <sup>18</sup>
F-Labeled Amines through the Staudinger Reduction
作者:E. Johanna L. Stéen、Vladimir Shalgunov、Christoph Denk、Hannes Mikula、Andreas Kjaer、Jesper L. Kristensen、Matthias M. Herth
DOI:10.1002/ejoc.201801457
日期:2019.2.28
amino‐functionalized synthons is a convenient and versatile approach to synthesize a broad variety of PET tracers. Herein, we report a method to convert 18F‐labeled azides to primary amines by means of the Staudingerreduction. Aliphatic and aromatic 18F‐labeled azides were converted into the corresponding amines with high conversion yields. The method was easily automated. From a broader perspective, the applied
Fluorine-18 在正电子发射断层扫描 (PET) 成像中具有出色的衰变特性。因此,它非常适合临床应用。因此,改进将氟-18纳入生物活性分子的策略至关重要。使用氨基功能化合成子进行间接 18F 标记是合成各种 PET 示踪剂的一种方便且通用的方法。在此,我们报告了一种通过施陶丁格还原将 18F 标记的叠氮化物转化为伯胺的方法。脂肪族和芳香族18F标记的叠氮化物被转化为相应的胺,转化率很高。该方法很容易实现自动化。从更广泛的角度来看,所应用的策略从单个前体产生两个有用的合成子,从而增加了以最少的合成工作标记不同化学支架的灵活性。
[EN] RADIOFLUORINATION<br/>[FR] RADIOFLUORATION
申请人:HAMMERSMITH IMANET LTD
公开号:WO2010060694A1
公开(公告)日:2010-06-03
The present invention relates to 18F radiochemistry and in particular to a method for synthesising radiofluorinated amides and amines. The method of the invention has particular application in the radiosynthesis of a variety of 18F-labelled positron emission tomography (PET) tracers.
p<i>K</i><sub>a</sub>-Dependent Formation of Amides in Water from an Acyl Phosphate Monoester and Amines
作者:Jolanta Wodzinska、Ronald Kluger
DOI:10.1021/jo800667b
日期:2008.6.1
Acyl phosphate monoesters are readily prepared biomimetically activated anionic derivatives of carboxylic acids that react rapidly with amines in water to form amides. A plot of the logarithms of the rate constants for the reactions of a series of primary amines with benzoyl methylphosphate depends on the pKa of the conjugate acids of the amines (βnuc ≈ 0.9). This provides a simple and quantitative
酰基磷酸单酯是易于制备的,仿生活化的羧酸阴离子衍生物,可与水中的胺迅速反应形成酰胺。一系列伯胺与苯甲酰基甲基磷酸酯反应的速率常数的对数关系图取决于胺的共轭酸的p K a(βnuc≈0.9)。这为这些试剂的区域选择性酰化提供了简单和定量的基础。
[EN] APPLICATION OF STAUDINGER LIGATION IN PET IMAGING<br/>[FR] APPLICATION D'UNE LIGATURE DE STAUDINGER EN IMAGERIE TEP
申请人:SIEMENS MEDICAL SOLUTIONS
公开号:WO2011123444A1
公开(公告)日:2011-10-06
A method for generating a radiolabeled tracer. The method includes providing a phosphine molecule having at least one carbocyclic, aromatic, or pyrrolidinyl ring with an OH substitute. The OH of this phosphines molecule is then condensed with an acid to produce a phosphine ester. Staudinger ligation is then performed to generate the radiolabeled tracer by treating the phosphine ester with a radiolabeled azide having a PET radioisotope moiety