Towards catch-up therapy: evaluation of nucleophilic active pharmaceutical ingredients for the treatment of percutaneous VX poisoning, in-vial and in-vitro studies
based on approved drugs, were initially screened. They were then tested in various binary solutions, for their detoxification efficacy and degradation ability towards lipophilic OP CWA models such as dibutylphosphofluoridate and o-nitro-phenyl diphenyl phosphate, as well as the nerveagentVX, by means of kinetic 31P NMR and UV–Vis spectroscopy. Of these, the potassium and diethyl ammonium salts of acetohydroxamic
皮肤暴露于低挥发性有机磷化学战剂(OP CWA)对暴露者造成巨大风险。由于它们的亲脂性质,这些化合物迅速吸收到皮肤中,导致形成“皮肤贮库”,它们从中缓慢进入血液,导致长期中毒。传统上,应对此类物质毒性的策略包括化学去污/从皮肤表面物理清除残留剂(最好在暴露后尽快清除)和在出现中毒迹象时施用解毒剂。因此,这些策略不能抵消大量的试剂,这些试剂积聚在皮肤贮库中。十多年前,有人提出了一种旨在中和真皮储层的“追赶疗法”的概念。在此,我们描述了潜在的“追赶疗法”乳液示例-旨在将小的亲核分子传递到皮肤中并可能在残留的CWA到达血流之前分解的媒介物。最初筛选了基于已批准药物的11种亲核化合物。然后在各种二元溶液中测试它们的解毒功效和对亲脂性OP CWA模型的降解能力,例如磷酸二丁酯和通过动力学31 P NMR和UV-Vis光谱分析,可以看到邻硝基苯基磷酸二苯酯以及神经毒剂VX 。其中,发现(DMSO / H
TFAA/DMSO‐Promoted Fluorination of P(O)−H and P(O)−OH Compounds: Compatible Access to Fluorophosphonates and Phosphonofluoridates
作者:Qi‐Wei Li、Xin‐Yue Zhang、Lu Lu、Zi‐Qian Wu、Ji Li、Gui‐Zhi Li、Kai Sun、Shang‐Dong Yang、Bin Yang
DOI:10.1002/adsc.202101254
日期:2022.3
A TFAA/DMSO/NaF-based system for the efficient fluorination of P(O)−H and P(O)−OH compounds has been developed. Without adding highly toxic and expensive fluorination reagents, this novel transformation provides direct and compatible access to a variety of fluorophosphonates and phosphonofluoridates in a one-pot manner.
A New Microscale Method for the Conversion of Phosphorus Oxyacids to Their Fluorinated Analogues, Using Cyanuric Fluoride in Solution and on Solid Support
作者:Rikard Wärme、Lars Juhlin
DOI:10.1080/10426501003671445
日期:2010.11.23
Cyanuric fluoride, in solution or loaded onto a Wang resin, is successfully used as a fluorinating agent for phosphorus oxy acids. The reaction is very efficient with high yields and easy workup procedures, thereby in general generating products in quantitative yields. The cyanuric fluoride is proven suitable for micromolar scale synthesis of analytical standards, particularly in its resin-bound form
溶液中或负载在 Wang 树脂上的氰尿酰氟已成功用作含氧磷酸的氟化剂。该反应非常有效,产率高,后处理程序简单,因此通常以定量产率产生产物。氰尿酰氟已被证明适用于分析标准品的微摩尔级合成,特别是其树脂结合形式。
α-Haloenamines as Reagents for the Conversion of Phosphorus Oxyacids to Their Halogenated Analogues
作者:Rikard Norlin、Lars Juhlin、Per Lind、Lars Trogen
DOI:10.1055/s-2005-865363
日期:——
Phosphorusoxyacids are converted to their halogenated analogues under mild conditions. α-Haloenamines are shown to be effective halogen transfer reagents affording good to high yields of the desir ...