同位素标记,特别是氘代,是开发新药的重要工具,特别是用于代谢物的鉴定和定量。为此,已经开发了许多有效的方法,允许小规模合成选择性氘代化合物。由于氘代化合物作为活性药物成分的发展,人们对可扩展的氘代方法越来越感兴趣。工业环境中大规模氘标记方法的开发需要可靠、稳健和可扩展的技术。在这里,我们展示了通过将纤维素与丰富的铁盐结合制备的纳米结构铁催化剂,允许使用廉价的 D2 O 在氢气压力下。这种方法代表了一种易于扩展的氘化(通过在千克规模上合成含氘产品来证明),并且空气和水稳定的催化剂能够以直接的方式进行有效的标记,并具有高质量的控制。
[EN] ISOTOPOLOGUES OF ISOQUINOLINONE AND QUINAZOLINONE COMPOUNDS AND USES THEREOF AS PI3K KINASE INHIBITORS<br/>[FR] ISOTOPOLOGUES DE COMPOSÉS ISOQUINOLINONE ET QUINAZOLINONE ET LEURS UTILISATIONS COMME INHIBITEURS DE LA KINASE PI3K
申请人:INFINITY PHARMACEUTICALS INC
公开号:WO2017161116A1
公开(公告)日:2017-09-21
Provided are isotopologues of isoquinolinone and quinazolinone compounds of formula (ΑΒ') that modulate PI3 kinase activity, processes for the preparation of the compounds, pharmaceutical compositions comprising the compounds, and methods of treatment of diseases and disorders using the compounds or pharmaceutical compositions.
A Simple, Cost-Effective Method for the Regioselective Deuteration of Anilines
作者:Andrew Martins、Mark Lautens
DOI:10.1021/ol801763j
日期:2008.10.2
A highly effective and operationally simple method for the regioselectivedeuteration of anilines is presented. A variety of electron-rich and electron-deficient anilines are efficiently deuterated at the ortho and/or para position with respect to the nitrogen in the presence of 1 equiv of conc HCl in D 2O. Under the present conditions, aromatic methoxy groups do not facilitate deuteration, enabling
Shifted Selectivity in Protonation Enables the Mild Deuteration of Arenes Through Catalytic Amounts of Bronsted Acids in Deuterated Methanol
作者:Oliver Fischer、Anja Hubert、Markus R. Heinrich
DOI:10.1021/acs.joc.0c01604
日期:2020.9.18
effect” of the solvent methanol, deuterations of electron-rich aromatic systems can be carried out under mild acid catalysis and thus under far milder conditions than known so far. The exceptional functional group tolerance observed under the optimized conditions, which even includes highly acid-labile groups, results from a hitherto unexploited shifted selectivity in protonation, and enabled simple
EPR and ENDOR spectroscopic study of the reactions of aromatic azides with gallium trichloride
作者:Giorgio Bencivenni、Riccardo Cesari、Daniele Nanni、Hassane El Mkami、John C. Walton
DOI:10.1039/c0ob00084a
日期:——
The reactions of gallium trichloride with phenyl and deuterio-phenyl azides, as well as with 4-methoxyphenyl azide and deuterium isotopomers, were examined by product analysis, CW EPR spectroscopy and pulsed ENDOR spectroscopy. The products included the corresponding anilines together with 4-aminodiphenylamine type dimers, and polyanilines. Complex CW EPR spectra of the radical cations of the dimers
的反应 三氯化镓 与苯基和氘代叠氮化物,以及 4-甲氧基苯基叠氮化物通过产物分析,连续波EPR光谱和脉冲ENDOR光谱检查了氘和氘的同位素异构体。产品包括相应的苯胺以及4-氨基二苯胺型二聚体和聚苯胺。二聚体[ArNHC 6 H 4 NH 2 ] + ˙和三聚体[ArNHC 6 H 4 NHC 6 H 4 NH 2 ] +的自由基阳离子的复杂CW EPR光谱获得。借助氘取代类似物的数据以及脉冲Davies ENDOR光谱对这些EPR光谱进行了分析。自由基阳离子的DFT计算提供了确凿的证据,并表明未成对的电子被容纳在广泛的π-离域轨道中。提出了一种机制来解释芳族叠氮化物还原转化为相应的苯胺并因此还原为二聚体和三聚体的机理。