B(C
<sub>6</sub>
F
<sub>5</sub>
)
<sub>3</sub>
‐Catalyzed
<i>α</i>
‐Deuteration of Bioactive Carbonyl Compounds with D
<sub>2</sub>
O
作者:Yejin Chang、Tanner Myers、Masayuki Wasa
DOI:10.1002/adsc.201901419
日期:2020.1.23
An efficient deuteration process of α‐C−H bonds in various carbonyl‐based pharmaceutical compounds has been developed. Catalytic reactions are initiated by the action of Lewis acidic B(C6F5)3 and D2O, converting a drug molecule into the corresponding boron‐enolate. Ensuing deuteration of the enolate by in situ‐generated D2O+−H then results in the formation of α‐deuterated bioactive carbonyl compounds
在各种基于羰基的药物化合物中,已经开发了一种高效的α -C-H键氘代过程。催化反应是通过路易斯酸性B(C 6 F 5)3和D 2 O的作用引发的,将药物分子转化为相应的硼-烯酸酯。随后通过原位生成的D 2 O + -H对烯醇化进行氘化,然后导致α氘化的生物活性羰基化合物的形成,氘的掺入率高达98%以上。
Organocatalytic Deuteration Induced by the Dynamic Covalent Interaction of Imidazolium Cations with Ketones
作者:Konstantin I. Galkin、Evgeniy G. Gordeev、Valentine P. Ananikov
DOI:10.1002/adsc.202001507
日期:2021.3.2
organocatalytic approach based on the dynamic covalent interaction of imidazolium cations with ketones. A reaction of N‐alkyl imidazolium salts with acetone‐d6 in the presence of oxygenated bases generates a dynamic organocatalytic system with a mixture of protonated carbene/ketone adducts acting as H/D exchange catalysts. The developed methodology of the pH‐dependent deuteration showed high selectivity of labeling
[EN] SUBSTITUTED XANTHINE DERIVATIVES<br/>[FR] DÉRIVÉS DE XANTHINE SUBSTITUÉS
申请人:CONCERT PHARMACEUTICALS INC
公开号:WO2011028835A1
公开(公告)日:2011-03-10
This invention relates to novel compounds that are substituted xanthine derivatives and pharmaceutically acceptable salts thereof. For example, this invention relates to novel substituted xanthine derivatives that are derivatives of pentoxifylline. This invention also provides compositions comprising one or more compounds of this invention and a carrier and the use of the disclosed compounds and compositions in methods of treating diseases and conditions for which pentoxifylline and related compounds are beneficial.
One-Pot Sequential Hydrogen Isotope Exchange/Reductive Deuteration for the Preparation of α,β-Deuterated Alcohols using Deuterium Oxide
作者:Hengzhao Li、Zemin Lai、Mengqi Peng、Lei Ning、Qixin Dong、Yuxia Hou、Jie An
DOI:10.1021/acs.orglett.2c01940
日期:2022.7.29
An efficient one-pot sequential hydrogen isotope exchange (HIE)/reductive deuteration approach was developed for the preparation of α,β-deuterated alcohols using ketones as the precursors. The HIE step can also be used for the synthesis of α-deuterated ketones. This method has been applied in the synthesis of four deuterated drug and MS internal standards.