Synthesis of N-alkylimidazolium salts and their utility as solvents in the Beckmann rearrangement
摘要:
Six different room temperature ionic liquids (RTILs) based on N-methyl or N-isopropyl imidazolium cations with counteranions, such as BF4- PF6- and OTf have been synthesized by exchanging the counteranions of the corresponding N-methyl or N-isopropylimidazolium bromides using appropriate salts such as NH4BF4, KPF6, and AgOTf. Catalytic amounts of these ionic liquids (ILs) have been used as the reaction medium for the Beckmann rearrangement of oximes to amides in the presence of PCl5. A moderate to good conversion of oximes to amides in all the six ILs was observed. (c) 2007 Elsevier Ltd. All rights reserved.
[EN] THERAPEUTICALLY ACTIVE COMPOUNDS AND THEIR METHODS OF USE<br/>[FR] COMPOSÉS THÉRAPEUTIQUEMENT ACTIFS ET LEURS MÉTHODES D'UTILISATION
申请人:AGIOS PHARMACEUTICALS INC
公开号:WO2015003640A1
公开(公告)日:2015-01-15
Provided are compounds useful for treating cancer and methods of treating cancer comprising administering to a subject in need thereof a compound described herein.
提供了用于治疗癌症的化合物以及治疗癌症的方法,包括向需要的受试者施用本文描述的化合物。
Synthesis and .beta.-adrenergic blocking activity of new aliphatic and alicyclic oxime ethers
We describe the synthesis and pharmacological properties of two new series of aliphatic and alicyclic beta-adrenergic blockers, most of them containing a cyclopropyl ring. They belong either to 2-hydroxy-3-(tert-butylamino)propyl ether A or 2-hydroxy-3-tert-(butylamino)propyl ketoxime ether B derivatives. The O-[2-hydroxy-3-(tert-butylamino)propyl] dicyclopropyl ketoxime 5 exhibited a beta-adrenergic
A facile and odorless one-pot thionation process for the synthesisof N-substituted thioamides using chemically stable and inexpensivethiourea reagent via the Beckmannrearrangement of ketoximes, hasbeen described.
已经描述了使用化学稳定且廉价的硫脲试剂通过酮肟的贝克曼重排合成 N 取代硫代酰胺的简便且无味的一锅硫化工艺。
Synthesis and Adrenergic Activity of a New Series of <i>N</i>-Aryl Dicyclopropyl Ketone Oxime Ethers: SAR and Stereochemical Aspects
作者:Madeleine Blanc、Abderrafii Tamir、Silvère Aubriot、Marie Claude Michel、Mohamed Bouzoubaa、Gérard Leclerc、Pierre Demenge
DOI:10.1021/jm970338c
日期:1998.5.1
A novel series of 31 N-aryl dicyclopropyl ketone oximeethers were synthesized and tested for their activity at alpha- and beta-adrenergic receptors. All of the compounds showed greater affinity for beta-than for alpha1-receptor sites. Some compounds had pure antagonist effects whereas some were partial agonists. Several compounds had an antagonist effect matching that of propranolol in in vitro (binding
The synthesis of R-(+) and S-(-) isomers of O-[3-tert-butylamino)-2-hydroxypropyl] cyclopropyl methyl ketone oxime (falintolol) is described. The syn and anti isomers of falintolol were obtained in two different ways from cyclopropyl methyl ketoxime or from falintolol. For comparison purposes, the enantiomers of the dicyclopropyl ketone oxime derivatives were also prepared. Structure-activity relationships