The alkylation of α,ω-dibromoalkanes, with the sodium salt of succinimide, followed by the reduction with sodium borohydride gives the respective N-ω-bromoalkyl-5-hydroxy-2-pyrrolidinones. These substrates are precursors of N-acyliminium ions under acidic conditions. The condensation of these intermediates with ethylmalonate in the presence of TiCl4 and diisopropylethylamine following the intramolecular
<i>N</i>-Alkylation of imides using phase transfer catalysts under solvent-free conditions
作者:Jolanta Jaśkowska、Piotr Kowalski
DOI:10.1002/jhet.5570450519
日期:2008.9
N-Alkylation of imides in the reaction of imides and alkylhalides, catalyzed by PT catalystsundersolvent-freeconditions, has been developed. The reaction occurs in the presence of K2CO3, and in many cases it takes place spontaneously. In the N-benzylation reaction, it has been recognized that TBAB (tetrabutylammonium bromide) and TBATFB (tetrabutylammonium tetrafluoroborate) show highest catalytic
已经开发了在无溶剂条件下由PT催化剂催化的酰亚胺和烷基卤化物的反应中酰亚胺的N-烷基化。该反应在K 2 CO 3的存在下发生,并且在许多情况下是自然发生的。在N-苄基化反应中,已经认识到TBAB(溴化四丁基铵)和TBAFB(四氟硼酸四丁基铵)显示出最高的催化作用。通过各种酰亚胺的N-苄基化和N-乙基化,已证实了无溶剂烷基化的多功能性和合成能力。所开发的方法使得容易获得N-(ω-溴烷基)酰亚胺。
I. Discovery of a novel series of CXCR3 antagonists. Multiparametric optimization of N , N -disubstituted benzylamines
N,N-Disubstituted benzylamine derivatives have been identified as CXCR3 antagonists. Compounds were optimized to improve affinity and selectivity, to increase metabolic stability in human and mouse liver microsomes, to increase Caco-2 permeability. Optimization was supported by monitoring physico-chemical properties using both experimental and computational means. Several compounds with double-digit
[EN] AMIDOALKYLPIPERAZINYL DERIVATIVES FOR THE TREATMENT OF CENTRAL NERVOUS SYSTEM DISEASES<br/>[FR] DÉRIVÉS D'AMIDOALKYLPIPÉRAZINYLE POUR LE TRAITEMENT DE MALADIES DU SYSTÈME NERVEUX CENTRAL
申请人:ADAMED SP ZOO
公开号:WO2013001498A1
公开(公告)日:2013-01-03
The invention relates to novel amidoalkylpiperazinyl derivatives of tricyclic heterocyclic systems of general formula (I), wherein Z represents -NH- and X represents -S-, or Z represents -S- and X represents >C=C<; R1 represents H or -CH3, R6 and R7 both represent H, n is an integer from 0 to 4 inclusive, G represents a cyclic amide or imide moiety, and optical isomers, geometric isomers, and pharmaceutically acceptable salts thereof. The compounds may be useful for the treatment and/or prevention of the central nervous system disorders.
Development of a Modified Julia Olefination of Imides for the Synthesis of Alkaloids
作者:Huu Vinh Trinh、Lionel Perrin、Peter G. Goekjian、David Gueyrard
DOI:10.1002/ejoc.201600349
日期:2016.6
We report the development of the intramolecular Juliaolefination of imides. This original reaction produces N-fused bicyclic enamide compounds, which are interesting precursors in the synthesis of alkaloids. We show that this transformation enables access to [5,6], [6,5], and [6,6] fused bicyclic lactam enamides. The scope and the limitations of the reaction are presented as well as computational
我们报告了酰亚胺的分子内 Julia 烯化的发展。这种原始反应产生 N-稠合双环烯酰胺化合物,它们是生物碱合成中有趣的前体。我们表明,这种转化能够获得 [5,6]、[6,5] 和 [6,6] 稠合双环内酰胺烯酰胺。介绍了反应的范围和局限性,以及有关标题反应新机理方面的计算研究。