A second generation of 1,2,4-oxadiazole derivatives with enhanced solubility for inhibition of 3-hydroxykynurenine transaminase (HKT) from <i>Aedes aegypti</i>
作者:Larissa G. Maciel、Andrey da S. Barbosa、Edilson B. de Alencar-Filho、Thereza A. Soares、Janaína V. dos Anjos
DOI:10.1039/d0md00305k
日期:——
(HKT). Previously, we have reported the effectiveness of 1,2,4-oxadiazole derivatives acting as larvicides for A. aegypti and AeHKT inhibitors from in vitro and in silico studies. Here, we report the synthesis of new sodium 4-[3-(aryl)-1,2,4-oxadiazol-5-yl] propanoates and the cognate HKT-inhibitory activity. These new derivatives act as competitive inhibitors with IC50 values in the range of 42 to 339
Palladium-catalyzed synthesis of 5-amino-1,2,4-oxadiazoles <i>via</i> isocyanide insertion
作者:Xu Wang、Jin-Ping Fu、Jia-Xing Xie、Qing-Hu Teng、Hai-Tao Tang、Ying-Ming Pan
DOI:10.1039/d0ob01092h
日期:——
palladium-catalyzed approach has been developed for the synthesis of 5-amino-1,2,4-oxadiazoles from amidoximes and isocyanides. Various 5-amino-1,2,4-oxadiazoles were obtained in moderate to high yields under mild conditions. The key to the success of this strategy involves new C–N bond and C–O bond formation via palladium-catalyzed isocyanide insertion.
A series of novel triazole antifungal agents containing piperidine-oxadiazole side chains were designed and synthesized. Compound11bwas highly active againstCandida albicanswith a MIC value of 0.016 μg mL−1.
Synthesis of 2,4-Disubstituted Imidazoles via Nucleophilic Catalysis
作者:Jason E. Camp、Dmitrii A. Shabalin、Jay J. Dunsford、Simbarashe Ngwerume、Alexandra R. Saunders、Duncan M. Gill
DOI:10.1055/s-0039-1690832
日期:2020.5
microwave-assisted protocol for the synthesis of disubstituted NH-imidazoles via nucleophiliccatalysis is described. The substituted imidazoles are accessed via the intramolecular addition of a variety of amidoxime substrates to activated alkynes followed by a thermally induced rearrangement of the in situ generated O-vinylamidoxime species. The unprotected imidazoles contain an aryl group at the 2-position
[EN] TRIAZOLE OXADIAZOLES DERIVATIVES<br/>[FR] DÉRIVÉS DE TRIAZOLES ET D'OXADIAZOLES
申请人:MERCK SERONO SA
公开号:WO2009080663A1
公开(公告)日:2009-07-02
The invention relates to compounds of formula (I), wherein R1, R2, Ra, Rb, X have the meanings given in claim 1. The compounds are useful e.g. in the treatment of autoimmune disorders, such as multiple sclerosis.