Palladium-Catalyzed Triazolopyridine Synthesis: Synthesis of 7-Chloro-3-(2-Chlorophenyl)-1,2,4-Triazolo[4,3-a]Pyridine
摘要:
Chloramine-T is thermally unstable and heating of chloramines-T beyond the temperature disclosed in this procedure should not be conducted without further safety evaluation. Hydrazine should be handled in a fume hood as it is an animal carcinogen and has been identified it as a potential human carcinogen. In addition, anhydrous hydrazine is potentially explosive, especially in contact with metals, and should only be handled as its hydrate.
Palladium-Catalyzed Coupling of Aldehyde-Derived Hydrazones: Practical Synthesis of Triazolopyridines and Related Heterocycles
作者:Oliver R. Thiel、Michal M. Achmatowicz、Andreas Reichelt、Robert D. Larsen
DOI:10.1002/anie.201001999
日期:2010.11.2
The palladium‐catalyzed intermolecular coupling of aldehyde‐derived hydrazones with chloroazines, followed by oxidative cyclization under mild conditions afforded access to a broad variety of bicyclic heterocyclic scaffolds (see scheme) that have potential for use in drug discovery.
IMIDAZO- AND TRIAZOLO-PYRIDINE COMPOUNDS AND METHODS OF USE THEROF
申请人:Amgen Inc.,
公开号:EP2086973A2
公开(公告)日:2009-08-12
US7700593B2
申请人:——
公开号:US7700593B2
公开(公告)日:2010-04-20
[EN] IMIDAZO- AND TRIAZOLO-PYRIDINE COMPOUNDS AND METHODS OF USE THEROF<br/>[FR] COMPOSÉS D'IMIDAZO- ET DE TRIAZOLO-PYRIDINE ET LEURS PROCÉDÉS D'UTILISATION
申请人:AMGEN INC
公开号:WO2008045393A2
公开(公告)日:2008-04-17
[EN] The present invention comprises a new class of compounds useful for the prophylaxis and treatment of protein kinase mediated diseases, including inflammation and related conditions. The compounds have general Formula (I), wherein A, B, R1, R2, R3 and R4 are defined herein. The invention also comprises pharmaceutical compositions including one or more compounds of Formula (I), uses of such compounds and compositions for treatment of P38 map kinase mediated diseases including rheumatoid arthritis, psoriasis and other inflammation disorders, as well as intermediates and processes useful for the preparation of compounds of Formula (I). [FR] La présente invention concerne une nouvelle classe de composés utile pour la prophylaxie et le traitement de maladies favorisées par la protéine kinase, y compris l'inflammation et les états pathologiques liés. Les composés sont représentés par la formule générale (I), dans laquelle A, B, R1, R2, R3 et R4 sont tels que définis ici. L'invention concerne également des compositions pharmaceutiques incluant un ou plusieurs composé(s) représenté(s) par la formule (I), l'utilisation de ces composés et compositions pour le traitement de maladies favorisées par la P38 map kinase, y compris la polyarthrite rhumatoïde, le psoriasis et d'autres troubles inflammatoires, ainsi que des intermédiaires et des procédés utiles pour la préparation des composés représentés par la formule (I).