Use of the Graebe-Ullmann reaction in the synthesis of 8-methyl-γ-carboline and isomeric aromatic aza-γ-carbolines
摘要:
Two variants of the Graebe-Ullmann reaction were used to obtain 8-methyl-5H-pyrido[4,3-b]indole (8-methyl-gamma-carboline) and the conditions for this reaction were optimized. The feasibility of using this method was studied for the synthesis of a series of isomeric aromatic aza-gamma-carbolines from the corresponding 1-(pyridyl)-1H-1,2,3-triazolo[4,5-c]pyridines under thermal and microwave irradiation conditions.
Use of the Graebe-Ullmann reaction in the synthesis of 8-methyl-γ-carboline and isomeric aromatic aza-γ-carbolines
摘要:
Two variants of the Graebe-Ullmann reaction were used to obtain 8-methyl-5H-pyrido[4,3-b]indole (8-methyl-gamma-carboline) and the conditions for this reaction were optimized. The feasibility of using this method was studied for the synthesis of a series of isomeric aromatic aza-gamma-carbolines from the corresponding 1-(pyridyl)-1H-1,2,3-triazolo[4,5-c]pyridines under thermal and microwave irradiation conditions.
INHIBITION OF P38 KINASE ACTIVITY USING SUBSTITUTED HETEROCYCLIC UREAS
申请人:Dumas Jacques
公开号:US20120046290A1
公开(公告)日:2012-02-23
This invention relates to the use of a group of aryl ureas in treating cytokine mediated diseases, other than cancer and proteolytic enzyme mediated diseases, other than cancer, and pharmaceutical compositions for use in such therapy.
INHIBITION OF RAF KINASE USING SUBSTITUTED HETEROCYCLIC UREAS
申请人:Dumas Jacques
公开号:US20070244120A1
公开(公告)日:2007-10-18
Methods of treating tumors mediated by raf kinase, with substituted urea compounds, and such compounds per se.
治疗由raf激酶介导的肿瘤的方法,包括使用取代脲化合物,以及这些化合物本身。
Selective Functionalization of Aminoheterocycles by a Pyrylium Salt
作者:Daniel Moser、Yaya Duan、Feng Wang、Yuanhong Ma、Matthew J. O'Neill、Josep Cornella
DOI:10.1002/anie.201806271
日期:2018.8.20
The functionalization of aminoheterocycles by using a pyrylium tetrafluoroborate reagent (Pyry‐BF4) is presented. This reagent efficiently condenses with a great variety of heterocyclic amines and primes the C−N bond for nucleophilic aromatic substitution. More than 60 examples for the formation of C−O, C−N, C−S, or C−SO2R bonds are disclosed herein. In contrast to C−N activation through diazotization
An I2-mediated N–Ncoupling reaction has been established for oxidative dimerization of N-aryl aminopyridines to a variety of novel hydrazine derivatives under mild conditions. This synthetic method does not require use of transition metals and can be conveniently carried out on a gram scale. It is also applicable to diphenylamine and N-alkyl aniline substrates.