Transition-Metal-Free N9-Amidoalkylation of Purines with N,N-Dialkylamides
摘要:
A novel method for the selective N9-amidoalkylation of purines using N,N-dialkylamides as alkylation reagents via activation of sp(3) C-H bond adjacent to an amide nitrogen atom has been developed in the presence of KI and tert-butyl hydroperoxide (TBHP). This method was simple to operate and provided series of purine derivatives in moderate to excellent yield.
The present invention provides PI3K protein kinase modulators, methods of preparing them, pharmaceutical compositions containing them and methods of treatment, prevention and/or amelioration of kinase mediated diseases or disorders with them.
The present invention provides PI3K protein kinase modulators, methods of preparing them, pharmaceutical compositions containing them and methods of treatment, prevention and/or amelioration of kinase mediated diseases or disorders with them.
C–H Amination of Purine Derivatives via Radical Oxidative Coupling
作者:Zheng Luo、Ziyang Jiang、Wei Jiang、Dongen Lin
DOI:10.1021/acs.joc.8b00066
日期:2018.4.6
An oxidative coupling reaction between purines and alkyl ethers/benzyl compounds was developed to synthesize a series of N9 alkylated purine derivatives using n-Bu4NI as a catalyst and t-BuOOH as an oxidant. This protocol uses commercially available, inexpensive catalysts and oxidants and has a wide range of substrates with a simple operation.
The present invention provides PI3K protein kinase modulators, methods of preparing them, pharmaceutical compositions containing them and methods of treatment, prevention and/or amelioration of kinase mediated diseases or disorders with them.