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.
Synthesis and biological activity of nucleoside analogs involving modifications in the carbohydrate ring
作者:Walter A. Szarek、B. Mario Pinto、Masaharu Iwakawa
DOI:10.1139/v85-354
日期:1985.8.1
acyclic moiety bearing α,β-unsaturated esters is also illustrated for the case of uridine. The results of biological screening of these analogs and others previously synthesized in our program against leukemia L-1210 cells in vitro are presented; some of these compounds showed marginal antitumor activity. The screening results of selected compounds against the human HeLa cell line in vitro are al...