Synthesis of 3′-azido-3′-deoxythymidine (AZT)—Cinchona alkaloid conjugates via click chemistry: Toward novel fluorescent markers and cytostatic agents
作者:Dagmara Baraniak、Karol Kacprzak、Lech Celewicz
DOI:10.1016/j.bmcl.2010.11.127
日期:2011.1
Novel nucleoside–Cinchona alkaloid conjugates were synthesized using ‘click’ chemistry approach based on the copper(I) catalyzed Huisgen azide–alkyne cycloaddition. Two series of conjugates were prepared employing 3′-azido-3′-deoxythymidine (AZT) as the azide component and the four 10,11-didehydro Cinchonaalkaloids as well as their 9-O-propargyl ethers as the alkyne components. All obtained conjugates
New Polymer-Supported Mono- and Bis-<i>Cinchona</i>Alkaloid Derivatives: Synthesis and Use in Asymmetric Organocatalyzed Reactions
作者:Ravindra P. Jumde、Anila Di Pietro、Antonella Manariti、Alessandro Mandoli
DOI:10.1002/asia.201402924
日期:2015.2
Chinchona alkaloids and their application in the asymmetric dimerization of ketenes is reported. Six different immobilized derivatives, consisting of three dimeric and two monomeric 9‐O ethers, were prepared by “click” anchoring of soluble alkaloid precursors on to azidomethyl resins. The resulting insoluble polymer‐bound (IPB) organocatalysts were employed for promoting the dimerization of in‐situ