An Expeditious Route toward Pyrazine-Containing Nucleoside Analogues
作者:Sachin G. Modha、Jalpa C. Trivedi、Vaibhav P. Mehta、Denis S. Ermolat’ev、Erik V. Van der Eycken
DOI:10.1021/jo102089h
日期:2011.2.4
An improved and convenient methodology for the synthesis of asymmetrically substituted pyrazines starting from 3,5-dichloropyrazin-2(1H)-ones has been elaborated. Several nucleoside analogues have been synthesized containing the pyrazine core as the organic base coupled with the sugar via a triazole linkage. The beneficial effect of microwave irradiation throughout the sequence has been demonstrated.
Efficient Preparation of Tetrasubstituted Pyrazines Starting from Pyrazin-2(1H)-ones
作者:Erik Van der Eycken、Sachin Modha、Jalpa Trivedi、Vaibhav Mehta、Denis Ermolat'ev
DOI:10.1055/s-0031-1289714
日期:2012.6
methodology for the synthesis of tetrasubstituted pyrazines starting from pyrazin-2(1H)-ones has been elaborated. Diversity in the functionalization and the beneficial effect of microwave irradiation throughout the methodology has been demonstrated. palladium catalysis - copper catalysis - pyrazines - 3,5-dichloropyrazin-2(1H)-ones - microwaves - nucleosides