作者:Birgit Wilding、Stefan Faschauner、Norbert Klempier
DOI:10.1016/j.tetlet.2015.05.104
日期:2015.7
The synthesis of 5-hydroxymethyl-, 5-acetoxymethyl-, 5-formyl- and 5-cyanothieno[2,3-d]pyrimidines, the (methyl)-5-carboxylate, and the respective amide functionality was accomplished by building up the functionalized molecule starting from appropriately substituted thiophene precursors. A similar strategy starting from the pyrimidine precursor and subsequent direct functionalization (formylation and cyanation) of the thieno[2,3-d]pyrimidine parent compound in position 5 was found to be less feasible. (C) 2015 Elsevier Ltd. All rights reserved.