Silica-supported sodium carbonate: an efficient heterogeneous catalyst for the synthesis of new thiazolopyrimidine derivatives
作者:Priya D. Gavhane、Shuddhodan N. Kadam、Ajay N. Ambhore、Bhaskar S. Dawane
DOI:10.1007/s11164-021-04508-5
日期:2021.10
Herein we describe a new convenient strategy for the synthesis of substituted thiazolopyrimidines. The present approach delivers the use of silica-supported sodium carbonate (SSC) as a recyclable heterogeneous catalyst in PEG- 400 solvent. The described synthetic route offers an easy access for the synthesis of titled compounds through green chemistry protocols. Graphic abstract
Compounds of formula (I)
as well as pharmaceutically acceptable salts and esters thereof, wherein R1 to R3 have the significance given in claim 1 and which can be used in the form of pharmaceutical compositions.