An exhaustive compilation on chemistry of triazolopyrimidine: A journey through decades

Add time:08/25/2019    Source:sciencedirect.com

The triazolopyrimidine scaffold represents one of the privileged structure in chemistry, and there has been an increase in number of studies utilizing this scaffold and its derivatives. Optimization of synthetic protocols such as aza-Wittig reaction, [3 + 2] cycloaddition reaction along with previous methods including condensation with 1,3-dicarbonyl substrates and oxidation of aminopyrimidine Schiff bases have been performed to obtain desired triazolopyrimidines. The triazolopyrimidine ring has been extensively used as a template in medicinal chemistry for its diverse pharmacological properties. Several medicinally active molecules possessing triazolopyrimidine scaffold, either fused or coupled with other heterocycles, have been reported in the literature, highlighting the significance of this nucleus. Interestingly, the unique triazolopyrimidine scaffold also exhibits an impressive potential as a ligand for the synthesis of several metal complexes with significant biological potential. Literature provides enough evidence of exhaustive exploration of this scaffold as a ligand for the chelates of platinum, ruthenium and other metals. This review aims to be a comprehensive and general summary of the different triazolopyrimidine syntheses, their use as ligands for the synthesis and development of metal complexes as medicinal agents and their main biological activities.

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