Used as a key intermediate in the synthesis of pharmaceuticals, particularly heterocyclic compounds with antimicrobial, antiviral, and anti-inflammatory activities. The dichloro-substituted thiazolopyrimidine structure enables facile functionalization via nucleophilic aromatic substitution, supporting the development of diverse bioactive derivatives. Also employed in research for novel purine analogs and synthetic nucleosides due to its fused heterocyclic ring system and reactivity. Shows potential in agrochemicals for creating new pesticides, herbicides, and plant growth regulators.