Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antitumor and antimicrobial agents. Its structure supports the formation of heterocyclic compounds with biological activity. Commonly employed in medicinal chemistry for constructing fused thiophene derivatives that exhibit kinase inhibition. Also utilized in agrochemical research for designing new bioactive molecules. The ester and amino groups allow for easy functionalization, making it valuable in combinatorial chemistry and drug discovery.