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Experimental synthetic study demonstrates a reaction route yielding thiazolo pyrimido benzothiazole derivatives, indicating efficient preparation of fused heterocyclic scaffolds.
The 6-Cyano-5-oxo-7-(methylthio)-5H-thiazolo[3,2- a]pyrimidine on reaction with substituted 2-amino benzothiazoles in presence of weak base anhydrous K2CO3 and N,N-dimethyl formamide as solvent afford 6-imino-5-oxo thiazolo[2,3-b]pyrimido[5,6-e]pyrimido[2,3-b] benzothiazoles. The newly synthesized compounds were confirmed on the basis of Mass Spectroscopy, Infrared Spectroscopy and 1HNMR Spectroscopy.
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Digambar B. Kadam* (2026) studied this question.
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