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4H-Pyrimido[2,1-b ]benzothiazole-2-thiomethyl-3-cyano-4-one (3) has been prepared by the reaction of 2-amino benzothiazole (1) with ethyl-2-cyano-3,3-bismethyl thio acrylate (2) in the presence of dimethyl formamide and anhydrous potassium carbonate. Susceptibility of compound (3), towards condensation with different reagents like aryl amines, heteryl amines, phenols and compounds containing active methylene groups has been investigated.
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Baheti et al. (2002) studied this question.
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