Pharmacologically active 4-oxo-4H-chromen-2-carboxylic acids (2-carboxychromones). I. The synthesis of 4-oxo-4H-chromen-2-carboxylic acids containing a fused thiazole ring.
D002867:Chromones / Q000138:chemical synthesis*; D013844:Thiazoles
D002867:Chromones; D013844:Thiazoles