Fitton, A O <br/><br/>
Pharmacologically active 4-oxo-4H-chromen-2-carboxylic acids. II. The synthesis of 4-oxo-4H-chromen-2-carboxylic acids containing a fused imidazole or oxazole ring.  [electronic resource] 

 -  Journal of the Chemical Society. Perkin transactions 1  1970 
 - 2518-22 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0300-922X 
<br/><br/><label>Standard No.: </label>10.1039/j39700002518  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chromones--chemical synthesis