Abstract
An efficient synthesis of 1,8‐naphthyridine‐4(1H)‐one sulfonamide derivatives by thermolysis of 2‐pyridylaminomethylene (Meldrum's acid derivative) starting from 4,6‐dimethyl‐2‐aminopyridine (1) is described.
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Acknowledgment
The authors are indebted to Capes (Brazil) and Brazilian Research Council (CNPq) for financial support of this work.