SEARCH Articles Figures Tables 1.5- Naphthyridine-3-carboxylates 4-hydroxy 1.6- Naphthyridine, 8-hydroxy 1.6- Naphthyridine, 8-hydroxy 4-Hydroxy-l,5-naphthyridine 7- Amino-2-hydroxy-1,8-naphthyridines Rearrangements 4-hydroxy-1,8-naphthyridines Tautomeric 1,5-Naphthyridinones and Extranuclear Hydroxy- 1,5-Naphthyridines