1,6- and 1,7-naphthyridines. IV. Synthesis of hydroxycarboxamide derivatives
✍ Scribed by M. Mercedes Blanco; Celia B. Schapira; Gustavo Levin; Isabel A. Perillo
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 2005
- Tongue
- English
- Weight
- 156 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0022-152X
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## Abstract A number of 8‐hydroxy‐6‐methyl‐1,6‐naphthyridin‐5(6__H__)‐one‐7‐carboxylic acid alkyl esters 3 and the isomeric 5‐hydroxy‐7‐methyl‐1,7‐naphthyridin‐8(7__H__)‐one‐6‐carboxylic acid alkyl esters 4 were synthesized from acyclic precursors obtained starting from quinolinic anhydride 5. Thus
## Abstract The ^13^C‐NMR spectra of some 1,6‐naphthyridines **2** and 1,7‐naphthyridines **3**, as well as those of __N__‐methyl derivatives **4** and **5**, were recorded and analyzed. Results in dimethyl‐__d__~6~ sulfoxide and deuteriochlo‐roform provide useful data on intra and intermolecular h
## Abstract For Abstract see ChemInform Abstract in Full Text.