An intramolecular cyclization of 7-substituted 6-fluoro- 1,8-naphthyridine and -quinoline derivatives
作者:Yoshiro Nishimura、Akira Minamida、Jun-Ichi Matsumoto
DOI:10.1002/jhet.5570250224
日期:1988.3
A synthesis of 1,4-oxazine and pyrazine ring systems by an intramolecular cyclization of 7-substituted 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine and -quinoline derivatives having a nitrogen or oxygen nucleophilic site in the C-7 appendage was studied. The in vitro antibacterial activities of compounds prepared by this method were tested.
通过分子内环合7-取代的1-乙基-6-氟-1,4-二氢-4-氧代-1,8-萘啶和具有氮原子的喹啉衍生物合成1,4-恶嗪和吡嗪环系统研究了C-7附肢中的氧亲核位点。在体外用该方法制备的化合物的抗菌活性进行了测试。