作者:Thomas O. Richardson、Vinayak P. Shanbhag、Kimberly Adair、Shantel Smith
DOI:10.1002/jhet.5570350610
日期:1998.11
4-dihydro-4-oxoquinoline-3-carboxylic acid, were synthesized. The compounds were obtained by use of the Gould-Jacobs route to the quinoline ring system. The required anilines, 3-benzoxazol-2-yl-4-fluorophenylamine and 3-benzothiazol-2-yl-4-fluorophenylamine were obtained by the cyclodehydration reaction of 5-amino-2-fluorobenzoic acid with 2-aminophenol or 2-aminothiophenol respectively using polyphosphoric
氟喹诺酮类,7-苯并恶唑-2-基-1-乙基-6-氟-1,4-二氢-4-氧喹啉-3-羧酸和7-苯并噻唑-2-基-1-乙基-6-氟-合成了1,4-二氢-4-氧代喹啉-3-羧酸。这些化合物是通过使用Gould-Jacobs途径制得的喹啉环系统获得的。通过5-氨基-2-氟苯甲酸与2-氨基苯酚或2-氨基硫代苯酚的环化脱水反应,可得到所需的苯胺,3-苯并恶唑-2-基-4-氟苯胺和3-苯并噻唑-2-基-4-氟苯胺。分别使用多磷酸。