作者:Xian-Hua Pan、Shu-Pei Bai、Kuan-Wei Li、Xiao-Hu Tao、Yi Zhang、Yu-Chen Zhang、Rui-Min Zhang、Feng Liu
DOI:10.14233/ajchem.2014.18405
日期:——
Three fluoroquinolone derivatives were respectively synthesized by hydrolysis reactions of (S)-9-fluoro-10-cyano-3-methyl-2,3-dihydro-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6- carboxylic acid ethyl ester (compound 2), using different hydrolysis conditions: LiOH, KOH and NaOH. Compound 2 was synthesized by a nucleophilic substitution reaction from (S)-9,10- difluoro-3-methyl-2,3-dihydro-7-oxo-7H-pyridine[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ethyl ester (compound 1), using solid sodium cyanide as the source of cyano group. The structures of these three fluoroquinolone compounds have been identified in appropriate methods.
通过(S)-9-氟-10-氰基-3-甲基-2,3-二氢-7-氧代-7H-吡啶并[1,2,3-de]-1的水解反应分别合成了三种氟喹诺酮衍生物,4-苯并恶嗪-6-甲酸乙酯(化合物2),使用不同的水解条件:LiOH、KOH和NaOH。化合物2由(S)-9,10-二氟-3-甲基-2,3-二氢-7-氧代-7H-吡啶[1,2,3-de]-1,4通过亲核取代反应合成-苯并恶嗪-6-甲酸乙酯(化合物1),使用固体氰化钠作为氰基源。已通过适当的方法鉴定了这三种氟喹诺酮化合物的结构。