Concise route to the key intermediate for divergent synthesis of C7-substituted fluoroquinolone derivatives
作者:Xin Zhang、Feng Mu、Bobby Robinson、Pengfei Wang
DOI:10.1016/j.tetlet.2009.11.077
日期:2010.1
A concise route to ethyl 7-bromo-1-cyclopropyl-6,8-difluoro-4-quinolone-3-carboxylate has been developed. This compound is a keyintermediate for divergent synthesis of various C7-substituted fluoroquinolones, a group of potent topoisomerase II inhibitors with promising clinical applications.