作者:Jian Hong、Zonghua Zhang、Huoxing Lei、Haiying Cheng、Yufang Hu、Wanliang Yang、Yinglin Liang、Debasis Das、Shu-Hui Chen、Ge Li
DOI:10.1016/j.tetlet.2009.03.051
日期:2009.5
Finafloxacin hydrochloride, an important clinical compound was synthesized by a novel synthetic approach. An active intermediate ethyl 7-chloro-8-cyano-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-quinoline-3-carboxylate 19 was prepared by a new route. The chiral (S,S')-N-Boc 10 was derived from protected pyrrolidine and the absolute stereochemistry was established by X-ray analysis. (C) 2009 Elsevier Ltd. All rights reserved.