Fluoronaphthyridines and -quinolones as antibacterial agents. 5. Synthesis and antimicrobial activity of chiral 1-tert-butyl-6-fluoro-7-substituted-naphthyridones
作者:P. Di Cesare、D. Bouzard、M. Essiz、J. P. Jacquet、B. Ledoussal、J. R. Kiechel、P. Remuzon、R. E. Kessler、J. Fung-Tomc、J. Desiderio
DOI:10.1021/jm00100a028
日期:1992.10
A series of novel 7-substituted-1-tert-butyl-6-fluoronaphthyridone-3-carboxylic acids has been prepared. These derivatives are characterized by chiral aminopyrrolidine substituents at the 7 position. In this paper we report the full details of the asymmetric synthesis of this series of compounds. Structure-activity relationship studies indicate that the absolute stereochemistry at the asymmetric centers of the pyrrolidine ring is critical for maintaining good activity. Compounds 60 and 61 (3-amino-4-methylpyrrolidine enantiomers) were selected for preclinical evaluation.