5Chang Yong Hong, Young Kwan Kim, Se Ho Kim, et al. 7 - (4 - aminomethyl-3-methyloxyi minopyrrolidin- 1-yl )- 1-cyclopropyl-6-fluoro-4-oxo-1, 4-dihydro-1, 8-naphthyridine-3-carboxylie acid and the process for the preparation thereof [P]. US :5869670,1999 - 02 - 09.
6Chang Yong Hong. Discovery of gemifloxacin (Factive, LB20304a):a quinolone of a new generation[J]. IL Farmaco, 2001,56: 41~44.
7Chang Yong Hong, Young Kwan Kim, Yong Hee Lee, et al. Methyloxime-substituted aminopyrrolidine: A new surrogate for 7-basic group of quinolone[J]. Bioorganlc & Medlcinal Chemlstry Letters, 1998, (8) :221~226.
8Choi, Sang-Chui. Process for preparing acid salts of gemifloxacin[P]. WO: 03087100,2003 - 10 -02.
10Chang Yong Hong,Young Kwan Kim,Se Ho Kim,et al.7-(4-Aminomethyl-3-methyloxyi minopyrrolidin-1-yl)-1-cy-clopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthridine-3-carboxylic acid and the process for the preparation there-of:US,5869670[P].1999-02-09.