(S) 8-(3-aminopyrrolidin-1-yl)-7-(2-bromobenzyl)-1,3-dimethyl-3,7-dihydropurine-2,6-dione

7-((S)-3-Amino-pyrrolidin-1-yl)-6-fluoro-1-(2-fluoro-1,1-dimethyl-ethyl)-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid ethyl ester

1-(3-amino-2,4-difluorophenyl)-7-[(3S)-3-aminopyrrolidin-1-yl]-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid

ethyl (S)-7-(3-amino-1-pyrrolidinyl)-6-fluoro-1,4-dihydro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylate

(S) 8-(3-aminopyrrolidin-1-yl)-7-(2-bromobenzyl)-1,3-dimethyl-3,7-dihydropurine-2,6-dione hydrochloride