5-((1,1'-Biphenyl)-4-ylmethyl)-3-methyl-2-pyrrolidinone, (3R,5S)-

pharmaceutical intermediate

(2R,4S)-5-([1,1'-biphenyl]-4-yl)-4-aMino-2-Methylpentanoic acid

Pharmaceutical intermediate

Ethyl 7-chloro-8-cyano-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate

quinolone antibiotic intermediate

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid ethyl ester

fluoroquinolone antibiotic intermediate

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Pharmaceutical intermediate for moxifloxacin

Desethylene Ciprofloxacin, Hydrochloride

pharmaceutical intermediate for ciprofloxacin