Highest development stage: Phase 4

Development dropped

Gram-positive activity

Gram-negative activity

Propensity to select resistant bacteria

Reason dropped: Withdrawn from the market in 2001due to high incidence of phototoxicity

Additional information: D.T.W, Chu et al."A-56619 and A56620: Synthesis and antibacterial activity of the novel aryl-fluoroquinolones and their analogs [Abstract 72]" Programs and abstracts of the 24St Interscience Conference on Antimicrobial Agents and Chemotherapy. Washington.DC. American Society for Microbiology. 1984.