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1999Parshikov I A; Freeman J P; Lay J O; Beger R D; Williams A J; Sutherland J B
Regioselective transformation of ciprofloxacin to N-acetylciprofloxacin by the fungus Mucor ramannianus.
FEMS microbiology letters 1999;177(1):131-5.
A strain of the saprobic fungus Mucor ramannianus, isolated from a forest, was used to demonstrate the potential for ciprofloxacin biotransformation by zygomycetes in the environment. The fungus carried out the regioselective N-acetylation of ciprofloxacin to a single product, which was purified from culture extracts by high-performance liquid chromatography. The metabolite was identified by mass and nuclear magnetic resonance spectrometry as 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(4-acetyl-1-piperazinyl)-3- quinolinecarboxylic acid.

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