Abstract
The chemical structure of an unknown metabolite of ciprofloxacin (CAS 85721-33-1) is characterized by means of reversed phase ion pair liquid chromatography, absorption and fluorescence spectroscopy, partition coefficients as well as chemical and enzymatic hydrolytic degradation. A chemical structure of the unknown metabolite is proposed: N-formyl-desethylen-ciprofloxacin. It can be formed as an intermediate in the oxidative degradation of ciprofloxacin via oxociprofloxacin to desethylen-ciprofloxacin, or it may be formed by conjugation of desethylen-ciprofloxacin with formic acid. The amounts found in plasma and urine of patients were in the range of desethylen-ciprofloxacin, i.e. about 1% of the parent compound.
| Originalsprache | Englisch |
|---|---|
| Zeitschrift | Arzneimittel-Forschung |
| Jahrgang | 42 |
| Ausgabenummer | 4 |
| Seiten (von - bis) | 570-5 |
| Seitenumfang | 6 |
| ISSN | 0004-4172 |
| Publikationsstatus | Veröffentlicht - 04.1992 |
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