PHOTOCHEMICAL TRANSFORMATION OF FLOUROQUINOLONE ANTIBIOTIC DRUG- BESIFLOXACIN
Journal Title: International Journal of Pharmacognosy - Year 2015, Vol 2, Issue 9
Abstract
In the present study, the photochemistry of fluoroquinolone antibiotic drug-besifloxacin (1) was investigated under mild conditions similar to those encountered in biological systems namely aerobic as well as an anaerobic condition with UV-A light. When besifloxacin (1) was irradiated with a high-pressure mercury lamp under aerobic conditions it afforded 7-(2-Amino-5-oxo-pentylamino)-8-chloro-1-cyclopropyl-6-fluoro-4-oxo- 1, 4 - dihydro-quinoline-3-carboxylic acid as photoproduct (2) and under anaerobic condition it afforded 7-(3-Amino-azepan-1-yl)-1-cyclo propyl-6-fluoro-8-hydroxy-4-oxo-1,4dihydro-quinoline-3-carboxylic acid as photoproduct (3). The formation of photoproduct was explained by the type-I and type II mechanism of photosensitization.
Authors and Affiliations
Waseem Ahmad et al.
Keywords
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