Bioassay for A-56268 (TE-031) and identification of its major metabolite, 14-hydroxy-6-O-methyl erythromycin

Autor: R. A. Rode, N. Ramer, P. B. Fernandes, L. Freiberg
Rok vydání: 1988
Předmět:
Zdroj: European Journal of Clinical Microbiology & Infectious Diseases. 7:73-76
ISSN: 1435-4373
0934-9723
DOI: 10.1007/bf01962181
Popis: A-56268 is a new macrolide which is generally two-fold more potent than erythromycin. A new bioassay is described in which plasma samples are extracted with acetonitrile prior to bioassay. The concentration range for the assay is between 0.05-4.0 micrograms/ml, and the concentrations measured are within 6% of those measured by high-power liquid chromatography. An active metabolite which is as active as erythromycin was identified in the plasma. The plasma half-life and area under the plasma curve values of A-56268, as determined by bioassay, were significantly greater than those of erythromycin.
Databáze: OpenAIRE