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Microbial metabolism studies of the antimalarial drug arteether (1) have shown that arteether is metabolized by a number of microorganisms. Large-scale fermentation with Aspergillus niger (ATCC 10549) and Nocardia corallina (ATCC 19070) have resulted in the isolation of four microbial metabolites which have been characterized using two-dimensional nuclear magnetic resonance (2D-NMR) techniques. These...
CGP-291 is an investigational antiprotozoal agent with unknown metabolism. Microbial systems were utilized, as a model of mammalian metabolism, to predict the oxidative metabolic pathway of this nitroimidazole. Large-scale fermentation of CGP-291 with Beauvaria bassiana produced two major metabolites, IV and V. Structures of both were elucidated by comparing spectral data of metabolites to that of...
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