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Journals and Conferences
A detailed analysis of the secondary metabolite pattern produced by Streptomyces griseoviridis (strain FH-S 1832) using a chemical screening method resulted in the detection, isolation and structure elucidation of new 14-membered lactones of the cineromycin B-type [dehydrocineromycin B (5), oxycineromycin B (7), and 2,3-dihydrocineromycin B (8)], as well as… (More)
Streptomyces griseoflavus subsp. (Gö 3592) was investigated by chemical screening methods. The mycelium contained gilvocarcin V (1). The culture filtrate contained the calcium salt of 3-hydroxyquinoline-2-carboxylic acid (2) confirmed by spectroscopic methods and by a 5-step partial synthesis of the free acid (3).
Bacimethrin (1), known as a thiamine antagonist produced by Bacillus megatherium, was isolated from Streptomyces albus and has been further characterized by NMR spectra and acetylation. A new easy three step synthesis for 1 is described. The biological activity of 1, and its mode of action were discussed. There are indications that bacimethrin inhibits the… (More)