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Colossolactones, new triterpenoid metabolites from a Vietnamese mushroom Ganoderma colossum.
Seven new triterpenoid metabolites (colossolactones; 1-7) were isolated from a fruiting body of Ganoderma colossum, and their structures were determined by MS and NMR methods.
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New diketopiperazine alkaloids from Penicillium fellutanum.
Four new diketopiperazine alkaloids (1-4) were isolated from cultures of Penicillium fellutanum, and their structures were determined by MS and NMR measurements.
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New macrolides and furan carboxylic acid derivative from the sponge-derived fungus Cladosporium herbarum.
Bioassay-guided fractionation of organic extracts of Cladosporium herbarum, isolated from the marine sponge Callyspongia aerizusa, yielded two new macrolide metabolites: pandangolide 3 and 4 (1 andExpand
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Alnumycin a new naphthoquinone antibiotic produced by an endophytic Streptomyces sp.
The culture broth (5 liters) was separated by filtration followed by concentration under reduced pressure (1 l iter) and extraction with ethyl acetate (3×1 liter). After drying over Na2SO4 theExpand
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Aurantimycins, new depsipeptide antibiotics from Streptomyces aurantiacus IMET 43917. Production, isolation, structure elucidation, and biological activity.
Aurantimycins A (1), B (2) and C (3) were isolated from the mycelium of Streptomyces aurantiacus JA 4570 as new representatives of the azinothricin group of hexadepsipeptide antibiotics. TheirExpand
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Biochemie der Antibiotika
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New macrodiolide antibiotics, 11-O-monomethyl- and 11, 11'-O-dimethylelaiophylins, from Streptomyces sp. HKI-0113 and HKI-0114.
Elaiophylin (1) and two new methyl derivatives, 11-O-monomethylelaiophylin (2) and 11,11'-O-dimethylelaiophylin (3), were isolated from the mycelium cake of Streptomyces strains HKI-0113 andExpand
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Cervimycin A-D: a polyketide glycoside complex from a cave bacterium can defeat vancomycin resistance.
Cervimycins A-D are novel polyketide glycosides with significant activity against multi-drug-resistant staphylococci and vancomycin-resistant enterococci. They are produced by a strain ofExpand
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A new inducer of anthracycline biosynthesis from Streptomyces viridochromogenes.
Sir: It has been suggested that derivatives of butyrolactone play an important role in the cellular development of microorganisms1-3). This assumption has received support from the recent isolationExpand
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