Abstract
Two phenolic compounds, JBIR-94 (1) and JBIR-125 (2), were isolated from the fermentation broth of strain R56-07, which was identified by phylogenetic methods as a novel species of Streptomyces. The structures of 1 and 2 were assigned on the basis of 1D and 2D NMR spectroscopy and MS analyses. Compounds 1 and 2 exhibited 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity with an IC(50) value of 11.4 and 35.1 μM, respectively. These compounds are the first examples of hydroxycinnamic acid amides containing putrescine or spermidine produced by actinomycetes.
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