Journal
JOURNAL OF NATURAL PRODUCTS
Volume 70, Issue 5, Pages 869-871Publisher
AMER CHEMICAL SOC
DOI: 10.1021/np060601p
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A new tetrabromospirocyclohexadienylisoxazole, (+)-12-hydroxyhomoaerothionin (1), together with the known compounds (+)-aerothionin (2) and crinemodin-rhodoptilometrin bianthrone (3), were isolated from the marine crinoid Himerometra magnipinna, which had been collected in the South China Sea, Malaysia. The structure of 1 was elucidated by interpretation of 1D H-1 and C-13 NMR spectra and 2D H-1-H-1 COSY, HMQC, and HMBC spectra. This is the first report of tetrabromospirocyclohexadienylisoxazole compounds from a crinoid of Himerometra. Compounds 1-3 were evaluated for their inhibitory activity with the hyphae formation inhibition assay in Streptomyces 85E.
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