Kornsakulkarn J, Thongpanchang C, Lapanun S, Srichomthong K. Isocoumarin glucosides from the scale insect fungus Torrubiella tenuis BCC 12732.
JOURNAL OF NATURAL PRODUCTS 2009;
72:1341-1343. [PMID:
19456117 DOI:
10.1021/np900082h]
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Abstract
Three new isocoumarin glucosides (1, 3, and 4), 6,8-dihydroxy-3-methylisocoumarin (2), and 6,8-dihydroxy-3-hydroxymethylisocoumarin (5) were isolated from the scale insect pathogenic fungus Torrubiella tenuis BCC 12732. Structures of these compounds were elucidated using NMR spectroscopic and MS spectrometric analyses. Compound 5 exhibited moderate anti-HSV-1 and antimycobacterial activities with IC(50) and MIC values of 50 and 25 microg/mL, respectively.
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