期刊
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
卷 14, 期 5, 页码 722-727出版社
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0103-50532003000500004
关键词
meroterpene; endophytic fungi; penicillium; Melia azedarach; Meliaceae
The fungus Penicillium sp was isolated from the root bark of Melia azedarach after surface sterilisation and cultivated for three weeks on sterilised rice. A new meroterpene, named austinoneol, and the known meroterpenes 7-beta-acetoxy-dehydroaustin, neoaustin and dehydroaustin were isolated from the methanol extract of this rice culture. Their structures were identified after extensive spectroscopic studies, which also helped on the revision of H-1 and C-13 chemical shift assignment for some of the known meroterpenes.
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