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Nine new and five known polyketides derived from a deep sea-sourced Aspergillus sp. 16-02-1.

ABSTRACT: Nine new C9 polyketides, named aspiketolactonol (1), aspilactonols A-F (2-7), aspyronol (9) and epiaspinonediol (11), were isolated together with five known polyketides, (S)-2-(2'-hydroxyethyl)-4-methyl-?-butyrolactone (8), dihydroaspyrone (10), aspinotriol A (12), aspinotriol B (13) and chaetoquadrin F (14), from the secondary metabolites of an Aspergillus sp. 16-02-1 that was isolated from a deep-sea sediment sample. Structures of the new compounds, including their absolute configurations, were determined by spectroscopic methods, especially the 2D NMR, circular dichroism (CD), Mo2-induced CD and Mosher's 1H NMR analyses. Compound 8 was isolated from natural sources for the first time, and the possible biosynthetic pathways for 1-14 were also proposed and discussed. Compounds 1-14 inhibited human cancer cell lines, K562, HL-60, HeLa and BGC-823, to varying extents.

SUBMITTER: Chen XW

PROVIDER: S-EPMC4071568 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature

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Nine new and five known polyketides derived from a deep sea-sourced Aspergillus sp. 16-02-1.

Chen Xiu-Wen XW Li Chang-Wei CW Cui Cheng-Bin CB Hua Wei W Zhu Tian-Jiao TJ Gu Qian-Qun QQ

Marine drugs 20140527 6

Nine new C9 polyketides, named aspiketolactonol (1), aspilactonols A-F (2-7), aspyronol (9) and epiaspinonediol (11), were isolated together with five known polyketides, (S)-2-(2'-hydroxyethyl)-4-methyl-γ-butyrolactone (8), dihydroaspyrone (10), aspinotriol A (12), aspinotriol B (13) and chaetoquadrin F (14), from the secondary metabolites of an Aspergillus sp. 16-02-1 that was isolated from a deep-sea sediment sample. Structures of the new compounds, including their absolute configurations, wer ...[more]

PMID: 24871461

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