4.5 Article

Two New Avermectin Derivatives from the Beibu Gulf Gorgonian Anthogorgia caerulea

Journal

CHEMISTRY & BIODIVERSITY
Volume 11, Issue 5, Pages 812-818

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cbdv.201300265

Keywords

Anthogorgia caerulea; Avermectins B-1c and B-1e; Antifouling activity

Funding

  1. National Natural Science Foundation of China [31100260, 81260480]
  2. Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-J-28]
  3. Program of Guangzhou City [12C14061559]
  4. Natural Science Foundation of Guangxi [2010GXNSFE013001, 2011GXNSFE018002, 2011GXNSFB018035, 2011GXNSFA018108, 2012GXNSFAA053160, 2012GXNSFEA053001, 2012GXNSFBA053068]

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Two new avermectin derivatives, avermectins B-1c and B-1e (1 and 2, resp.), as well as two known compounds, avermectin B-2a (3) and ivermectin A(1a) (4), were isolated from a Beibu Gulf gorgonian coral, Anthogorgia caerulea. The structures of the new compounds were established by detailed spectroscopic analysis and by comparison with spectral data of related known compounds. Compounds 1-4 showed moderate antifouling activities against the larval settlement of Balanus amphitrite.

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