4.5 Article

Decandrinin, an unprecedented C9-spiro-fused 7,8-seco-ent-abietane from the Godavari mangrove Ceriops decandra

Journal

BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
Volume 10, Issue -, Pages 276-281

Publisher

BEILSTEIN-INSTITUT
DOI: 10.3762/bjoc.10.23

Keywords

abietane; absolute configuration; Ceriops decandra; circular dichroism; decandrinin; Rhizophoraceae

Funding

  1. NSFC [31100258, 31170331, 81125022]
  2. Guangdong Key Science and Technology Special Project [2011A080403020]
  3. Special Financial Fund of Innovative Development of Marine Economic Demonstration Project [GD2012-D01-001]
  4. BEBUC Excellence Scholarship System
  5. Else-Kroner-Fresenius-Stiftung

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Decandrinin (1), an unprecedented C-9-spiro-fused 7,8-seco-ent-abietane, was obtained from the bark of an Indian mangrove, Ceriops decandra, collected in the estuary of Godavari, Andhra Pradesh. The constitution and the relative configuration of 1 were determined by HRMS (ESI) and extensive NMR investigations, and the absolute configuration by circular dichroism (CD) and optical-rotatory dispersion (ORD) spectroscopy in combination with quantum-chemical calculations. Decandrinin is the first 7,8-seco-ent-abietane.

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