A tetrahydropentaleno[1,6a-a]naphthalen-4(2H)-one of defined relative stereochemistry for use towards Agariblazeispirol C

Alan R. Kennedy, William J. Kerr, Laura C. Paterson, Andrew Sutherland

Research output: Contribution to journalArticle

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Towards the synthesis of the novel natural product Agariblazeispirol C, (5aR*,11bR*)-9-methoxy-3,8,11b-trimethyl-5,6,7,11b-tetrahydro-1H-pentaleno[1,6a-a]naphthalen-4(2H)-one, C20H24O2, has been prepared at a key stage of the preparative programme. The structure shows the desired stereochemical outcome of the central cyclization protocol, viz. a syn-relationship between the aliphatic methyl group on the 11b-position and the methylene group on the 5a-position [C-C-C-C = -34.57 (18)degrees].

Original languageEnglish
Pages (from-to)473-474
Number of pages2
JournalActa Crystallographica Section C: Crystal Structure Communications
Publication statusPublished - Sep 2010



  • alpha-carbonyl radicals
  • formal total-synthesis
  • beta-cedrene
  • cyclization
  • cedrone

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