Synthesis of the C1-C12 Fragment of Calyculin C

Research output: Contribution to journalArticleScientificpeer-review


Research units

  • Latvian Institute of Organic Synthesis


Calyculins are a class of highly cytotoxic metabolites originally isolated from the marine sponge Discodermia calyx. To date, a total of twelve different calyculins (A-J) and calyculinamides (A, B and F) have been described, the most abundant (in D. calyx) being calyculins A and C. Herein, we demonstrate a concise route to access the C1-C12 tetraene fragment of calyculin C using transition-metal-catalyzed coupling reactions (Suzuki-Miyaura, Stille, Negishi and Heck) for the key connections. The synthesis starts from propionaldehyde and proceeds in 10 steps with 7.5% overall yield. We also describe an efficient route for the preparation of (Z)-3-iodobut-2-enenitrile in four steps and 68% yield.


Original languageEnglish
Pages (from-to)285-295
Number of pages11
JournalSynthesis (Germany)
Issue number1
Publication statusPublished - 1 Jan 2019
MoE publication typeA1 Journal article-refereed

    Research areas

  • calyculins, natural products, Negishi and Heck coupling, Stille, Suzuki-Miyaura, syntheses of di- and polyenes, transition-metal-catalyzed cross-coupling

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