Abstract
Abstract The convergent synthesis of the HIJKLMN-ring fragment of Caribbean ciguatoxin C-CTX-1, the major causative toxin for ciguatera fish poisoning in the Caribbean Sea and the Northeast Atlantic areas, is disclosed. The synthesis features a late-stage iron-catalyzed hydrogen atom transfer-initiated reductive olefin coupling to install the N-ring and a Suzuki–Miyaura coupling/thioacetalization strategy for the convergent assembly of the hexacyclic HIJKLM-ring skeleton.
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