アトロプセレクティブ・パラサイクロファン・フォーメーションによるフィジオリドAの合成
Christoph Heinz1, Nicolai Cramer1
1Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne CH-1015, Switzerland.
Journal of the American Chemical Society
|August 25, 2015
まとめ
研究者達は フィジオライドAを合成しました 抗がん剤と抗炎症剤の 海洋産物です このエナチオセレクティブ合成は,複雑なパラサイクロファンの構造を構築するための新しい方法を示しています.
科学分野:
- 海洋自然産物の化学
- 有機合成
- 薬剤化学
背景:
- 海洋由来二次代謝物質であるフィジオリドAは,TNFα誘発のNFκB活性化を阻害する.
- NFκBは,がんや炎症性疾患に関与する重要な転写因子である.
- フィジオリドAは,構造的にエネディーネC-1027に類似した,グリコシル化パラサイクロファンである.
研究 の 目的:
- フィジオリドAのエナチオセレクティブ合成を達成する.
- 複雑なアレン合成のためのルテニウム触媒 [2+2+2]-サイクロトリメリゼーションの有用性を実証する.
- 緊張した [2.6]パラサイクロファンのコア構造にアクセスします.
主な方法:
- 完全に分子間ルテニウム触媒 [2+2+2]-サイクロトリマライゼーションを用いたエナント選択的合成.
- 3つの異なるアルキンを用いて代替された中央アレンコアの組み立て.
- パラサイクロファンのフレームワークの構築のためのテンプレートアトロプセレクティブマクロエテリフィケーション.
主要な成果:
- フィジオライドAのエナチオセレクティブ合成に成功
- サイクロトリメリゼーションによる重複した中央アレンコアの効率的な構築.
- 特徴的なストレート [2.6]パラサイクロファンの構造へのアクセス
結論:
- 開発された合成戦略は,複雑なパラサイクロファンの構造を組み立てるのに強力です.
- この研究はフィジオライドAおよび関連化合物への有効な経路を提供します.
- この合成は,天然製品合成におけるルテニウム触媒の可能性を強調しています.
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