(-) -ヒムガリンの総合合成
Unmesh Shah1, Samuel Chackalamannil, Ashit K Ganguly
1Schering-Plough Research Institute, 2015 Galloping Hill Road, Kenilworth, NJ 07033, USA.
Journal of the American Chemical Society
|September 28, 2006
まとめ
研究者らは,初めて (-) - ヒムガリンの全合成と (-) - GB 13 のエナチオセレクティブ合成を達成しました. これらの複雑な分子は,新しいデカルボキシル化アザ・マイケル反応とサイクル化戦略を使用して合成されました.
科学分野:
- 有機化学 オーガニック・ケミストリー
- 合成化学 合成化学とは
- 自然製品合成 自然製品合成
背景:
- (-) - ヒムガリンと (-) - GB 13は複雑な自然産物です.
- これらの化合物への効率的な合成経路は,化学研究と潜在的なアプリケーションに価値があります.
研究 の 目的:
- (-) -ヒムガリンの最初の完全合成を報告する.
- 関連する化合物 (-) - GB 13 の高度なエナチオセレクティブ合成を開発する.
主な方法:
- 酸性条件下でヘクササイクリックラクトンの前駆体に対するデカルボキシル化アザ・マイケル反応を利用した.
- (-) - GB 13の合成のための基本的なワークアップを使用しました.
- (-) -GB 13を酸催化してオキシヒムガリンに循環させ,その後 (-) -ヒムガリン合成のためにナトリウムトライアセトキシボロヒドリドで還元した.
主要な成果:
- デカルボキシル化アザ・マイケルの反応により,80%の収量で (-) - GB13を成功して合成した.
- サイクリングとステレオ選択的還元によって (-) - ヒムガリンの独占的形成を達成しました.
結論:
- (-) - ヒムガリンの最初の完全合成を確立し,新しい合成経路を示した.
- キー反応の有用性を示し, (-) - GB 13への高度なエナチオセレクティブ経路を開発しました.
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