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Constructing Cyclic Peptides Using an On-Tether Sulfonium Center
Published on: September 28, 2022
サイクロスポリンの全合成:イソニトリル結合反応を通じてN-メチル化ペプチドへのアクセス
Xiangyang Wu1, Jennifer L Stockdill, Ping Wang
1Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10065, USA.
Journal of the American Chemical Society
|March 5, 2010
まとめ
イソニトリルは,効率的なアミド結合形成を可能にし,循環型ポリペプチドであるサイクロスポリンAの合成に不可欠である. この新しい経路は,複雑なアミド合成のために,マイクロ波支援と環境温度のカップリングを使用しています.
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
- 薬用化学 薬用化学について
背景:
- アミド結合形成は,ペプチド合成の中心にある.
- シクロスポリンAのようなサイクルペプチドは,重要な合成課題を提示しています.
- イソニトリル化学は,アミド合成のための新しい経路を提供します.
研究 の 目的:
- サイクロスポリンAの新型全合成を開発する.
- 複雑な分子合成におけるイソニトリル結合の有用性を実証する.
- 二次および三次アミド結合形成の効率的な方法を探求する.
主な方法:
- マイクロ波媒介カルボキシル酸イソニトリルカップリング.
- 環境温度チオ酸イソニトリルカップリング.
- 炭酸酸/チオ酸とアミンのイソニトリル媒介結合.
主要な成果:
- イソニトリル化学をシクロスポリンAの全合成に成功させた.
- 様々な条件下で効率的なアミド結合形成の実証.
- サイクロスポリンA構造内の挑戦的なアミド結合の形成.
結論:
- イソニトリルカップリングは,複雑な循環型ポリペプチドを合成するための多用途かつ効果的な戦略を提供します.
- 開発された合成経路は,ペプチド合成方法論の貴重な進歩を提供します.
- このアプローチは,薬剤の発見と開発におけるイソニトリル化学の可能性を強調しています.
関連する概念動画
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Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
Cycloaddition Reactions: MO Requirements for Thermal Activation
Thermal cycloadditions are reactions where the source of activation energy needed to initiate the reaction is provided in the form of heat. A typical example of a thermally-allowed cycloaddition is the Diels–Alder reaction, which is a [4 + 2] cycloaddition. In contrast, a [2 + 2] cycloaddition is thermally forbidden.

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