素早く調節されるアトロピソメールP,N-リガンドによって有効なエナントオセレクティブアルキン結合添加
Sourabh Mishra1, Ji Liu1, Aaron Aponick1
1Center for Heterocyclic Compounds, Department of Chemistry, University of Florida , Gainesville, Florida 32611, United States.
Journal of the American Chemical Society
|February 17, 2017
まとめ
新しいキラルバイアリルヘテロサイクリックリガンドであるMe-StackPhosは,メルドラムの酸受容体の銅触媒によるエナチオセレクティブ結合アルキニレーションを可能にします. この方法は,臨床前薬を含む有価なキラル構成要素を効率的に合成します.
科学分野:
- 有機化学
- 非対称な触媒
- 薬剤化学
背景:
- 伝統的な6基のP,N-リガンドは,チューニング選択性と反応性において制限がある.
- 5基のキラルバイアリルヘテロサイクルのエスカファードは,リガンドの進化にとって有望な代替案である.
- 薬の発見にはキラルの構成要素を 合成する効率的な方法の開発が不可欠です
研究 の 目的:
- 新しい5基のキラルバイアリルヘテロサイクリックリガンドを用いた,銅触媒による新種のエナンチオセレクティブ結合アルキニレーション反応を報告する.
- クイラル β-アルキニルメルドラム酸の構成要素を合成するこの反応の有用性を実証する.
- 臨床前薬の合成におけるこの方法の応用を紹介する.
主な方法:
- 銅で触媒化された反応で新しい5基のキラルビアリルヘテロサイクリックリガンドMe-StackPhosを使用した.
- 様々なアルキンでメルドラムの酸受容体のエナンチオセレクティブ結合アルキニレーションを行った.
- 高いエナチオ選択性を達成するために,非対称な触媒原理を用いた.
主要な成果:
- 開発されたMe-StackPhosリガンドは,結合アルキニル化において高収量と優れたエナチオ選択性を促進した.
- 反応は幅広い基板範囲を示し,幅広いアルキン結合パートナーを許容しました.
- 高い効率でキラル β-アルキニルメルドラムの酸の構成要素を 合成しました
結論:
- 新しい Me-StackPhos リガンドは,非対称な触媒のリガンド設計における重要な進歩を表しています.
- 報告されたCu-触媒アルキニレーションは,価値あるキラル中間物質への多用途かつ効率的な経路を提供します.
- この方法により,OPC 51803のような薬剤を含む複雑な分子の効率的な合成が可能になります.
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