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Reverse Total Shoulder Arthroplasty
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イソマラバリカントリターペノイドの総合成
Yaroslav D Boyko1, Christopher J Huck1, David Sarlah1
1Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States.
Journal of the American Chemical Society
|August 27, 2019
まとめ
研究者らは,細胞毒性のあるイソマラバリカントリテルペノイド,ラブダストレル酸A,ステレチンEの最初の完全な合成を達成しました.この突破は,これらの困難な海洋天然製品にアクセスするための一般的な戦略を提供します.
科学分野:
- 有機化学
- 自然製品合成
- 薬剤化学
背景:
- イソマラバリカントリテルペノイドは,高い細胞毒性で知られている海洋天然製品のクラスです.
- 複雑で緊張したトランスシン-トランスペリヒドロベンズ[e]インデンの核は,重要な合成課題を提示しています.
- これまでのこれらの化合物の合成は 限られたものであったか 成功しなかった.
研究 の 目的:
- (±) -ラブダステル酸Aと (±) -ステレチンEの最初の完全合成を達成する.
- イソマラバリカントリテルペノイドの合成のための一般的かつ効率的な戦略を開発する.
- 複雑な多循環構造の構築のための新しい合成方法論を探求する.
主な方法:
- 商用ゲラニラセトンから14段階の線形合成
- コア構造を形成するために, 還元的な根性ポリエンのサイクリングを使用した.
- 前例のないオキシダティブ・ラウテンストラウヒ・サイクロイソメリゼーションを用いた.
- p-トルエネスルフォニルヒドラゾンの組み込みのアンポルングα置換と in situ 還元性トランスポーゼーション
- サイドチェーンの施工のための後期クロスカップリングを適用した.
主要な成果:
- (±) -ラブダステル酸Aと (±) -ステレチンEを合成した.
- トランス-シン-トランス-ペリヒドロベンズ[e]インデンの特徴的な核を効率的に構築した.
- 多種多様な多不飽和サイドチェーンを合成するためのモジュラーアプローチを示した.
- 他のイソモラバリカン族に 適用される一般的な戦略を確立した.
結論:
- 開発された合成経路は,難問な海洋トリテルペノイドへのアクセスに効率的で一般的です.
- 複雑な分子合成のための新しい道を開いた.
- この研究により,以前は入手不可能だった 細胞毒性のある海洋生物が 生物学的研究のために利用可能になった.
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