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シタグリプチンの高効率の非対称合成
Karl B Hansen1, Yi Hsiao, Feng Xu
1Department of Process Research, Merck Research Laboratory, Rahway, New Jersey 07065, USA.
Journal of the American Chemical Society
|June 11, 2009
まとめ
2型糖尿病薬であるシタグリプチンの新しい緑色の合成が開発されました. この効率的なプロセスは,廃棄物とコストを削減しながら,高純度のシタグリプチンリン酸塩を生成します.
科学分野:
- 薬用化学 薬用化学について
- プロセス・ケミストリー プロセス・ケミストリー
- グリーン・ケミストリー (Green Chemistry)
背景:
- シタグリプチンは選択的ディペプチジルペプチダゼ-4 (DPP-4) 阻害剤です.
- 2型糖尿病 (T2DM) の管理における重要な治療薬である.
- 既存の合成経路は,効率と環境への影響に関して課題を提示しています.
研究 の 目的:
- シタグリプチンの高効率で環境に優しい合成を開発する.
- デヒドロシタグリプチンの中間物質の準備を最適化するために.
- 最終水素化の段階で高いエナチオセレクティビティを達成するために.
主な方法:
- デヒドロシタグリプチンの中間体のための1つのポット,3段階の合成です.
- 低負荷のRh (I) / (t) Bu JOSIPHOS触媒を用いた高度なエナンチオセレクティブ化水素化.
- シタグリプチンをそのリン酸塩として分離する.
主要な成果:
- デヒドロシタグリプチンの中間成分は82%の収量と99.6%以上の純度で製造されました.
- シタグリプチンは,ほぼ完璧な光学および化学的純度で得られました.
- "グリーン"合成は,廃棄物を大幅に削減し,水性廃棄物流を除去します.
- 全体的な単離収量は65%まで達しました.
結論:
- シタグリプチンの費用対効果の高い,スケーラブルで環境的に持続可能な合成が確立されています.
- この最適化されたプロセスは,以前の方法よりも実質的な改善を提供します.
- 開発された経路は製造に適しており,よりグリーンな製薬生産に貢献しています.
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