抗生物質シプロフロクサシンの水和および無水形態における包装相互作用:固体NMR,X線 difraktion,およびコンピュータシミュレーションの研究
Luís Mafra1, Sérgio M Santos, Renée Siegel
1Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal. lmafra@ua.pt
Journal of the American Chemical Society
|November 29, 2011
まとめ
核磁共振 (NMR) とX線微分法 (XRD) は,結晶構造がシプロフロクサシンにどのように影響するかを明らかにしています.
科学分野:
- 固体化学 固体化学
- マテリアルサイエンス 材料科学
- 医薬品科学とは,医薬品科学のことである.
背景:
- 薬剤の配列を理解するために,結晶学とスペクトロスコピーは極めて重要です.
- シプロフロキサチンは,異なる結晶形を示し,その性質に影響を与えます.
- 水分補給は,医薬品の固体状態の振る舞いを大幅に変化させることができます.
研究 の 目的:
- シプロフロクサシン無水和水素の超分子組成を調べるために.
- NMR化学シフトに対する結晶の詰め込みと水分化の影響を定量化するために.
- 不溶性薬物における水分化の指標として,NMR化学シフトの有用性を評価する.
主な方法:
- 実験的核磁共振 (NMR) スペクトロスコーピー. 実験的な核磁共振 (NMR) スペクトロスコーピー.
- 結晶構造分析のためのX線微分法 (XRD).
- 分子相互作用の計算モデリング.
主要な成果:
- シプロフロキサシン水素の詳細な (1) H と (13) C 共振配分.
- 水晶包装による化学シフト変化の定量化,H結合とCH··π接触を含む.
- 水分摂取時に有意な化学シフトの変動 (5ppmまで) が観察され,水分化の感受性を示しています.
結論:
- NMRの化学的シフトは,シプロフロクサシンにおける結晶の詰め込みと水分化に敏感である.
- これらのシフトは,溶解性の低い水素における水分化/脱水過程の効果的な検出器として機能します.
- 固体形態の理解は,医薬品開発に不可欠です.
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