克洛米芬的Trans/Cis异构体的无形状态之间的比较:相似之处和差异
Jules Trubert1, Marie-Rose Garda1, Liubov Matkovska1
1Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Groupe de Physique des Matériaux UMR 6634, Rouen F-76000, France.
Molecular pharmaceutics
|October 10, 2025
概括
无形克洛米芬异构体,恩克洛米芬和祖克洛米芬,尽管具有相似的玻璃过渡温度,但表现出明显的放松行为. 与恩克洛米芬相比,祖克洛米芬具有更大的动态异质性和不同的放松模式.
科学领域:
- 固态化学 固态化学
- 材料科学是一种材料科学.
- 物理化学 物理化学
背景情况:
- 无形固体形式对于药物配方至关重要,影响稳定性和生物可用性.
- 了解无形状态中的分子运动是预测材料性质的关键.
- 克洛米芬酸盐是一种广泛使用的药物,需要对其同位素进行详细的表征.
研究的目的:
- 为了研究和比较无形的enclomiphene和zuclomiphene的分子动力学和放松行为.
- 为了阐明在它们的无形状态中的trans/cis二聚体之间的微妙差异.
- 为了将这些发现与之前观察到的异构体之间的相似性进行对比.
主要方法:
- 使用融冷却隔离无形克洛米芬trans/cis异构体.
- 差分扫描热度计 (DSC) 用于确定玻璃过渡温度 (Tg).
- 宽带介电光谱 (BDS) 用于分析放松动态和分子运动.
主要成果:
- 通过融冷却成功制备了无形的恩克洛米芬和祖克洛米芬.
- 两种异构体都显示出接近Tg值,但在放松和分子移动性方面存在显著差异.
- 与恩克洛米芬相比,祖克洛米芬的动态异质性增加,导致明显的初级和二级放松.
结论:
- 在无形的trans/cis clomiphene二聚体之间存在微妙的差异,而异于enantiomers的相似之处.
- 分子的移动性和放松性对无形状态中的立体异构体配置高度敏感.
- 这些发现为配方和开发基于克洛米芬的药品提供了宝贵的见解.
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