抗高血压剂瓦尔萨坦的两个同型二盐
Petr A Buikin1, Alexander A Korlyukov2, Pavel V Dorovatovskii3
1N.S. Kurnakova Institute of General and Inorganic Chemistry, Leninskii pr. 31, Moscow, 119991, Russian Federation.
Acta crystallographica. Section C, Structural chemistry
|December 5, 2025
概括
确定了二瓦尔萨坦水合物的晶体结构,揭示了溶剂分子如何影响离子协调. 这些结构形成由键和疏水相互作用稳定的二维层.
科学领域:
- 材料科学 材料科学 材料科学
- 晶体学 晶体学是指结晶学.
- 协调化学 协调化学
背景情况:
- 双瓦尔萨坦是一种抗高血压药物.
- 了解药物水合物的晶体结构对于配方和稳定性至关重要.
- 药物物质中的多态性可能会影响生物可用性和治疗疗效.
研究的目的:
- 为了确定两个二瓦尔萨坦水合物的晶体结构.
- 研究溶剂分子对离子协调环境的影响.
- 阐明这些水合物中的超分子组合和键网络.
主要方法:
- 粉末X射线衍射 (PXRD) 用于初始结构的确定.
- 同步辐射用于高分辨率的晶体结构分析.
- 单晶X射线衍射和精细化,以获得详细的结构洞察力.
主要成果:
- 确定了双瓦尔萨坦3.5-酸盐 ([Na2(C24H27N5O3) ((H2O) 3.5) n) 的晶体结构.
- 重结晶产生了一种二瓦尔萨坦2.67乙醇0.33-溶酸盐 ([Na2(C24H27N5O3) ((C2H5OH) 0.33 ((H2O) 2.67]n) 与失序的溶剂位点.
- 溶剂分子的数量改变了离子的协调,同时保持了其他两个离子的共同协调.
- 这两种结构都有桥接瓦尔萨坦二和水分子,形成具有疏水表面的二维层.
结论:
- 双瓦尔萨坦水合物表现出由溶剂含量影响的复杂晶体结构.
- 离子的协调环境对水合和溶解水平敏感.
- 通过协调和键形成的2D层的形成决定了固态架构.
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