晶体工程中的Synthon方法,用于调节胺的有机盐中的物理化学特性
Anila M Menon1, Nagamalli Naga Sidhartha2, Ipsha Shruti1
1Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462066, India.
这项研究通过机械化学研磨与辅助剂创造了新的固体形式,提高了propamide (CPA) 的生物利用性. 这些新的CPA盐和共晶体显著提高了溶解度和溶解率,从而在老鼠中产生了更好的药理动力学特性.
科学领域:
- 制药和药物输送 制药和药物输送
- 材料科学和晶体学 材料科学和晶体学
- 药用化学 医学化学
背景情况:
- 提高药物的生物可用性在制药领域至关重要.
- 晶体工程和固态分子识别提供了调节药物特性的策略.
- 公 (CPA) 的溶解度和溶解率是提高的目标.
研究的目的:
- 使用机械化学液体辅助研磨 (LAG) 提高公胺 (CPA) 的可溶性和溶解率.
- 通过与制药界公认的辅助剂共同研磨,发现和描述CPA的新型固态形式.
- 评估这些新的固体形式对CPA溶解率,溶解度和药理动力学特性的影响.
主要方法:
- 机械化学液体辅助研磨 (LAG) 的 (CPA) 用各种辅助剂.
- 用X射线衍射 (XRD) 和其他固态特征技术来识别新型晶体相.
- 可溶性和内在溶解率 (IDR) 的测量.
- 在Sprague-Dawley (SD) 鼠身上进行了体内药理动力学研究.
主要成果:
- 发现了CPA的六个新型固体阶段:盐,盐共晶,以及含有3,4-二氨基胺 (DAP),1,4-二氧化[2.2.2] (DABCO) 和皮佩拉 (PIP) 的盐共晶水合物.
- 与纯CPA相比,新的晶体相显著提高了内在溶解率 (7至131倍) 和溶解度 (2.7至7倍).
- 在体内研究表明,在SD大鼠中,增强CPA配方 (CPADABCO_II和CPAPIP_III) 的药物度增加了4至6倍.
结论:
- 机械化学LAG是一种有效的方法,用于生成具有改善物理化学性能的新型固体CPA.
- 鉴定到的盐和共晶体显示了可溶性和溶解性的显著增强,直接影响了生物可用性.
- 这些发现突显了晶体工程在开发更有效的药物配方和改善的药物动力学特征方面的潜力.
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