赞-尿素复合物的制备,特征和抗氧化能力
Catherine Ortega1, Manami Nomura2, Mizuki Ohtomo2
1Pharmaceutical Research and Drug Development Laboratories, Department of Pharmacy, School of Health Care Professions, University of San Carlos, Cebu 6000, Philippines.
Materials (Basel, Switzerland)
|June 13, 2025
概括
这项研究通过使用合来创建一个ksanthon-urea复合物来增强ksanthon的溶解性. 该复合物显示出更好的溶解性,溶解性和抗氧化性质,证实了治疗潜力的成功配方.
科学领域:
- 制药科学 制药科学
- 材料科学 材料科学 材料科学
背景情况:
- 克桑具有广泛的治疗特性,包括抗瘤和抗炎作用.
- 溶解度差限制了许多桑化合物的治疗应用.
- 复杂化是一种提高难溶性药物的物理化学性质的策略.
研究的目的:
- 为了增强溶解性和溶解性,一个不易溶解的克桑.
- 使用合制备一个1: 1摩尔比率的桑-尿素复合物.
- 描述综合体并评估其改进的特性.
主要方法:
- 采用振动棒磨机的Cogring方法来制备桑-尿素复合物.
- 差分扫描热量计 (DSC) 用于热分析.
- 粉末X射线衍射 (PXRD) 和扫描电子显微镜 (SEM) 用于结构特征.
- 福里埃变换红外光谱 (FTIR) 和扩散顺序光谱核磁共振 (DOSY-NMR) 用于分子相互作用分析.
- 可溶性,溶解和抗氧化能力的评估.
主要成果:
- 联结导致了1:1摩尔比的桑-尿素复合体,其热,结构和形态特性发生了变化.
- 对复合物来说,可溶性 (几乎增加2倍) 和溶解率的显著改善被观察到.
- 与原生桑相比,桑-尿素复合体显示出增强的抗氧化能力.
- 光谱和NMR分析证实了成功的复合和改变的分子扩散.
结论:
- 合方法有效地产生了1:1的桑尿素复合物,显著提高了溶解度和溶解度.
- 开发的复合物表现出改善的物理化学特性和增强的抗氧化活性.
- 这种配方策略有望提高溶性较差的桑的治疗疗效.
相关概念视频
Radical Autoxidation
2.1K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
2.1K
Preparation of Epoxides
7.5K
Overview
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of...
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of...
7.5K
EDTA: Auxiliary Complexing Reagents
570
EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...
570


