来自Euphorbia esula的化学成分
Defeng Yan1,2, Miaomiao Zhang1,2, Yuqing Song1,2
1State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
Plants (Basel, Switzerland)
|September 27, 2025
概括
这项研究确定了Euphorbia esula的新型抗炎化合物,Euphorbia esula是一种用于传统医学的植物. 几种分离的化合物显示出显著抑制巨细胞中氧化释放.
科学领域:
- 植物化学 植物化学
- 药理学 药理学是指药理学的学科.
- 自然产品 化学 化学
背景情况:
- 欧 (Euphorbia esula) 是一种广泛分布的植物,具有传统医疗用途的历史.
- 负责其抗炎和细胞毒性作用的生物活性化合物尚未完全理解.
- 识别这些化合物可以导致新的治疗剂.
研究的目的:
- 从Euphorbia esula的空中部分中分离和描述化学成分.
- 为了研究分离的化合物的抗炎潜力.
- 探索来自Euphorbia属的自然产品的结构多样性.
主要方法:
- 使用染色学技术从Euphorbia esula中提取和分离化合物.
- 使用高分辨率电子喷雾电离质谱 (HRESIMS),核磁共振 (NMR),红外 (IR) 和紫外线 (UV) 光谱学来阐明结构.
- 通过实验和计算的电子循环二元化 (ECD) 数据来确定绝对配置.
- 在体外抗炎试验中,使用脂聚糖 (LPS) 诱导的RAW 264.7巨细胞来测量氧化 (NO) 抑制.
主要成果:
- 确定了两种新的化合物,一种烯醇化物 (1) 和一种烯酸类相似物 (2),以及九种已知的化合物 (3-11).
- 化合物3-11首次从Euphorbia esula中分离出来,而化合物4,5,7和9-11对Euphorbia属来说是新鲜的.
- 发现了多种化学骨架,包括烯类化物,尼拉索化物, furanone 和一个cyclooct-2-enone.
- 化合物1,3,5,6,7和8通过抑制LPS诱导的RAW 264.7巨细胞中氧化 (NO) 释放而表现出抗炎活性.
结论:
- 该研究成功地从Euphorbia esula中分离和特征化了新的和已知的化合物,扩大了其植物化学概况的知识.
- 几种孤立的化合物显示出有前途的抗炎作用,验证了该植物的一些传统用途.
- 这些发现凸显了Euphorbia esula作为新抗炎药物发现的来源的潜力.
相关概念视频
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An ether molecule has a net dipole moment due to the polarity of C–O bonds. Subsequently, boiling points of ethers are lower than those of alcohols of comparable molecular weight and slightly higher than those of hydrocarbons of comparable molecular weight (Table 1).
Ethers can act as hydrogen bond acceptors, making them more water-soluble than hydrocarbons, but since ethers cannot act as hydrogen bond donors, they are much less soluble in water than alcohols. Ethers are considered...
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02:28Structure and Nomenclature of Ethers
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Structure and Bonding
Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — identical or different — alkyl, aryl, or vinyl groups. The C–O–C linkage in dimethyl ether — the simplest ether — has an approximately tetrahedral bond angle of 110.3 degrees. The oxygen atom is sp3- hybridized, with the C–O distance being about 140 pm.
Classification of Ethers
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Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — identical or different — alkyl, aryl, or vinyl groups. The C–O–C linkage in dimethyl ether — the simplest ether — has an approximately tetrahedral bond angle of 110.3 degrees. The oxygen atom is sp3- hybridized, with the C–O distance being about 140 pm.
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02:36Crown Ethers
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