相关实验视频
Updated: May 15, 2025

05:07
Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
Published on: June 23, 2019
6.6K
基于Pyrazole的化合物的衍生品作为潜在的致癌剂
Lesetja V Ramoba1, Wakopo J Nzondomyo1, Karabo Serala2
1Department of Chemistry, Tshwane University of Technology, P.O. Box X680, Pretoria 0001, South Africa.
ACS omega
|April 7, 2025
概括
合成了五种新的pyrazole化合物,并对抗癌活性进行了测试. 化合物L2和L3对胰腺癌和乳腺癌细胞分别表现出中度细胞毒性.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 药理学 药理学是指药理学的学科.
背景情况:
- 皮拉衍生物因其多样化的生物活性而闻名,包括潜在的抗癌性质.
- 开发新的化疗剂对于对抗耐药性癌症至关重要.
研究的目的:
- 为了合成和描述五种基于pyrazole的化合物.
- 为了评估这些化合物的体外细胞毒性,与各种人类癌症细胞系对比.
主要方法:
- 通过将β-二甲衍生物与氨酸合物凝结合成皮拉化合物 (L1-L5).
- 使用FT-IR,UV-vis,NMR (1H, 13C) 和LC-MS光谱进行了表征.
- 使用MTT测定对胰腺癌,乳腺癌和宫癌细胞系进行细胞毒性评估,并使用西斯和凝作为阳性对照.
主要成果:
- 所有五种pyrazole化合物 (L1-L5) 都成功合成和表征.
- 化合物L2和L3对特定癌症细胞系表现出中度细胞毒性:L2对CFPAC-1 (胰腺) 的IC50为61.7±4.9μM,L3对MCF-7 (乳腺) 的IC50为81.48±0.89μM.
- 单晶X射线衍射证实了L1的结构,N1-N1'的键距离为1.361(3) Å.
结论:
- 合成的皮拉衍生物显示出作为抗癌剂的潜力.
- 化合物L2和L3需要进一步研究它们在胰腺癌和乳腺癌中的疗效.
相关概念视频
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists
197
Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
Phenothiazines, such as prochlorperazine...
197
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
Cancer Therapies
7.5K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.5K
Combination Therapies and Personalized Medicine
4.8K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
4.8K
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
2.9K
The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...
2.9K
Chemotherapy-Induced Nausea and Vomiting: 5-HT3 Receptor Antagonists
156
5-HT3 receptor antagonists, such as dolasetron, granisetron (Kytril), ondansetron (Zofran), and palonosetron (Axoli), are crucial in managing chemotherapy-induced nausea and vomiting (CINV) and postoperative nausea. These drugs selectively block 5-HT3 receptors in the visceral vagal and spinal afferent nerves, chemoreceptor trigger zone, and the vomiting center. They have a rapid onset of action and can be given as a single dose before chemotherapy. Ondansetron and granisetron, in particular,...
156

