总合成和细胞毒性评价的spirostanol桑素吉托宁的总合成和细胞毒性
Yong Li1,2, Xun Lv3, Jun Liu1,2,4
1State Key Laboratory of Environmental Chemistry and Eco-toxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. junliu@rcees.ac.cn.
Organic & biomolecular chemistry
|February 16, 2024
概括
这项研究有效地合成了螺旋醇氨酸gitonine,并评估了其对癌症细胞系的细胞毒性活性. 吉托宁衍生物表现出中度至优异的抑制活性,具有影响细胞毒性的特定结构特征.
科学领域:
- 有机化学 有机化学
- 药用化学 医学化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 螺旋醇沙因和吉托宁一样,是具有潜在治疗应用的天然产品.
- 复杂的天然产品的高效合成对于进一步的生物评估和药物开发至关重要.
研究的目的:
- 开发一条有效的合成路径,用于gitonine及其衍生物.
- 评估合成吉托宁类型的细胞毒性活动,以对抗人类癌细胞系 (A549,HepG2,MCF-7).
- 确定负责吉托宁细胞毒性作用的关键结构特征.
主要方法:
- 在12个步骤中总合成吉托宁,总产量为18.5%.
- 作为原料,使用了异 propyl β-D-1-thiogalactopyranoside (IPTG) 和tygogenin.
- 采用了一种级联两步甘化和施密特的反向合成程序.
- 对A549,HepG2和MCF-7癌细胞系进行了细胞毒性测试.
主要成果:
- 取得了成功和高效的吉托宁合成.
- 合成的吉托宁及其类似物对经过测试的癌症细胞系表现出中度至优异的细胞毒性活性.
- 移除β-D-galactopyranosyl残留物并没有显著影响抑制活性.
- 糖单位的进一步分裂导致了活动的大幅减少.
- 发现,在甘上存在的2α-基组会减弱细胞毒性.
结论:
- 开发的合成策略为进一步研究提供了gitonine及其类似物.
- 结构性修改,特别是糖化酶的存在和程度,显著影响了吉托宁的细胞毒性潜力.
- 这些发现为抗癌药物设计提供了关于螺旋醇沙因的结构-活性关系的宝贵见解.
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