一个实用和可扩展的合成几个基因修改的3'-O-甲基核糖核化物
Samudrala Rajendra Prasad1, Srishylam Penjarla2, Paidi Yella Reddy2
1Sapala Organics Pvt. Ltd., Plot No. 146B & 147, IDA Mallapur, Hyderabad, 500 076, A.P., India; Department of Chemistry, GITAM Deemed to Be University, Hyderabad, Telangana, 502329, India.
Carbohydrate research
|November 22, 2023
概括
一个新的7步合成提供3'-O-甲基化核化物,对于抗病毒药物和mRNA疫苗帽类似物至关重要. 这种方法只能产生所需的3'-O-基化产品,避免不需要的异构体.
科学领域:
- 有机化学 有机化学
- 药用化学 医学化学
- 核酸化学 核酸化学
背景情况:
- 3"-O-改性核酸因其链终结特性和抗病毒潜力而得到认可.
- 目前的合成方法可能会产生异构核酸的混合物,使净化和应用复杂化.
- 获得特定的3"-O-基化核化物对于开发新疗法和生物工具至关重要.
研究的目的:
- 开发一种高效且可扩展的3"-O-methyl-d-ribofuranose衍生物的合成方法.
- 为了证明合成的中间体在制造多种核类相似物中的实用性.
- 建立对3"-O-化核酸的选择性路径,避免2"-O-化.
主要方法:
- 一个由商业上可用的1,2:5,6-di-O-isopropylidene-α-d-allofuranose开始的七步合成.
- 保护 ribofuranose 中间体 (8),然后进行核酸类比合成.
- 功能组对纯氨酸核酸的操纵 (21) 以生成基基修饰核酸的库.
主要成果:
- 在7步合成受保护的1,2,-di-O-acetyl-5-O-benzoyl-3-O-methyl-d-ribofuranose时,获得了30%的总产量 (8).
- 成功合成了9-(3 -O-甲基-β-d-ribofuranosyl) -6 氨酸 (21) 和其他六种核酸类类似物,产量很好.
- 从纯原核酸21产生了五种新型基基改性核酸的库.
结论:
- 描述的合成提供了一个直接和有效的途径,以3阿基化核化物.
- 这种方法只能产生3个ahydro-O-alkylated核化物,不含异构2个ahydro-O-alkylated产品.
- 合成的核酸具有广泛的应用,包括作为mRNA疫苗帽类型的潜力和抗病毒药物开发.
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