机制研究和方法,以防止aglycon转移的thioglycosides的方法
Zhitao Li1, Jeffrey C Gildersleeve
1Laboratory of Medicinal Chemistry, Center for Cancer Research, NCI-Frederick, 376 Boyles Street, Building 376, Room 109, Frederick, Maryland 21702, USA.
Journal of the American Chemical Society
|August 31, 2006
概括
阿格利康转移是硫糖化物合成中常见的一种副作用. 2,6-二甲基 (DMP) 酸盐有效地防止了这一问题,为合成复杂碳水化合物提供了一种改进的方法.
科学领域:
- 碳水化合物化学 碳水化合物化学
- 有机合成 有机合成
- 糖基化反应 糖基化反应
背景情况:
- 硫糖化物对于合成复杂碳水化合物,寡糖和模仿剂至关重要.
- 硫糖化物化学的一个重大挑战是有问题的副作用反应,称为AGGYCON转移.
- 这种副作用可能会对糖化效率和产品完整性产生负面影响.
研究的目的:
- 为了研究甘油化物化学中的甘油转移副作用反应的机制和范围.
- 识别和评估在糖化反应期间防止亚格利康转移的策略.
- 引入和验证一种新型的亚格利康,有效抑制亚格利康转移.
主要方法:
- 进行了机制研究,以阐明甘转移的过程.
- 检查了各种类型的硫糖化物,包括武装和解除武器的变种.
- 修改过的甘被合成并测试了它们防止转移的能力.
- 在模型和复杂的糖化反应中评估了2,6-二甲基 (DMP) 糖的疗效.
主要成果:
- 证实,阿格利康转移会影响广泛的硫糖化物,导致异构和产品降解.
- 副作用反应在复杂的合成策略中构成重大挑战,例如固相和单糖化.
- 2,6-二甲基 (DMP) 酸盐在防止在各种反应条件中转移酸盐方面表现出高效.
- DMP 组很容易安装,并有效地作为糖捐赠剂发挥作用.
结论:
- 阿格利康转移是硫糖化物化学中普遍存在的问题,需要仔细考虑.
- 2,6-二甲基 (DMP) 基提供了一个强大的解决方案,以减轻基的转移.
- 该DMP组代表了价值的进步为硫糖化物捐赠者,促进复杂碳水化合物的更可靠的合成.
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