基和基C3) -H键的酶性初级氨基化
Zhi-Jun Jia1, Shilong Gao1, Frances H Arnold1
1Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, MC 210-41, Pasadena, California 91125, United States.
Journal of the American Chemical Society
|May 27, 2020
概括
研究人员开发了用于直接C(sp3) -H键氨基化的新型酶,从基胺衍生物中产生初级氨基. 这种生物催化方法为合成有价值的氨基化合物提供了高选择性和效率.
科学领域:
- 生物催化和酶工程
- 有机合成
- 医学化学
背景情况:
- 在药物,天然产品和材料科学中,阿利法性初级氨基是关键的组成部分.
- 现有的合成路径往往缺乏直接的C(sp3) -H键功能化,需要多步骤的过程.
- 氨基组直接安装到未激活的C-H键仍然是一个重要的合成挑战.
研究的目的:
- 开发新的生物催化方法,用于直接氨基化C-sp3-H键.
- 创建能够进行选择性初级氨基合成的新型酶.
- 使用随时可用的基胺衍生物作为源.
主要方法:
- 使用定向进化来设计P411酶 (使用Ser而不是Cys配体的P450变体).
- 这些工程酶被优化为基和基C-H键的选择性功能化.
- 在生物催化转化中使用胺衍生物作为氨基来源.
主要成果:
- 产生了新型酶,可催化具有高化学,区域和酶选择性的C ((sp3) -H键的直接初级氨基化.
- 合成了广泛的胺,包括功能化的胺和胺.
- 生物催化工艺显示出高效率 (高达3930TTN) 和反选择性 (高达96% ee),适用于制剂规模.
结论:
- 这项研究提供了首个前所未有的生物催化方法,用于直接C ((sp3) -H初级氨基化.
- 工程 P411 酶为各种初级氨基的反选择性合成提供了强大的平台.
- 开发的方法为获取有价值的氨基化合物提供了有效和可持续的替代方案.
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