通过光生物催化氧化合的立体选择性氨基酸合成
Tian-Ci Wang1, Binh Khanh Mai2, Zheng Zhang1
1Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA, USA.
Nature
|May 1, 2024
概括
研究人员开发了一种新的氧化交叉合的光生物催化方法. 这种方法可以使用光和工程酶创建新的,立体化学控制的非正规氨基酸.
科学领域:
- 生物化学和有机化学
- 酶工程和生物催化
- 光化学和激素反应
背景情况:
- 光生物催化,使用光来增强酶活性,是一种创建新化学反应的新策略.
- 现有的光生物催化系统主要局限于还原性或减氧过程.
- 对于小分子催化剂来说,不对称的激素反应具有挑战性,突出显示了对新方法的需求.
研究的目的:
- 为不对称的sp3sp3氧化交叉合开发光生物催化方法.
- 创建一系列具有定义立体中心的新型非正规氨基酸.
- 扩大光生物催化剂的范围,超越还原性和氧化-中性反应.
主要方法:
- 采用工程化氧化生物催化剂 (三胺酸酶) 和光氧化催化剂.
- 采用氧化交叉合策略,涉及有机试剂和氨基酸.
- 用于控制激素前体合的激素酶的定向演化.
主要成果:
- 在有机试剂和氨基酸之间实现光生物催化不对称的sp3sp3氧化交叉合.
- 合成多种多样的α-三和四替代非正规氨基酸,最多有两个连续的立体中心.
- 证明了各种基因前体,包括基,基和基试剂的反和异控制合.
结论:
- 合作的光氧-氧生物催化能够实现前所未有的立体选择性分子间自由基转化.
- 这种方法为合成复杂的非自然氨基酸提供了强大的平台.
- 这些发现显著扩大了合成化学中的光生物催化能力.
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