机体催化异对称合成的阿扎比赛克洛[2.1.1]hexanes
Layth Alama1, Nils Frank1, Lennart Brücher1
1Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany.
概括
药物化学家现在可以使用一种新的有机催化方法制造合性azabicyclo[2.1.1]hexanes (aza-BCHs). 这种方法为富含sp3的药物支架提供了模块化和酶选择性合成.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 催化剂是一种催化剂.
背景情况:
- 在药物设计中,用sp3丰富的结构替代二维芳香支架是生物异构的关键.
- 在azabicyclo[2.1.1]hexane (aza-BCH) 支架是一个有价值的pyrrolidine替代品.
- 开发aza-BCHs的模块化和enantioselective合成仍然是一个重大挑战.
研究的目的:
- 开发一种新型非对称的有机催化方法,用于合成奇拉性azabicyclo[2.1.1]hexanes.
- 为了解决目前aza-BCHs的模块化选合成的局限性.
主要方法:
- 一种不对称的有机催化方法,使用受限的 imidodiphosphorimidate (IDPi) Brønsted 酸.
- 双环[1.1.0] (BCBs) 和N-烯胺之间的正式循环添加反应的催化.
- 使用温和的反应条件.
主要成果:
- 成功生成具有高反选择性 (高达99:1 er) 的奇拉性aza-BCHs.
- 这种反应在含有,和胺基的多种BCB中是有效的.
- 实验证据表明一个阶段性的反应机制.
结论:
- 开发的方法提供了一条高效的途径,以致于对酶丰富的aza-BCH支架.
- 这种有机催化策略扩大了在药物化学中构建富含sp3的分子的工具包.
- 这项研究强调了受限布伦斯特德酸在不对称催化中的潜力.
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