水杨酰胺中分子内脱氢(sp 3)C–O键的形成可以由活性Cu / O 2物种引发,以生成药物相关的二氢-恶嗪酮。实验结果表明,两个偶合伙伴中的立体电子参数是键形成中位点选择性的控制因素。包括同位素标记在内的机械研究,动力学研究有助于提出催化循环。该方法为正在研究的新药CX-614的合成提供了便利,该新药具有寻找帕金森氏病和阿尔茨海默氏病治疗的潜力。
Enantioselective Copper-Catalyzed Electrophilic Dearomative Azidation of β-Naphthols
摘要:
The first example of copper-catalyzed enantioselective dearomative azidation of beta-naphthols using a readily available N-3-transfer reagent is reported. A series of 2-hydroxy-1-naphthamides bearing a complex N-substituent were converted to the corresponding products in high yields with up to 96% ee, and chiral 1-azido-2-hydroxy-1-naphthoates were obtained with up to 90% ee under mild reaction conditions. The azides could be further transformed into the corresponding 1,2,3-triazoles smoothly via "click" reaction.