Enantioselective Synthesis of α-Substituted Serine Derivatives via Cu-Catalyzed Oxidative Desymmetrization of 2-Amino-1,3-diols
作者:Kosuke Yamamoto、Shota Ishimaru、Tatsuya Oyama、Satoko Tanigawa、Masami Kuriyama、Osamu Onomura
DOI:10.1021/acs.oprd.8b00407
日期:2019.4.19
The enantioselective copper-catalyzed oxidative desymmetrization for the synthesis of chiral α-substituted serine derivatives is reported. The combination of Cu(OTf)2/(R,R)-PhBOX catalyst system, N-bromosuccinimide, and MeOH enables us to provide chiral α-substituted serines from N-2-methylbenzoyl-protected 2-amino-1,3-diols through a simple procedure at room temperature under an air atmosphere. A
报道了用于手性α-取代的丝氨酸衍生物的合成的对映选择性铜催化的氧化脱对称。Cu(OTf)2 /(R,R)-PhBOX催化剂体系,N-溴琥珀酰亚胺和MeOH的组合使我们能够从N -2-甲基苯甲酰基保护的2-氨基-1,3-提供手性α-取代的丝氨酸室温下在大气气氛下通过简单的步骤制备二醇。该方法可耐受包括芳基和杂芳基在内的多种α-取代基,并以高至高收率和高对映选择性获得了相应的手性丝氨酸衍生物。