Current routes to nitrogen-containing heteroarylalanines involve complex multistep synthesis and are often reliant on protection/deprotection steps and wasteful chromatographic purifications. In order to complement existing methodologies, a convenient telescopic strategy was developed for the synthesis of l-pyridylalanine analogues (12 examples) and other l-heteroarylalanines (5 examples) starting
目前获得含氮杂芳基丙
氨酸的路线涉及复杂的多步合成,并且通常依赖于保护/脱保护步骤和浪费的色谱纯化。为了补充现有方法,开发了一种方便的伸缩策略,用于从相应的醛开始合成l-
吡啶基丙
氨酸类似物(12 个实例)和其他l-杂芳基丙
氨酸(5 个实例)。来自Anabaena variabilis的苯丙
氨酸解
氨酶 (PAL)被用作
生物催化剂,通过在必要时使用额外的去消旋化级联反应,转化率在 88% 到 95% 之间,分离产率为 32-60% 和完美的对映纯度 (>99% ee) .