We report the first rationally designed (S)-selective MenD from E. coli for the synthesis of functionalized α-hydroxy ketones. By mutation of two amino acids in the active site stereoselectivity of the (R)-selective EcMenD (ee > 93%) was inverted giving access to (S)-5-hydroxy-4-oxo-5-phenylpentanoate derivatives with stereoselectivities up to 97% ee.
我们报告了第一个合理设计的大肠杆菌(S)选择性 MenD,用于合成功能化δ-羟基酮。通过突变活性位点中的两个氨基酸,(R)-选择性 EcMenD(ee > 93%)的立体选择性发生了逆转,从而获得了立体选择性高达 97% ee 的 (S)-5- 羟基-4-氧代-5-苯基戊酸酯衍生物。