An optically active amino acid derivative is produced by N-protecting an optically active 3-haloalanine derivative followed by cyclization, or cyclizing this derivative followed by N-protection to thereby give an optically active N-protected-aziridine-2-carboxylic acid derivative which is protected by a benzenesulfonyl group substituted by nitro at the 2- and/or 4-positions and then treating this product with an organic metal reagent, or by N-protecting an optically active 3-haloalanine derivative to thereby give N-protected-aziridine-2-carboxylic acid which is protected by a benzenesulfonyl group substituted by nitro at the 2- and/or 4-positions and then treating this product with an organic metal reagent.
According to this process, natural and unnatural optically active amino acids can be produced from inexpensive materials by using simple procedures.
通过对具有光学活性的 3-卤丙
氨酸衍
生物进行 N 保护,然后进行环化,或对该衍
生物进行环化,然后进行 N 保护,从而得到具有光学活性的 N 保护-
氮丙啶-2-
羧酸衍
生物,该衍
生物在 2-和/或 4-位受到被硝基取代的苯磺酰基的保护,然后用有机
金属试剂处理该产物、或对具有光学活性的 3-卤丙
氨酸衍
生物进行 N 保护,从而得到 N 保护
氮丙啶-2-
羧酸,该
氮丙啶-2-
羧酸在 2-和/或 4-位上受到被硝基取代的苯磺酰基的保护,然后用有机
金属试剂处理该产物。
根据这一工艺,可以通过简单的程序从廉价的材料中生产出天然和非天然的光学活性
氨基酸。