L-Phenylglycine is homologated by the use of 2-(trimethylsilyl)thiazole into (2R,3S)-N-benzoyl- and N-tert-butoxycarbonyl-3-phenyl-isoserine, which are isolated as acetonide derivatives in 47 and 35% overall yields and with 84 and 90% ee, respectively.
通过使用
2-(三甲基硅基)噻唑将 L-苯基甘
氨酸均质化为 (2R,3S)-N- 苯甲酰基和 N-叔丁氧羰基-
3-苯基异丝氨酸,并分离出乙酰内酯衍
生物,总产率分别为 47% 和 35%,ee 值分别为 84% 和 90%。