Nδ-Tosyl-Nδ-benzyloxy-Dl-ornithine was synthesized starting from γ-(N-tosyl-N-benzyloxy)-aminopropyl bromide and diethyl acetamidomalonate and resolved enzymatically to give the l- and d-isomers. Removal of one or both of protecting groups gave Nδ-benzyloxyornithine or Nδ-hydroxyornithine. The reduction product of Nδ-hydroxy-l-ornithine was identical with authentic l-ornithine.
Nδ-
甲苯磺酰基-Nδ-苯甲氧基-D1-
鸟氨酸以γ-(N-
甲苯磺酰基-N-苯甲氧基)-
氨基丙基
溴和
乙酰氨基丙二酸二乙酯为原料合成,并通过酶法拆分得到l-和d-异构体。除去一个或两个保护基团得到Nδ-苄氧基
鸟氨酸或Nδ-羟基
鸟氨酸。 Nδ-羟基-
L-鸟氨酸的还原产物与正品
L-鸟氨酸相同。