A process for amino acid derivatives shown by the below general formula (I):
(wherein R
1
means a hydrogen atom or a straight chain or branched chain alkyl group with 1-5 carbon atoms.) having an object to provide a process of the amino acid derivatives of the formula (I) and their synthetic intermediate, t-butoxycarbonylamino-ethylamine, whereby it requires no tedious procedure and is also good in yield, and its application to a mass production is easy, and to provide novel amino acid derivatives of the formula (IV), their synthetic intermediates, and a process thereof, characterized in that it comprises a step to obtain the amino acid derivatives shown by the general formula (I) by hydrolysis of compounds shown by the below formula (II):
(wherein R
1
has the same meaning as described above, and R
2
means a straight chain or branched chain alkyl group with 1-4 carbon atoms.) as well as amino acid derivatives shown by the general formula (IV):
(wherein R
1
means a hydrogen atom or a straight chain or branched chain alkyl group with 1-5 carbon atoms, and n means any one of integers 1-11.), and a process for the amino acid derivative, characterized in that it comprises a reduction step of benzyloxycarbonyl-ω-amino acid derivatives.
                            一种以下通式(I)所示
氨基酸衍
生物的生产工艺:
(其中 R
1
指氢原子或含有 1-5 个碳原子的直链或支链烷基。),其目的是提供一种式(I)
氨基酸衍
生物及其合成中间体--叔丁氧羰基
氨基-
乙胺的工艺,该工艺不需要繁琐的程序,而且收率高,易于应用于大规模生产,并提供新型的式(IV)
氨基酸衍
生物、其合成中间体及其工艺,其特征在于该工艺包括通过
水解下式(II)所示化合物获得通式(I)所示
氨基酸衍
生物的步骤:
(其中 R
1
与上述含义相同,R
2
指 1-4 个碳原子的直链或支链烷基)以及通式(IV)所示的
氨基酸衍
生物:
(其中 R
1
指氢原子或 1-5 个碳原子的直链或支链烷基,n 指 1-11 个整数中的任意一个),以及一种
氨基酸衍
生物的工艺,其特征在于它包括苄氧羰基-ω-
氨基酸衍
生物的还原步骤。