A method of producing enantiomerically pure, open-chain N-alkyl-L or D amino acids which can be carried out with good yields and without excessive or expensive purification and suitable for industrial production. A racemic mixture of an open-chain N-acyl-N-alkyl amino acid is split by means of a stereospecific amino acylase coordinated with an enantiomerically pure N-acyl-N-alkyl-L or D amino acid to yield one of the antipodes to the corresponding, enantiomerically pure, open-chain N-alkyl-L or D amino acid. Then, either the remaining initial compound or the cleavage product is separated. The enantiomerically pure, open-chain N-alkyl amino acids are useful, for e.g. cyclosporins.
                            一种生产对映纯的开链N-烷基-L或D
氨基酸的方法,可以在良好的收率下进行,且不需要过度或昂贵的纯化,并适用于工业生产。通过与对映纯的N-酰基-N-烷基-L或D
氨基酸配合的立体特异性
氨基酰化酶分裂开链N-酰基-N-烷基
氨基酸的混合物,得到相应的对映体之一,即对应的对映纯开链N-烷基-L或D
氨基酸。然后,可以分离剩余的初始化合物或裂解产物。对映纯的开链N-烷基
氨基酸可用于例如
环孢素的制备。