| 摘要 |
Process for producing L-aminoacids having general formula (I), in which R1 is an alkyl residue with a maximum of 12 carbon atoms if necessary substituted with hydroxy groups, mercapto groups, halogen atoms, amino groups, carbonyl groups or guanidino groups and/or interrupted by oxygen atoms, nitrogen atoms or sulfur atoms, and in the case of the mercapto compounds having the formula (I), also their dithiocompounds. According to this process, the micro-organism Nocardia spec. DSM 3306 or its enzymes are allowed to act on a D,L-imidazolidinedione derivate having general formula (II), in which R1 has the meaning described above or in the case of the mercapto compounds, also on their dithiocompounds. |
