| abstract |
The present invention relates to hydantoins of formula I, n n n in which R is the residue of an amino carboxylic acid or of an amino carboxylic acid derivative, which is obtained formally by removing an NH 2 group from an amino carboxylic acid or an amino carboxylic acid derivative, to the preparation thereof and to the use thereof as intermediates, in particular for preparing pharmaceutically active ingredients. |