optically active sulphur containing amino acid derivatives, their production, their polymerization, optically active polymers, and their use.

摘要

Optically active sulphur-containing amino acid derivatives of the formula (I) IMAGE in which X represents oxygen or an NR4 group, A represents a methylene or dimethyl group, optionally monosubstituted or disubstituted by C1-C4-alkyl, and R-R4 have the meaning given in the description, their preparation, their polymerisation to give optically active polymers, and the use of these optically active polymers as adsorbents for the chromatographic resolution of racemates into the enantiomers.