Patent · US Expired

Optically active amino acid sulphoxide and amino acid sulphone derivatives

US5481026A · kind A · utility

2Cited by

9References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Michael Grosse-Bley · Neunburg vorm Wald, DE
Bruno Bomer · Bensberg, DE
Rolf Grosser · Schwandorf, DE
Walter Lange · Cologne, DE
Franz-Peter Hoever · Cologne, DE
Dieter Arlt · Cologne, DE

Key dates

Filing date	Jul 1, 1994
Grant date	Jan 2, 1996
Priority date	—
Expiry date	Jul 1, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/18
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to new optically active amino acid derivatives of the general formula (I) ##STR1## in which n, R, R.sub.1, R.sub.2, R.sub.3, X and A have the meaning given in the description, which amino acid derivatives contain sulphoxide or sulphone groups, to two basic synthetic routes for the preparation from sulphur-containing amino acids, to the polymerization of these monomers and to the use of the polymers as optically active adsorbents for chromatographic resolution of racemates to give the enantiomers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.