Title:
RESOLUTION OF (R,S)-CYSTEINE RACEMIC COMPOUND
Document Type and Number:
Japanese Patent JPS58128366
Kind Code:
A
Abstract:
To separate the racemate (R,S)-cysteine, the racemate is condensed in an inert solvent with an enantiomerically enantiomeric monosaccharide of the group of aldoses having 4 to 7 carbon atoms to form the corresponding 2-substituted thiazolidin-4-carboxylic acid and the mixture of diastereomers obtained separated from each other. Subsequently, the isolated unitary diastereomers are reacted in an inert solvent with a carbonyl reagent to split the ring and the enantiomerically pure cysteine in each case is isolated as such or as the corresponding cystine.
Inventors:
HORUSUTO BETOOGE
KAARUHAINTSU DORAUTSU
AKUSERU KUREEMAN
YURUGEN MARUTENSU
HORUSUTO BUAIGERU
KAARUHAINTSU DORAUTSU
AKUSERU KUREEMAN
YURUGEN MARUTENSU
HORUSUTO BUAIGERU
Application Number:
JP947383A
Publication Date:
July 30, 1983
Filing Date:
January 25, 1983
Export Citation:
Assignee:
DEGUSSA
International Classes:
C07B57/00; C07B31/00; C07C67/00; C07C313/00; C07C319/28; C07C323/58; C07H9/06; C07H15/14; C07D277/06; (IPC1-7): C07C148/04; C07C149/247; C07H9/06
Attorney, Agent or Firm:
Toshio Yano