【発明の名称】(R,S)-システインラセミ化合物の分離法

Title:

【発明の名称】(R,S)-システインラセミ化合物の分離法

Document Type and Number:

Japanese Patent JPS6033824

Kind Code:

B2

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.

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Inventors:

HORUSUTO BETOOGE
KAARUHAINTSU DORAUTSU
AKUSERU KUREEMAN
YURUGEN MARUTENSU
HORUSUTO UAIGERU

Application Number:

JP947383A

Publication Date:

August 05, 1985

Filing Date:

January 25, 1983

Export Citation:

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Assignee:

DEGUSSA

International Classes:

C07B57/00; C07B31/00; C07C67/00; C07C313/00; C07C319/28; C07C323/58; C07H9/06; C07H15/14; C07D277/06; (IPC1-7): C07C149/247; C07C148/04

Attorney, Agent or Firm:

Toshio Yano

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