ES2137105B1 - PROCEDURE FOR THE OBTAINING OF N-MONOSUSCUTTED L-CYSTEINS BY ELECTROCHEMICAL WAY. - Google Patents
PROCEDURE FOR THE OBTAINING OF N-MONOSUSCUTTED L-CYSTEINS BY ELECTROCHEMICAL WAY.Info
- Publication number
- ES2137105B1 ES2137105B1 ES009700609A ES9700609A ES2137105B1 ES 2137105 B1 ES2137105 B1 ES 2137105B1 ES 009700609 A ES009700609 A ES 009700609A ES 9700609 A ES9700609 A ES 9700609A ES 2137105 B1 ES2137105 B1 ES 2137105B1
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- Spain
- Prior art keywords
- sub
- sup
- procedure
- obtaining
- electrochemical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procedimiento para la obtención de L-Cisteinas N-Monosustituidas por vía electroquímica. El procedimiento para la obtención de L-cisteinas N- monosustituidas (I) , donde R{sup,1 es alquilo C{sub,1 -C{sub,5 , NH{sub,2 , o NHR{sup,4 , donde R{sup,4 es alquilo C{sub,1 -C{sub,5 ; R{sup,2 es H, benzoilo, carbamoilo, formilo o alcanoil C{sub,1 -C{sub,7 ; y R{sup,3 es H, alquilo C{sub,1 -C{sub,5 , amino, o un catión de un metal alcalino o alcalinotérreo, comprende la reducción electroquímica de una L-cistina N, N"''-disustituida de fórmula general (II), en medio básico, en una célula electroquímica que comprende, al menos, un cátodo, un ánodo, un catolito y un anolito separados por un medio adecuado, a una temperatura entre 0 y 90ºC y una densidad de corriente entre 1 y 500 mA/cm{sup,2 . Un ejemplo de estos compuestos es la N-acetil-L-cisteina útil como mucolítico, antioxidante y anticanceroso.Procedure to obtain L-Cysteines N-Monosubstituted by electrochemical route. The procedure for obtaining N-monosubstituted L-cysteines (I), where R {sup, 1 is alkyl C {sub, 1 -C {sub, 5, NH {sub, 2, or NHR {sup, 4, where R {sup, 4 is C {sub, 1 -C {sub, 5 alkyl; R {sup, 2 is H, benzoyl, carbamoyl, formyl or alkanoyl C {sub, 1 -C {sub, 7; and R {sup, 3 is H, C {sub, 1 -C {sub, 5, amino alkyl, or an alkali or alkaline earth metal cation, comprising the electrochemical reduction of an L-cystine N, N "'' - disubstituted of general formula (II), in basic medium, in an electrochemical cell comprising at least one cathode, an anode, a catholyte and an anolyte separated by a suitable medium, at a temperature between 0 and 90 ° C and a density of current between 1 and 500 mA / cm {sup, 2. An example of these compounds is N-acetyl-L-cysteine useful as a mucolytic, antioxidant and anticancer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES009700609A ES2137105B1 (en) | 1997-03-20 | 1997-03-20 | PROCEDURE FOR THE OBTAINING OF N-MONOSUSCUTTED L-CYSTEINS BY ELECTROCHEMICAL WAY. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES009700609A ES2137105B1 (en) | 1997-03-20 | 1997-03-20 | PROCEDURE FOR THE OBTAINING OF N-MONOSUSCUTTED L-CYSTEINS BY ELECTROCHEMICAL WAY. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2137105A1 ES2137105A1 (en) | 1999-12-01 |
ES2137105B1 true ES2137105B1 (en) | 2000-08-16 |
Family
ID=8298692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES009700609A Expired - Lifetime ES2137105B1 (en) | 1997-03-20 | 1997-03-20 | PROCEDURE FOR THE OBTAINING OF N-MONOSUSCUTTED L-CYSTEINS BY ELECTROCHEMICAL WAY. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2137105B1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8601582D0 (en) * | 1986-01-23 | 1986-02-26 | Electricity Council | Production of l-cysteine |
EP0436055A1 (en) * | 1990-01-04 | 1991-07-10 | The Electrosynthesis Company, Inc. | High yield methods for electrochemical preparation of cysteine and analogues |
ES2032155A6 (en) * | 1990-04-06 | 1993-01-01 | Almu S A | Process for obtaining L-carboxymethyl-L-cysteine from L- cysteine by electrochemical methods |
ES2098191B1 (en) * | 1995-06-01 | 1997-12-16 | Dsm Deretil S A | PROCEDURE FOR OBTAINING THIOETER FOR PHARMACEUTICAL USE BY ELECTROCHEMICAL METHODS. |
ES2108654B1 (en) * | 1996-05-07 | 1998-07-01 | Univ Alicante | PROCEDURE FOR THE ELECTROCHEMICAL SYNTHESIS OF N-ACETILCISTEINA FROM CISTINA. |
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1997
- 1997-03-20 ES ES009700609A patent/ES2137105B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2137105A1 (en) | 1999-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19991201 Kind code of ref document: A1 Effective date: 19991201 |
|
FA2A | Application withdrawn |
Effective date: 20010109 |