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.

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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
Authority
ES
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
Application number
ES009700609A
Other languages
Spanish (es)
Other versions
ES2137105A1 (en
Inventor
Bayo Antonio Pallares
Lopez Ricardo Man Santiandreum
Tarifa Jose Manzano
Almaraz Pablo Garcia
Morales Manuel Esteban
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DSM DERETIL SA
Deretil SA
Original Assignee
DSM DERETIL SA
DSM Deretil SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DSM DERETIL SA, DSM Deretil SA filed Critical DSM DERETIL SA
Priority to ES009700609A priority Critical patent/ES2137105B1/en
Publication of ES2137105A1 publication Critical patent/ES2137105A1/en
Application granted granted Critical
Publication of ES2137105B1 publication Critical patent/ES2137105B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

ES009700609A 1997-03-20 1997-03-20 PROCEDURE FOR THE OBTAINING OF N-MONOSUSCUTTED L-CYSTEINS BY ELECTROCHEMICAL WAY. Expired - Lifetime ES2137105B1 (en)

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)

* Cited by examiner, † Cited by third party
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.

Also Published As

Publication number Publication date
ES2137105A1 (en) 1999-12-01

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