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ES2035767B1 - PROCEDURE FOR OBTAINING 2-HYDROXIMETIL-3,5-DIMETILPIRIDINAS 4-SUBSTITUTED. - Google Patents

PROCEDURE FOR OBTAINING 2-HYDROXIMETIL-3,5-DIMETILPIRIDINAS 4-SUBSTITUTED.

Info

Publication number
ES2035767B1
ES2035767B1 ES9100890A ES9100890A ES2035767B1 ES 2035767 B1 ES2035767 B1 ES 2035767B1 ES 9100890 A ES9100890 A ES 9100890A ES 9100890 A ES9100890 A ES 9100890A ES 2035767 B1 ES2035767 B1 ES 2035767B1
Authority
ES
Spain
Prior art keywords
formula
obtaining
hydroximetil
procedure
dimetil
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 - Fee Related
Application number
ES9100890A
Other languages
Spanish (es)
Other versions
ES2035767A1 (en
Inventor
Coll Alberto Palomo
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.)
Centro Genesis para la Investigacion SL
Original Assignee
Centro Genesis para la Investigacion SL
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 Centro Genesis para la Investigacion SL filed Critical Centro Genesis para la Investigacion SL
Priority to ES9100890A priority Critical patent/ES2035767B1/en
Publication of ES2035767A1 publication Critical patent/ES2035767A1/en
Application granted granted Critical
Publication of ES2035767B1 publication Critical patent/ES2035767B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Pyridine Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROCEDIMIENTO DE OBTENCION DE 2-HIDROXIMETIL-3,5-DIMETIL-4-R-PIRIDINA, DE FORMULA I FORMULA DONDE R ES UN GRUPO NITRO O METOXILO, QUE COMPRENDE: A) DESOXIGENACION E INTRODUCCION DE UN GRUPO CIANO EN POSICION 2 DEL N-OXIDO DE 3,5-DIMETIL-4-R-PIRIDINA, DE FORMULA III, OBTENIENDO EL 3,5-DIMETIL-4-R-PIRIDIN-2-CARBONITRILO; B) HIDROLISIS DEL GRUPO CIANO DE ESTE ULTIMO COMPUESTO, RINDIENDO EL ACIDO 3,5-DIMETIL-4-R-PIRIDIN-2-CARBOXILICO, Y C) REDUCCION DEL RADICAL CARBOXILO DEL ANTERIOR ACIDO, RINDIENDO EL COMPUESTO DE FORMULA I. EL COMPUESTO DE FORMULA I ES UN INTERMEDIO DE LA SINTESIS DEL OMEPRAZOL, EL CUAL ES UN MEDICAMENTO MUY EFICAZ.PROCEDURE FOR OBTAINING 2-HYDROXIMETIL-3,5-DIMETIL-4-R-PIRIDINA, OF FORMULA I FORMULA WHERE R IS A NITRO OR METOXYL GROUP, WHICH INCLUDES: A) DEOXYGENATION AND INTRODUCTION OF A CYAN GROUP IN POSITION 2 OF N -OXIDE 3,5-DIMETIL-4-R-PIRIDINA, OF FORMULA III, OBTAINING 3,5-DIMETIL-4-R-PIRIDIN-2-CARBONITRILO; B) HYDROLYSIS OF THE CIANO GROUP OF THIS LAST COMPOUND, YIELDING THE 3,5-DIMETHYL-4-R-PIRIDIN-2-CARBOXYLIC ACID, AND C) REDUCTION OF THE PREVIOUS ACID RADICAL CARBOXYL, DELIVERING THE COMPOUND OF FORMULA I. FORMULA I IS AN INTERMEDIATE OF THE SYNTHESIS OF OMEPRAZOLE, WHICH IS A VERY EFFECTIVE MEDICINE.

ES9100890A 1991-04-05 1991-04-05 PROCEDURE FOR OBTAINING 2-HYDROXIMETIL-3,5-DIMETILPIRIDINAS 4-SUBSTITUTED. Expired - Fee Related ES2035767B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9100890A ES2035767B1 (en) 1991-04-05 1991-04-05 PROCEDURE FOR OBTAINING 2-HYDROXIMETIL-3,5-DIMETILPIRIDINAS 4-SUBSTITUTED.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9100890A ES2035767B1 (en) 1991-04-05 1991-04-05 PROCEDURE FOR OBTAINING 2-HYDROXIMETIL-3,5-DIMETILPIRIDINAS 4-SUBSTITUTED.

Publications (2)

Publication Number Publication Date
ES2035767A1 ES2035767A1 (en) 1993-04-16
ES2035767B1 true ES2035767B1 (en) 1994-02-01

Family

ID=8271987

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9100890A Expired - Fee Related ES2035767B1 (en) 1991-04-05 1991-04-05 PROCEDURE FOR OBTAINING 2-HYDROXIMETIL-3,5-DIMETILPIRIDINAS 4-SUBSTITUTED.

Country Status (1)

Country Link
ES (1) ES2035767B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999010326A1 (en) * 1997-08-23 1999-03-04 Seal Sands Chemicals Limited Preparation of pyridine derivatives

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2097089B1 (en) * 1995-02-01 1997-12-16 Esteve Quimica Sa PROCEDURE FOR THE PREPARATION OF 2-HYDROXIMETIL-3,5-DIMETIL-4-METOXIPIRIDINA.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391693B (en) * 1988-11-15 1990-11-12 Cl Pharma METHOD FOR PRODUCING 3-5-DIMETHYL-4METHOXYPYRIDINE DERIVATIVES AND NEW INTERMEDIATE PRODUCT THEREFOR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999010326A1 (en) * 1997-08-23 1999-03-04 Seal Sands Chemicals Limited Preparation of pyridine derivatives

Also Published As

Publication number Publication date
ES2035767A1 (en) 1993-04-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000201