WO2011099834A3 - Procedimiento para la purificación de diacereina cruda vía sal de potasio/dimetil formamida - Google Patents
Procedimiento para la purificación de diacereina cruda vía sal de potasio/dimetil formamida Download PDFInfo
- Publication number
- WO2011099834A3 WO2011099834A3 PCT/MX2010/000013 MX2010000013W WO2011099834A3 WO 2011099834 A3 WO2011099834 A3 WO 2011099834A3 MX 2010000013 W MX2010000013 W MX 2010000013W WO 2011099834 A3 WO2011099834 A3 WO 2011099834A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dimethylformamide
- purification
- procedure
- potassium salt
- diacerein
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/60—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicines Containing Plant Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
La presente invención se refiere a un procedimiento para la purificación de Diacereina cruda con alto contenido de Aloe-emodina, mediante la obtención de la sal de potasio de diacereina, la cual es purificada con dimetilformamida y su posterior conversión a diacereina ácida, eliminando así prácticamente la totalidad de las impurezas, entre las cuales se encuentran Aloe-emodina, monoacetilrehinas I, Monoacetilrehinas II, Rheina y cromo.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/MX2010/000013 WO2011099834A2 (es) | 2010-02-15 | 2010-02-15 | Procedimiento para la purificación de diacereina cruda vía sal de potasio/dimetil formamida |
MX2012009147A MX2012009147A (es) | 2010-02-15 | 2012-08-08 | Procedimiento para la purificacion de diacerina cruda via sal de potasio/dimetil formamida. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/MX2010/000013 WO2011099834A2 (es) | 2010-02-15 | 2010-02-15 | Procedimiento para la purificación de diacereina cruda vía sal de potasio/dimetil formamida |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011099834A2 WO2011099834A2 (es) | 2011-08-18 |
WO2011099834A3 true WO2011099834A3 (es) | 2013-01-03 |
Family
ID=44368347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/MX2010/000013 WO2011099834A2 (es) | 2010-02-15 | 2010-02-15 | Procedimiento para la purificación de diacereina cruda vía sal de potasio/dimetil formamida |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2011099834A2 (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104262147A (zh) * | 2014-08-25 | 2015-01-07 | 台州海辰药业有限公司 | 4,5-二乙酰氧-9,10-二氧-9,10-二氢-2-蒽羧酸的晶型及其制备方法 |
CN110105202B (zh) * | 2019-05-16 | 2021-09-03 | 北京中医药大学 | 一种高效、快速分离制备大黄酸衍生物的方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5756782A (en) * | 1995-02-07 | 1998-05-26 | Steba Beheer B.V. | Method for purifying diacetylrhein |
WO1998056750A1 (en) * | 1997-06-11 | 1998-12-17 | Synteco S.R.L. | A process for the preparation of diacerein |
US6624192B1 (en) * | 1991-06-25 | 2003-09-23 | Madaus Ag | Process for production of diacetylrhein |
WO2010000879A2 (en) * | 2008-12-09 | 2010-01-07 | Evultis Sa | Process for the preparation of non-genotoxic diacetylrhein (diacerein) and formulations comprising non-genotoxic diacetylrhein |
-
2010
- 2010-02-15 WO PCT/MX2010/000013 patent/WO2011099834A2/es active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6624192B1 (en) * | 1991-06-25 | 2003-09-23 | Madaus Ag | Process for production of diacetylrhein |
US5756782A (en) * | 1995-02-07 | 1998-05-26 | Steba Beheer B.V. | Method for purifying diacetylrhein |
WO1998056750A1 (en) * | 1997-06-11 | 1998-12-17 | Synteco S.R.L. | A process for the preparation of diacerein |
WO2010000879A2 (en) * | 2008-12-09 | 2010-01-07 | Evultis Sa | Process for the preparation of non-genotoxic diacetylrhein (diacerein) and formulations comprising non-genotoxic diacetylrhein |
Also Published As
Publication number | Publication date |
---|---|
WO2011099834A2 (es) | 2011-08-18 |
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