WO2011080749A1 - Process for purification of ziprasidone - Google Patents
Process for purification of ziprasidone Download PDFInfo
- Publication number
- WO2011080749A1 WO2011080749A1 PCT/IN2009/000748 IN2009000748W WO2011080749A1 WO 2011080749 A1 WO2011080749 A1 WO 2011080749A1 IN 2009000748 W IN2009000748 W IN 2009000748W WO 2011080749 A1 WO2011080749 A1 WO 2011080749A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ziprasidone
- acid
- process according
- organic acid
- reflux
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
- C07D417/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
Definitions
- the present invention relates to a process for the preparation of pure ziprasidone.
- 4,831,031, ziprasidone can be prepared by reacting 1-(1,2- benzisothiazol-3-yl)piperazine and 5-(2-chloroethyl)-6-chloro-oxindole in a polar solvent, such as a lower alcohol, dimethylformamide or methylisobutyl ketone in the presence of a weak base.
- a polar solvent such as a lower alcohol, dimethylformamide or methylisobutyl ketone
- U.S. Patent No. 5,206,366 and U.S. Patent No. 5,338,846 are described a process for preparing ziprasidone by reacting l-(l,2-benzisothiazol-3- yl)piperazine with 5-(2-chloroethyl)-6-chloro-oxindole in water with a neutralizing agent such as sodium carbonate under reflux.
- U.S. Patent No. 5,359,068 disclosed a process for the preparation of ziprasidone. According to J, Med. Chem. 1996, 39, 143 - 148, ziprasidone is prepared by reacting l -(l,2-benzisothiazol-3-yl)piperazine with 5-(2-bromoethyl)-6-chloro- oxindole in isoamyl alcohol solvent in the presence of sodium carbonate.
- U.S. Patent Application No. 2008/0214816 described a process for the preparation ziprasidone maleate, acetate or hydrochloride can be prepared by treating solution or suspension of ziprasidone base with the maleic acid or acetic acid or hydrochloric acid. Process of ziprasidone tosylate was mentioned, but preparation of tosylate is not specifically described.
- U.S. Patent Application No. 2009/0163513 disclosed a process for the preparation of ziprasidone by reacting silylated l -(l,2-benzisothiazol-3- yl)piperazine with 5 ⁇ (2-chloroethyl)-6-chloro-oxindole in water, followed by neutralization under reflux.
- An object of the present invention is to provide a process for the preparation of pure ziprasidone.
- step (b) adding an organic acid to the solution obtained in step (a) and isolating ziprasidone organic acid salt from the solution as solid;
- step (b) mixing ziprasidone organic acid salt obtained in step (b) with aqueous ammonia;
- step (c) heating the contents obtained in step (c) at 60 to 80°C for at least 15 minutes;
- step (e) refluxing ziprasidone obtained in step (e) with tertrahydrofuran; and g) isolating pure ziprasidone.
- pure ziprasidone refers to ziprasidone having the HPLC purity is more than 99.5%. Preferable HPLC purity is 99.8%.
- the alcohol solvent used in step (a) is a solvent or mixture of solvents selected from methanol, ethanol, n-propyl alcohol, isopropyl alcohol, isobutanol, n-butanol and tertiary butanol.
- Preferable alcohol solvent is methanol.
- the organic acid used in step (b) may preferably be selected from p- toluenesulfonic acid, acetic acid, methane sulfonic acid, ethane sulfonic acid, tartaric acid and benzenesulfonic acid. More preferable organic acid is p- toluenesulfonic acid.
- step (b) may be carried out at reflux.
- the heating in step (d) may preferably carried out at 60 to 70 C for 30 minutes.
- the precipitated solid may be isolated from the contents by methods such as filtration or centrifugation. If required the isolation of the pure ziprasidone may be performed by the methods known in the art such as by cooling, using an antisolvent, by partial evaporation or a combination thereof followed by filtration or a centrifugation.
- the pure ziprasidone is converted to ziprasidone pharmaceutical acceptable salts such as ziprasidone hydrochloride.
- the solid obtained was dissolved in methanol (700 ml) and heated to reflux for 1 hour, filtered. The solid obtained was washed with methanol (100 ml) and dried at 50 to 55°C for 5 hours to obtain 70 gm of ziprasidone (HPLC Purity: 98%).
- Ziprasidone (100 gm) as obtained in preparative example was dissolved in methanol (3000 ml) and heated to reflux, and then added p-toluenesulfonic acid (150 gm) at reflux. The reaction mixture was maintained for 30 minutes at reflux, filtered, dried at 65°C to obtain ziprasidone tosylate.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The present invention relates to a process for the preparation of pure ziprasidone. Thus, for example, ziprasidone tosylate was added to water and aqueous ammonia at room temperature, the contents were heated to 65 °C and maintained for 30 minutes, filtered, washed with water to obtain a wet solid, tetrahydrofuran was added to wet solid and maintained at reflux for 30 minutes. The separated solid was filtered and dried at 65 °C to obtain pure ziprasidone.
Description
PROCESS FOR PURIFICATION OF ZIPRASIDONE
Field of the Invention
The present invention relates to a process for the preparation of pure ziprasidone.
Background of the Invention
Ziprasidone of formula (I) :
or 5 - [2- [4-( 1 ,2-Benzisothiazol-3 -yl)- 1 -piperazinyl] ethyl] -6-chloro- 1 ,3 -dihydro- 2H-indol-2-one and its salts are antipsychotic agents. Ziprasidone hydrochloride and related compounds and their therapeutic uses were disclosed in U.S. Patent No. 4,831,031, which are hereby incorporated by reference. According to U.S. Patent No. 4,831,031, ziprasidone can be prepared by reacting 1-(1,2- benzisothiazol-3-yl)piperazine and 5-(2-chloroethyl)-6-chloro-oxindole in a polar solvent, such as a lower alcohol, dimethylformamide or methylisobutyl ketone in the presence of a weak base.
U.S. Patent No. 5,206,366 and U.S. Patent No. 5,338,846 are described a process for preparing ziprasidone by reacting l-(l,2-benzisothiazol-3- yl)piperazine with 5-(2-chloroethyl)-6-chloro-oxindole in water with a neutralizing agent such as sodium carbonate under reflux.
U.S. Patent No. 5,359,068 disclosed a process for the preparation of ziprasidone.
According to J, Med. Chem. 1996, 39, 143 - 148, ziprasidone is prepared by reacting l -(l,2-benzisothiazol-3-yl)piperazine with 5-(2-bromoethyl)-6-chloro- oxindole in isoamyl alcohol solvent in the presence of sodium carbonate.
U.S. Patent Application No. 2008/0214816 described a process for the preparation ziprasidone maleate, acetate or hydrochloride can be prepared by treating solution or suspension of ziprasidone base with the maleic acid or acetic acid or hydrochloric acid. Process of ziprasidone tosylate was mentioned, but preparation of tosylate is not specifically described.
U.S. Patent Application No. 2009/0163513 disclosed a process for the preparation of ziprasidone by reacting silylated l -(l,2-benzisothiazol-3- yl)piperazine with 5~(2-chloroethyl)-6-chloro-oxindole in water, followed by neutralization under reflux.
Despite various processes disclosed in the prior art for the preparation of ziprasidone and salts thereof, still there is a need for producing ziprasidone and pharmaceutically acceptable acid addition salts of ziprasidone in high purity.
An object of the present invention is to provide a process for the preparation of pure ziprasidone.
Detailed Description of the Invention
In accordance with the present invention there is provided a process for the preparation of pure ziprasidone, which comprises:
a) providing a solution of ziprasidone in alcohol solvent at reflux;
b) adding an organic acid to the solution obtained in step (a) and isolating ziprasidone organic acid salt from the solution as solid;
c) mixing ziprasidone organic acid salt obtained in step (b) with aqueous ammonia;
d) heating the contents obtained in step (c) at 60 to 80°C for at least 15 minutes;
e) isolating ziprasidone from the contents as solid;
f) refluxing ziprasidone obtained in step (e) with tertrahydrofuran; and g) isolating pure ziprasidone.
The term "pure ziprasidone" refers to ziprasidone having the HPLC purity is more than 99.5%. Preferable HPLC purity is 99.8%.
The alcohol solvent used in step (a) is a solvent or mixture of solvents selected from methanol, ethanol, n-propyl alcohol, isopropyl alcohol, isobutanol, n-butanol and tertiary butanol. Preferable alcohol solvent is methanol.
The organic acid used in step (b) may preferably be selected from p- toluenesulfonic acid, acetic acid, methane sulfonic acid, ethane sulfonic acid, tartaric acid and benzenesulfonic acid. More preferable organic acid is p- toluenesulfonic acid.
The addition and isolation in step (b) may be carried out at reflux.
The heating in step (d) may preferably carried out at 60 to 70 C for 30 minutes.
The precipitated solid may be isolated from the contents by methods such as filtration or centrifugation. If required the isolation of the pure ziprasidone may be performed by the methods known in the art such as by cooling, using an antisolvent, by partial evaporation or a combination thereof followed by filtration or a centrifugation.
Optionally, the pure ziprasidone is converted to ziprasidone pharmaceutical acceptable salts such as ziprasidone hydrochloride.
The invention will now be further described by the following examples, which are illustrative rather than limiting.
Preparative example
Preparation of Ziprasidone
Sodium carbonate (50 gm) was dissolved in water (1225 ml) at 25 to 30°C and then added l -(l ,2-benzisothiazol-3-yl)piperazine (47 gm). The reaction mass was stirred for 10 minutes and 6-chloro-5-(2-chloroethyl)oxindole (50 gm) was added to reaction mass at 25 to 30°C. To the reaction mass was added sodium iodide (1 gm) and tetrabutylammonium chloride (1 gm) at 25 to 30°C, and then heated to reflux for 9 hours. The reaction mass was poured into ice and added
water (1000 ml), filtered and washed with water (200 ml). The solid obtained was dissolved in methanol (700 ml) and heated to reflux for 1 hour, filtered. The solid obtained was washed with methanol (100 ml) and dried at 50 to 55°C for 5 hours to obtain 70 gm of ziprasidone (HPLC Purity: 98%).
Examples
Example 1 :
Preparation of pure ziprasidone
Ziprasidone (100 gm) as obtained in preparative example was dissolved in methanol (3000 ml) and heated to reflux, and then added p-toluenesulfonic acid (150 gm) at reflux. The reaction mixture was maintained for 30 minutes at reflux, filtered, dried at 65°C to obtain ziprasidone tosylate.
Ziprasidone tosylate was added to water (1200 ml) and aqueous ammonia (15%, 150 ml) at room temperature. The contents were heated to 65°C and maintained for 30 minutes, filtered. The solid obtained was washed with water to obtain a wet solid.
To the above wet solid was added tetrahydrofuran (100 ml) and heated to reflux, maintained for 30 minutes at reflux. The separated solid was filtered and dried at 65°C to obtain 65 gm of pure ziprasidone (HPLC Purity: 99.8%).
Example 2:
Preparation of ziprasidone hydrochloride
Pure ziprasidone (65 gm) as obtained in example 1 was added methylene dichloride (100 ml) at room temperature. The contents were cooled to 0°C and stirred for 35 minutes. Isopropylalcohol hydrochloride (100 ml) was added to reaction mass at 0°C and maintained for 10 minutes, filtered. The solid obtained was washed with methylene dichloride and dried at 65°C to obtain 60 gm of ziprasidone hydrochloride.
Claims
1. A process for the preparation of pure ziprasidone, which comprises:
a. providing a solution of ziprasidone in alcohol solvent at reflux; b. adding an organic acid to the solution obtained in step (a) and isolating ziprasidone organic acid salt from the solution as solid; c. mixing ziprasidone organic acid salt obtained in step (b) with aqueous ammonia;
d. heating the contents obtained in step (c) at 60 to 80°C for at least 15 minutes;
e. isolating ziprasidone from the contents as solid;
f. refluxing ziprasidone obtained in step (e) with tertrahydrofuran; and g. isolating pure ziprasidone.
2. The process according to claim 1, wherein the alcohol solvent used in step (a) is a solvent or mixture of solvents selected from methanol, ethanol, n-propyl alcohol, isopropyl alcohol, isobutanol, n-butanol and tertiary butanol.
3. The process according to claim 2, wherein the alcohol solvent is methanol.
4. The process according to claim 1, wherein the organic acid used in step (b) is selected from p-toluenesulfonic acid, acetic acid, methane sulfonic acid, ethane sulfonic acid, tartaric acid and benzenesulfonic acid.
5. The process according to claim 4, wherein the organic acid is p- toluenesulfonic acid.
6. The process according to claim 1, wherein the addition and isolation in step (b) is carried out at reflux.
7. The process according to claim 1, wherein the heating in step (d) is carried out at 60 to 70°C for 30 minutes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IN2009/000748 WO2011080749A1 (en) | 2009-12-29 | 2009-12-29 | Process for purification of ziprasidone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IN2009/000748 WO2011080749A1 (en) | 2009-12-29 | 2009-12-29 | Process for purification of ziprasidone |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011080749A1 true WO2011080749A1 (en) | 2011-07-07 |
Family
ID=44226223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2009/000748 WO2011080749A1 (en) | 2009-12-29 | 2009-12-29 | Process for purification of ziprasidone |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2011080749A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015049698A3 (en) * | 2013-10-04 | 2015-08-13 | Hetero Research Foundation | Process for regorafenib |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0811386A2 (en) * | 1996-05-07 | 1997-12-10 | Pfizer Inc. | Method of selecting a salt for making an inclusion complex |
WO2006034965A1 (en) * | 2004-09-29 | 2006-04-06 | Medichem, S.A. | Process for the purification of ziprasidone |
-
2009
- 2009-12-29 WO PCT/IN2009/000748 patent/WO2011080749A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0811386A2 (en) * | 1996-05-07 | 1997-12-10 | Pfizer Inc. | Method of selecting a salt for making an inclusion complex |
WO2006034965A1 (en) * | 2004-09-29 | 2006-04-06 | Medichem, S.A. | Process for the purification of ziprasidone |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015049698A3 (en) * | 2013-10-04 | 2015-08-13 | Hetero Research Foundation | Process for regorafenib |
US9518020B2 (en) | 2013-10-04 | 2016-12-13 | Hetero Research Foundation | Process for Regorafenib |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2905973T3 (en) | Process for the preparation of 5-chloro-N2-(2-isopropoxy-5-methyl-4-piperidin-4-yl-phenyl)-N4-[2-(propane-2-sulfonyl)-phenyl]-pyrimidine dihydrochloride -2,4-diamine | |
AU2018236805C1 (en) | Glutarimide derivatives, use thereof, pharmaceutical composition based thereon and methods for producing glutarimide derivatives | |
KR100908155B1 (en) | Tetrahydronaphthyridine derivatives useful as histamine H3 receptor ligands | |
AU2007305399B2 (en) | JAK-2 Modulators and Methods of Use | |
IE900069L (en) | 2-aminopyrimidinone derivatives | |
JP2005527463A (en) | 3-Arylsulfonyl-7-piperazinyl-indole, -benzofuran and -benzothiophene with 5-HT6 receptor affinity for treating CNS diseases | |
WO2012068441A2 (en) | Intedanib salts and solid state forms thereof | |
AU745051B2 (en) | Benzothiadiazoles and derivatives | |
US20180312494A1 (en) | Polymorphic forms of afatinib free base and afatinib dimaleate | |
WO2012015999A2 (en) | Process for the preparation of imatinib mesylate | |
WO2015068175A2 (en) | An improved process for the preparation of pazopanib or a pharmaceutically acceptable salt thereof | |
JP2010535187A (en) | New method | |
JP2000511534A (en) | Benzoxazinone dopamine D4 receptor antagonist | |
CN1034171C (en) | 4-pyrimdinone derivatives, their preparation and their application in therapy | |
US20050143396A1 (en) | Novel crystalline forms of ziprasidone hydrochloride | |
WO2018185711A1 (en) | Solvates of eluxadoline | |
WO2012004801A1 (en) | Process for imatinib mesylate | |
WO2011080749A1 (en) | Process for purification of ziprasidone | |
US8178674B2 (en) | Process for the preparation of ziprasidone | |
CN105884747B (en) | Preparation method for preparing Bruton's Tyrosine Kinase (BTK) kinase inhibitor | |
JP5315337B2 (en) | Crystalline form of topotecan hydrochloride and method for producing the same | |
Hu et al. | Two-stage one-pot synthetic strategy for the key triazone-triazole intermediate of ensitrelvir (S-217622), an oral clinical candidate for treating COVID-19 | |
HU230144B1 (en) | Process for producing quetiapine | |
CA2581322A1 (en) | Process for preparing ziprasidone | |
CN111777613A (en) | Preparation and application of pyrimidinedione indole and pyridone indole compounds |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09852774 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09852774 Country of ref document: EP Kind code of ref document: A1 |