WO2003082815A1 - Procede d'amelioration de la purete optique de 1-benzyl-3- aminopyrrolidine et sel utilise dans ce procede - Google Patents
Procede d'amelioration de la purete optique de 1-benzyl-3- aminopyrrolidine et sel utilise dans ce procede Download PDFInfo
- Publication number
- WO2003082815A1 WO2003082815A1 PCT/JP2003/003933 JP0303933W WO03082815A1 WO 2003082815 A1 WO2003082815 A1 WO 2003082815A1 JP 0303933 W JP0303933 W JP 0303933W WO 03082815 A1 WO03082815 A1 WO 03082815A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aminopyrrolidine
- benzyl
- optically active
- acid
- salt
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D207/10—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/14—Nitrogen atoms not forming part of a nitro radical
Definitions
- the present invention relates to a method for improving the optical purity of 1-benzyl-13-aminovirolidine, which is useful as an intermediate for synthesizing fine chemicals such as pharmaceuticals and agricultural chemicals.
- the present invention also relates to a novel salt of 1-benzyl-13-aminopyrrolidine used for improving optical purity.
- racemic 1-benzyl-1-monoaminopyrrolidine monohydrochloride tetrahedron letters 4 2 (2001) 56445
- an optically active 1-benzyl-3-aminopyrrolidine dihydrochloride Japanese Patent Application Laid-Open No. H02-2186864
- racemic 1-benzyl-3-aminopyrrolidine monofumarate is known, but there is no report that the optical purity was improved by forming these salts.
- an object of the present invention is to provide a method for improving the optical purity of low-purity 1-benzyl-3-aminopyrrolidine by a simple operation using an inexpensive reagent. is there.
- 1-benzyl-3-aminopyrrolidine was converted to a 1 mol to 1 mol salt with a non-optically active acid, and the salt was obtained as a crystal, which was inexpensive and simple. It was further discovered that 1-benzyl-3-aminopyrrolidine with improved optical purity could be obtained, and the present invention was completed.
- the present invention is characterized in that 1-benzyl-3-aminopyrrolidine is converted to a salt of 1 mol to 1 mol with a non-optically active acid, and the salt is obtained as crystals. —A method for improving the optical purity of aminopyrrolidine.
- HX represents hydrobromic acid, methanesulfonic acid, or acetic acid.
- the method for improving the optical purity of 1-benzyl-3-aminopyrrolidine according to the present invention comprises the steps of: 1-benzyl-3-aminopyrrolidine, in particular, its optically active compound is prepared by converting 1 mol to 1 mol of a salt with a non-optically active acid. And the salt is obtained as crystals.
- the low optical purity 1-benzyl-13-aminopyrrolidine that can be used in the present invention is, for example, as described in JP-A-2000-53642, as disclosed in A method in which a substituted butane derivative is converted into a pyrrolidine derivative in the presence of a primary amamine and then further reacted under pressure in the presence of an amine, and a method described in Japanese Patent Application Laid-Open No. 07-5061010.
- L-aspartic acid having a protected amino group can be reduced, reacted with thionyl halide or the like, further reacted with amine to form a pyrrolidine derivative, and then deprotected. .
- non-optically active acid used in the present invention examples include mineral acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, and sulfuric acid; organic sulfonic acids such as methanesulfonic acid; and carboxylic acids such as acetic acid. . These acids can be used alone or in combination of two or more. Of these acids, monovalent acids such as hydrochloric acid, hydrobromic acid, methanesulfonic acid, and acetic acid are easily formed because they easily form 1 mol to 1 mol salt with 1 benzyl 3-aminopyrrolidine.
- hydrobromic acid and methanesulfonic acid are more preferable from the viewpoints of crystal physical properties such as low hygroscopicity of crystals and good filterability.
- the amount of the non-optically active acid used is not particularly limited as long as it can be used to form a salt with 1 mol of 1-benzylpyrrolidine and 1 mol of 1 mol and precipitate as a crystal. However, it is possible to obtain an excellent effect of improving optical purity without forming 1 mol to 2 mol of salt with 1-benzyl-3-aminopyrrolidine. It is preferably 0.1 to 1 molar equivalent, more preferably 0.5 to 0.9 molar equivalent. In addition, by using an amount of 1 molar equivalent or less with respect to the optical isomer having a larger amount of 1-benzyl-3-aminopyrrolidine, the effect of improving the optical purity can be maximized.
- Solvents that can be used in the present invention include, for example, isopropanol, ethanol, methanol Alcohols such as alcohols; polyhydric alcohols such as ethylene glycol / propylene glycol and propylene dalicol; esters such as ethyl acetate and methyl acetate; hydrocarbons such as toluene and hexane; getyl ether and tetrahydrofuran.
- ethers such as methyl t-butyl ether; polyethers such as glyme; halogenated hydrocarbons such as methylene chloride; amides such as dimethylformamide; sulfoxides such as dimethyl sulfoxide; be able to.
- Preferred examples include esters such as ethyl acetate, hydrocarbons such as toluene and hexane, alcohols such as isopropanol and ethanol, and water. These solvents may be used alone or in combination of two or more.
- the type, amount and mixing ratio of these solvents may be selected according to the solubility of the salt to be obtained.
- examples of a method for crystallizing a salt of 1 mol of 1-benzyl-3-aminopyrrolidine with a non-optically active acid in a molar ratio of 1 mol include the following methods.
- 1 Benzyl 3-Aminopyrrolidine is mixed with an aqueous solution of a non-optically active acid, followed by concentration and crystallization by removing water.
- a solvent capable of azeotropic distillation with water eg, ethyl acetate, toluene, etc.
- water can be distilled off by an azeotropic effect.
- 1-Penzinolate 3-aminopyrrolidine and a non-optically active acid are mixed in a solvent, or after dissolving a salt of 1-benzoyl 3-amino-pyrrolidine and a non-optically active acid in a solvent.
- the above method may be appropriately selected depending on the combination of the type of salt and the solvent.
- the method of 1) when using an acid which can be easily used as an aqueous solution such as hydrochloric acid, hydrobromic acid, etc., the method of 1) can be easily used as an ordinary non-water-containing substance such as methanesulfonic acid and acetic acid.
- an acid it is preferable to select the method 2).
- the slurry solution of the salt obtained by the method of 1) or 2) is redissolved by the method of 3), then cooled and crystallized, etc., 1), 2), 3), 4) Crystallization can also be carried out by appropriately combining the above methods.
- Examples of the solvent used in the above 2) to 4) include the same solvents as those described above.
- Examples of the poor solvent used in 4) include toluene and hexane.
- Examples of the salt of 1-benzyl-3-aminopyrrolidine and the non-optically active acid in the above 3) to 4) include, for example, the method described in the present invention (the above 1) and 2), the above 3), Of 4), a method of mixing 1-benzyl-13-aminopyrrolidine and a non-optically active acid in a solvent) to obtain a salt of 1-benzyl-3-aminopyrrolidine and the non-optically active acid again. It may be used, or when 1-benzyl-3-aminopyrrolidine is synthesized, a salt of 1-benzyl-3_aminopyrrolidine and a non-optically active acid is produced by coexisting a non-optically active acid. You may use the one that was made.
- heating or the like can also be performed.
- the heating temperature in this case is not particularly limited, but may be appropriately set to a temperature at which 1-benzyl-3-aminopyrrolidine and the non-optically active acid are dissolved in the type of solvent or mixed solvent used.
- the crystallization temperature in the crystallization method of the above 1) to 4) may be appropriately selected depending on the type of salt and the type of solvent used, and is not particularly limited.
- the type of solvent or mixed solvent used is (1)
- the temperature may be lower than the temperature at which 3-aminopyrrolidine and the non-optically active acid dissolve, and may be set appropriately according to the target amount of precipitation.
- the crystals of the salt of 1 mol to 1 mol of 1-benzyl-13-aminopyrrolidine and the non-optically active acid precipitated by the above-mentioned crystallization method can be separated and obtained by a filtration operation or the like.
- the 1-to-1 mole salt of 1-benzyl-3-aminopyrrolidine and non-optically active acid which has been crystallized by the above method and has improved optical purity, has improved chemical purity as well as optical purity.
- Used as a raw material for fine chemicals such as pharmaceuticals and agricultural chemicals but by treating with a base such as an alkali metal hydroxide to release 1-benzyl-3-aminopyrrolidine, the optical purity can be increased by performing operations such as extraction, concentration, and distillation. It can also be obtained as 1-benzyl-3-aminopyrrolidine oil.
- HX represents hydrobromic acid, acid, or acetic acid
- a salt with hydrobromic acid, acid, or acetic acid, particularly an optically active form thereof, is prepared by the present inventors. It is a novel compound that has been found to be useful in a method for improving the optical purity of 1-benzyl-3-aminopyrrolidine.
- optical purity in the following examples was determined by the following method. 0.18% 1 Benzyl 3-aminopyrrolidine in acetonitrile solution 0.1 ml (When analyzing the salt of 1-benzyl-3-aminopyrrolidine with a non-optically active acid, dissolve the salt in water.
- GI TC Add 0.2 mL of 2,3,4,6-tetra-O-acetinol ⁇ -D-glucopyranosyl thiocyanate) in acetonitrile, react at room temperature for 10 minutes, and then add 0.2% ethanol. Amin's Acetonito 0.1 mL of the rill solution was added and left for 3 minutes, and then diluted with 1.0 mL of a 0.05% phosphoric acid aqueous solution to obtain a sample solution.
- the flow rate was 1. OmL / min, the column temperature was 30 ° C, and the detection was performed at UV 254 nm.
- the GITC derivative of (R) _1-benzyl-3-aminopyrrolidine is 25.5 minutes
- the derivative of (S) -l-benzyl-3-aminopyrrolidine GITC is 28.5 minutes. Was detected.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrrole Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/490,267 US7268236B2 (en) | 2002-03-29 | 2003-03-28 | Method of heightening optical purity of 1-benzyl-3-aminopyrrolidine and salt for used therein |
JP2003580283A JP4481659B2 (ja) | 2002-03-29 | 2003-03-28 | 1−ベンジル−3−アミノピロリジンの光学純度向上方法及びそれに用いられる塩 |
DE60333741T DE60333741D1 (de) | 2002-03-29 | 2003-03-28 | Verfahren zum erhöhen der optischen reinheit von 1-benzyl-3-aminopyrrolidin und salz, das sich dabei verwenden lässt |
EP03715573A EP1491530B1 (en) | 2002-03-29 | 2003-03-28 | Method of heightening optical purity of 1-benzyl-3-aminopyrrolidine and salt for use therein |
US11/882,653 US20080255371A1 (en) | 2002-03-29 | 2007-08-03 | Method for improving optical purity of 1-benzyl-3-aminopyrolidine and salt for use therein |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-096404 | 2002-03-29 | ||
JP2002096404 | 2002-03-29 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/882,653 Division US20080255371A1 (en) | 2002-03-29 | 2007-08-03 | Method for improving optical purity of 1-benzyl-3-aminopyrolidine and salt for use therein |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003082815A1 true WO2003082815A1 (fr) | 2003-10-09 |
Family
ID=28671831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/003933 WO2003082815A1 (fr) | 2002-03-29 | 2003-03-28 | Procede d'amelioration de la purete optique de 1-benzyl-3- aminopyrrolidine et sel utilise dans ce procede |
Country Status (5)
Country | Link |
---|---|
US (2) | US7268236B2 (ja) |
EP (1) | EP1491530B1 (ja) |
JP (1) | JP4481659B2 (ja) |
DE (1) | DE60333741D1 (ja) |
WO (1) | WO2003082815A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010079605A1 (ja) * | 2009-01-09 | 2010-07-15 | 東レ・ファインケミカル株式会社 | 高純度1-ベンジル-3-アミノピロリジンの製造方法 |
US7973176B2 (en) | 2005-08-23 | 2011-07-05 | Kaneka Corporation | Process for production of aralkyloxypyrrolidine derivative |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4481659B2 (ja) * | 2002-03-29 | 2010-06-16 | 株式会社カネカ | 1−ベンジル−3−アミノピロリジンの光学純度向上方法及びそれに用いられる塩 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06340599A (ja) * | 1993-06-02 | 1994-12-13 | Tanabe Seiyaku Co Ltd | 光学活性2−アミノ酪酸の製法 |
JPH09216866A (ja) * | 1996-02-09 | 1997-08-19 | Koei Chem Co Ltd | 光学活性n−ベンジル−3−アミノピロリジンの製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3733289A1 (de) * | 1987-10-02 | 1989-04-20 | Bayer Ag | Verfahren zur herstellung von 3-amino-1-benzyl-pyrrolidinen |
JP2995704B2 (ja) * | 1989-02-17 | 1999-12-27 | 東京化成工業株式会社 | 光学活性な1h−3−アミノピロリジン化合物の製造法 |
US5696273A (en) * | 1991-02-28 | 1997-12-09 | Parfums Christian Dior | Method for synthesizing cucurbitine |
US5177217A (en) | 1992-04-27 | 1993-01-05 | Warner-Lambert Company | Process for the manufacture of (S)-3-amino-1-substituted-pyrrolidines |
JP3716376B2 (ja) | 1995-10-26 | 2005-11-16 | 東レ・ファインケミカル株式会社 | 光学分割剤およびそれを用いた光学活性3−アミノピロリジン誘導体の製造法 |
JPH09176115A (ja) | 1995-12-28 | 1997-07-08 | Koei Chem Co Ltd | 光学活性なn−ベンジル−3−アミノピロリジンの製造方法 |
US6423689B1 (en) * | 1997-12-22 | 2002-07-23 | Warner-Lambert Company | Peptidyl calcium channel blockers |
US5977381A (en) | 1998-01-12 | 1999-11-02 | Hoffmann-La Roche Inc. | Process for making 3-amino-pyrolidine derivatives |
JP4481659B2 (ja) * | 2002-03-29 | 2010-06-16 | 株式会社カネカ | 1−ベンジル−3−アミノピロリジンの光学純度向上方法及びそれに用いられる塩 |
-
2003
- 2003-03-28 JP JP2003580283A patent/JP4481659B2/ja not_active Expired - Lifetime
- 2003-03-28 DE DE60333741T patent/DE60333741D1/de not_active Expired - Lifetime
- 2003-03-28 US US10/490,267 patent/US7268236B2/en not_active Expired - Fee Related
- 2003-03-28 EP EP03715573A patent/EP1491530B1/en not_active Expired - Lifetime
- 2003-03-28 WO PCT/JP2003/003933 patent/WO2003082815A1/ja active Application Filing
-
2007
- 2007-08-03 US US11/882,653 patent/US20080255371A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06340599A (ja) * | 1993-06-02 | 1994-12-13 | Tanabe Seiyaku Co Ltd | 光学活性2−アミノ酪酸の製法 |
JPH09216866A (ja) * | 1996-02-09 | 1997-08-19 | Koei Chem Co Ltd | 光学活性n−ベンジル−3−アミノピロリジンの製造方法 |
Non-Patent Citations (2)
Title |
---|
See also references of EP1491530A4 * |
TADASCI SHIRAIWA ET AL.: "Synthesis of optically active 1,4-thiazane-3-carboxylic acid via optical resolution by preferential crystallization of (RS)-2-amino-3-((2-chloroethyl(sulfanyl)propanoic acid hydrochloride", BIOSCIENCE, BIOTECHNOLOGY AND BIOCHEMISTRY, vol. 62, no. 12, 1998, pages 2382 - 2387, XP002969515 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7973176B2 (en) | 2005-08-23 | 2011-07-05 | Kaneka Corporation | Process for production of aralkyloxypyrrolidine derivative |
US8247578B2 (en) | 2005-08-23 | 2012-08-21 | Kaneka Corporation | Process for production of aralkyloxypyrrolidine derivative |
WO2010079605A1 (ja) * | 2009-01-09 | 2010-07-15 | 東レ・ファインケミカル株式会社 | 高純度1-ベンジル-3-アミノピロリジンの製造方法 |
JP5397706B2 (ja) * | 2009-01-09 | 2014-01-22 | 東レ・ファインケミカル株式会社 | 高純度1−ベンジル−3−アミノピロリジンの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
DE60333741D1 (de) | 2010-09-23 |
EP1491530B1 (en) | 2010-08-11 |
US20080255371A1 (en) | 2008-10-16 |
US20040249169A1 (en) | 2004-12-09 |
JPWO2003082815A1 (ja) | 2005-08-04 |
JP4481659B2 (ja) | 2010-06-16 |
EP1491530A1 (en) | 2004-12-29 |
EP1491530A4 (en) | 2005-12-28 |
US7268236B2 (en) | 2007-09-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105524046B (zh) | 制备吡咯化合物的方法 | |
TW201708231A (zh) | 7H-吡咯并[2,3-d]嘧啶衍生物的製造方法及其中間物 | |
TW200808770A (en) | Novel processes for the preparation of DPP IV inhibitors | |
JP5696035B2 (ja) | アルガトロバン一水和物の多形体及びその合成方法 | |
WO2003082815A1 (fr) | Procede d'amelioration de la purete optique de 1-benzyl-3- aminopyrrolidine et sel utilise dans ce procede | |
WO2021250067A2 (en) | A process for the purification of (r)-2-amino-3-phenylpropyl carbamate | |
US20080214837A1 (en) | Synthetic Method of Optically Pure (S)-3-Hydroxypyrrolidine | |
JP4922152B2 (ja) | フッ素化プロリン誘導体の製造方法 | |
ES2346986T3 (es) | Proceso de sintesis diastereoselectiva con 6-bromo-4-(3-clorofenil)-2-methoxi-quinolina. | |
EP2332908A1 (en) | Method for purifying aminoacetylpyrrolidinecarbonitrile derivative and salt thereof | |
TW201127842A (en) | Process for the preparation and purification of topiramate | |
US7943784B2 (en) | Process for the preparation of almotriptan | |
TW202241921A (zh) | 將胺基酸負載至固相合成用樹脂的方法 | |
JP4721339B2 (ja) | N−アルコキシカルボニルアミノ酸の製造方法 | |
TW200403222A (en) | Process for the preparation of amino-pyrrolidine derivatives | |
JP5654738B2 (ja) | エポキシトリアゾール誘導体の製造法 | |
JP2006022045A (ja) | 光学活性1−t−ブトキシカルボニル−3−アミノピロリジン塩の単離精製方法 | |
JP2007015978A (ja) | アムロジピンベンゼンスルホン酸塩の製造方法 | |
WO2021224942A1 (en) | Polymorphic forms of amlodipine benzoate and process for the preparation thereof | |
CA3141698A1 (en) | Selective histamine h3 antagonist acid addition salts and process for the preparation thereof | |
JP2007297306A (ja) | 光学活性3−(1−ピロリジニル)ピロリジンの製造法 | |
CN110885315A (zh) | 左西孟旦药重要中间体的制备方法 | |
JP2009126785A (ja) | 2−ヨード−3,4−ジメトキシベンゾニトリルの製造方法 | |
JPH11199562A (ja) | 1−(3−アルカノイルチオ−2−アルキルプロパノイル)−プロリルフェニルアラニンの製造方法 | |
WO2014019179A1 (zh) | 特拉匹韦及其中间体的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 10490267 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003715573 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003580283 Country of ref document: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 2003715573 Country of ref document: EP |