CA2378869C - Method for making pure stereoisomers of tetrahydrofolic acid ester salts and tetrahydrofolic acid by fractionated crystallisation of tetrahydrofolic acid salts - Google Patents

Method for making pure stereoisomers of tetrahydrofolic acid ester salts and tetrahydrofolic acid by fractionated crystallisation of tetrahydrofolic acid salts Download PDF

Info

Publication number
CA2378869C
CA2378869C CA002378869A CA2378869A CA2378869C CA 2378869 C CA2378869 C CA 2378869C CA 002378869 A CA002378869 A CA 002378869A CA 2378869 A CA2378869 A CA 2378869A CA 2378869 C CA2378869 C CA 2378869C
Authority
CA
Canada
Prior art keywords
alpha
tetrahydrofolic acid
process according
acid
tetrahydrofolic
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
CA002378869A
Other languages
English (en)
French (fr)
Other versions
CA2378869A1 (en
Inventor
Hans Rudolf Muller
Rudolf Moser
Viola Groehn
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.)
Merck et Cie
Original Assignee
Eprova AG
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 Eprova AG filed Critical Eprova AG
Publication of CA2378869A1 publication Critical patent/CA2378869A1/en
Application granted granted Critical
Publication of CA2378869C publication Critical patent/CA2378869C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D475/00Heterocyclic compounds containing pteridine ring systems
    • C07D475/02Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4
    • C07D475/04Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
CA002378869A 1999-07-14 2000-07-12 Method for making pure stereoisomers of tetrahydrofolic acid ester salts and tetrahydrofolic acid by fractionated crystallisation of tetrahydrofolic acid salts Expired - Lifetime CA2378869C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01300/99A CH695217A5 (de) 1999-07-14 1999-07-14 Verfahren zur Trennung optischer Isomeren von Tetrahydrofolsäureestersalzen und Tetrahydrofolsäure.
CH1300/99 1999-07-14
PCT/EP2000/006647 WO2001004121A1 (de) 1999-07-14 2000-07-12 Verfahren zur herstellung reiner stereoisomeren von tetrahydrofolsäureestersalzen und tetrahydrofolsäure durch fraktionierte kristallisation von tetrahydrofolsäureestersalzen

Publications (2)

Publication Number Publication Date
CA2378869A1 CA2378869A1 (en) 2001-01-18
CA2378869C true CA2378869C (en) 2006-12-12

Family

ID=4207222

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002378869A Expired - Lifetime CA2378869C (en) 1999-07-14 2000-07-12 Method for making pure stereoisomers of tetrahydrofolic acid ester salts and tetrahydrofolic acid by fractionated crystallisation of tetrahydrofolic acid salts

Country Status (13)

Country Link
US (1) US6858731B1 (enExample)
EP (1) EP1200436B1 (enExample)
JP (1) JP4949581B2 (enExample)
CN (1) CN1206229C (enExample)
AT (1) ATE412654T1 (enExample)
AU (1) AU6272700A (enExample)
CA (1) CA2378869C (enExample)
CH (1) CH695217A5 (enExample)
DE (1) DE50015428D1 (enExample)
DK (1) DK1200436T3 (enExample)
ES (1) ES2316375T3 (enExample)
PT (1) PT1200436E (enExample)
WO (1) WO2001004121A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH694251A5 (de) * 1999-07-14 2004-10-15 Eprova Ag Herstellung von Tetrahydropterin und Derivaten.
ITMI20020132A1 (it) 2002-01-25 2003-07-25 Gmt Fine Chemicals Sa Processo per l'ottenimento dell'acido (6s)-5,6,7,8-tetraidrofolico
WO2020007836A1 (en) * 2018-07-06 2020-01-09 Merck Patent Gmbh Crystalline salt of 5-methyl-(6s)-tetrahydrofolic acid and l-isoleucine ethyl ester
CN116836166B (zh) * 2023-06-30 2025-10-31 山东师范大学 一种叶酸衍生物及其制备方法和防治铁死亡中的应用

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497416A (enExample) * 1972-05-12 1974-01-23
DE3821875C1 (enExample) 1988-06-29 1990-02-15 Eprova Ag, Forschungsinstitut, Schaffhausen, Ch
CH681303A5 (enExample) * 1991-01-16 1993-02-26 Eprova Ag
CH682664A5 (en) * 1991-10-15 1993-10-29 Eprova Ag Stable salts of 5,10-methylene tetrahydrofolate.
US5300503A (en) 1991-11-01 1994-04-05 Fmc Corporation Insecticidal 4,6-diamino-1,2-dihydro-1,3,5-triazine derivatives
US5698693A (en) * 1992-11-16 1997-12-16 The United States Of America As Represented By The Department Of Health And Human Services Process of separating the diastereomers of (6R,6S) -5,6,7,8-tetrahydrofolic acid derivatives
CH686672A5 (de) * 1992-12-01 1996-05-31 Cerbios Pharma Sa Verfahren zur Herstellung von (6S)-5,6,7,8-Tetrahydrofolsaeure.
CH686369A5 (de) 1994-05-09 1996-03-15 Eprova Ag Stabile kristalline (6S)- und (6R)-Tetrahydrofolseure.
JP3433301B2 (ja) * 1993-11-25 2003-08-04 アサヒビール株式会社 5,6,7,8−テトラヒドロ−d−ネオプテリンの有機酸塩の製造法

Also Published As

Publication number Publication date
CH695217A5 (de) 2006-01-31
DE50015428D1 (de) 2008-12-11
EP1200436B1 (de) 2008-10-29
JP2003504371A (ja) 2003-02-04
AU6272700A (en) 2001-01-30
ATE412654T1 (de) 2008-11-15
CA2378869A1 (en) 2001-01-18
WO2001004121A1 (de) 2001-01-18
JP4949581B2 (ja) 2012-06-13
DK1200436T3 (da) 2009-02-23
PT1200436E (pt) 2009-02-10
CN1360586A (zh) 2002-07-24
US6858731B1 (en) 2005-02-22
CN1206229C (zh) 2005-06-15
EP1200436A1 (de) 2002-05-02
ES2316375T3 (es) 2009-04-16

Similar Documents

Publication Publication Date Title
US20080306263A1 (en) Process For The Preparation Of Optically Pure Tetrahydropterins And Derivatives, And Specifically Of Optically Pure Tetrahydrofolic Acid And Derivatives Thereof, By Stereospecific Hydrogenation
CN101239985B (zh) 头孢地嗪钠的制备方法
FI91157C (fi) Menetelmä (6R,S)-folinaattien erottamiseksi
CA2378869C (en) Method for making pure stereoisomers of tetrahydrofolic acid ester salts and tetrahydrofolic acid by fractionated crystallisation of tetrahydrofolic acid salts
CN119032084A (zh) 麦角硫因的化学合成方法和使用方法
CN111995627B (zh) 枸橼酸托法替布中间体及其制备方法和应用
ES2525357T3 (es) Proceso para la preparación de derivados de pteridina
WO2013008172A1 (en) Zwitterionic liquid as co-catalyst for the enzymatic esterification
CA2383751C (en) Intermediates for the production of quinolone carboxylic acid derivatives
EP0445813B1 (en) 7-(Diphenylmethyl)oxy-9a-methoxymitosane and the preparation and use thereof
CN109912625A (zh) 一种降低头孢他啶杂质h的工艺方法
KR102702468B1 (ko) 트레프로스티닐 일수화물 결정 및 그 제조 방법
US5130450A (en) Platinum complexes
US20080319189A1 (en) Processes for the synthesis of olanzapine
EP3931197B1 (en) Process for the preparation of (6s)-3-[(4s)-4-cyano-2-oxo-pyrrolidin-1-yl]-6-methyl-n-(3,4,5-trifluorophenyl)-6,7-dihydro-4h-pyrazolo[1,5-a]pyrazine-5-carboxamide
CN111039963B (zh) Wxfl10203614水溶性类似物及其合成方法
EP0454385A1 (en) Process for preparing optically active isomers of 6-substituted purinyl piperazine derivatives
US5175303A (en) Preparation of 7-(diphenylmethyl)oxy-9A-methoxymitosane
CN120329242A (zh) 一种制备jak激酶抑制剂关键中间体的方法
RU1794941C (ru) N(3-Нитро-4-хлорфенилсульфонил)-5-хлор-антранилова кислота в качестве промежуточного продукта дл получени N-(4-хлорфенил)-2(3-нитро-4-хлор-фенилсульфонил)амино-5-хлорбензамида, обладающего противотрихоцефалезной активностью
CN105541867A (zh) 一种头孢尼西钠结晶方法
CN113234081A (zh) 一种吡咯并吡唑衍生物与dmpeda做脲的制备方法
TH2201006953A (th) กระบวนการทำเกลือไดโซเดียมของ n,n-ไดอะซีติล-l-ซิสทีนจากซิสทีนและอะซีติล คลอไรด์ในเมทานอลในการมีอยู่ของโซเดียม ไฮดรอกไซด์
KR19980020599A (ko) N-히드록시메틸 세팔렉신 수용성 유도체의 제조방법

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20200713