EP1966113A1 - Procédé pour produire un composé chlorure de méthyle alpha-chiral sous une forme pure - Google Patents

Procédé pour produire un composé chlorure de méthyle alpha-chiral sous une forme pure

Info

Publication number
EP1966113A1
EP1966113A1 EP06841346A EP06841346A EP1966113A1 EP 1966113 A1 EP1966113 A1 EP 1966113A1 EP 06841346 A EP06841346 A EP 06841346A EP 06841346 A EP06841346 A EP 06841346A EP 1966113 A1 EP1966113 A1 EP 1966113A1
Authority
EP
European Patent Office
Prior art keywords
formula
compound
mixtures
preparation
optically active
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.)
Withdrawn
Application number
EP06841346A
Other languages
German (de)
English (en)
Inventor
Jürgen Däuwel
Volker Rüdiger SPORYS
Martin VÖLKERT
Holger Bühler
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to EP06841346A priority Critical patent/EP1966113A1/fr
Publication of EP1966113A1 publication Critical patent/EP1966113A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/34—Separation; Purification; Stabilisation; Use of additives
    • C07C41/40—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation
    • C07C41/42—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/22—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of halogens; by substitution of halogen atoms by other halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/02—Ethers
    • C07C43/20—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
    • C07C43/225—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B2200/00—Indexing scheme relating to specific properties of organic compounds
    • C07B2200/07—Optical isomers

Definitions

  • the present invention relates to a process for preparing a specific ⁇ -chiral chloromethyl compound in pure or enriched form by distillative separation of said compound from mixtures containing this compound and higher-boiling impurities.
  • the subject ⁇ -chiral chloromethyl compound is in crystalline form at room temperature and is a central intermediate for the preparation of a class of drugs.
  • EP 0 678 503 describes ⁇ -amino-Y-hydroxy- ⁇ -aryl-alkenecarboxamides which have renin-inhibiting properties and can be used as anti-hypertensive agents in pharmaceutical preparations.
  • WO 01/09083 describes a process for the preparation of said ⁇ -amino- ⁇ -hydroxy- ⁇ -aryl-alkencarboxamide.
  • the central intermediate is the compound of the formula (Ia)
  • chlorinating reagents carbon tetrachloride and trioctylphosphine are used.
  • the resulting reaction product is purified by extractive workup first by flash chromatography and then by crystallization from hexane at -50 ° C.
  • the object of the present invention was thus to provide a process for the preparation of the compound of formula (I) in pure or enriched form, which does not have the disadvantages mentioned above and makes the compound of formula (I) available in high yield and purity.
  • Particularly suitable mixtures of substances to be used according to the invention are those which contain from about 25 to about 99% by weight, preferably from about 50 to about 98% by weight, more preferably from about 75 to about 97% by weight, even more preferably from about 85% to about 97%, and most preferably from about 90% to about 97%, by weight of the compound of formula (I) or the compound of formula (Ia).
  • the abovementioned mixtures also contain higher-boiling impurities and, if appropriate, even lower-boiling impurities, for example solvent residues or low molecular weight by-products of the preceding synthesis stages.
  • the process according to the invention serves to prepare optically active compounds of the formula (I) or (Ia) in pure or enriched form.
  • the term in pure or enriched form means either that the compound of the formula (I) or (Ia) is obtained in pure form or is obtained in the form of a substance mixture which has a higher content of the respective compound of the formula (I) or (Ia), as the substance mixtures used in the invention.
  • the compound of the formula (I) or (Ia) in pure form is understood to mean the particular compound having a purity of at least about 98% by weight, preferably about 99.5 to about 99.9% by weight.
  • the compound of the formula (I) or (Ia) in enriched form is preferably to be understood as meaning mixtures of substances which are from about 90 to about 99.9% by weight, preferably from about 95 to about 99.9 Wt .-%, particularly preferably from about 95 to about 99.9 wt .-% and most preferably from about 97 to about 99.9 wt .-% of the compound of formula (I) or (Ia) consists ,
  • the pure or enriched compounds of the formula (I) or (Ia) are obtained in optically active form.
  • the enantiomeric excess of the respective compound of the formula (I) or (Ia) obtained preferably corresponds largely to that of the compound of the formula (I) or (Ia) used in the substance mixture used according to the invention.
  • the compound of the formula (I) or (Ia) is preferably obtained in pure or enriched form with an enantiomeric excess which is at least 85%, more preferably at least 90%, most preferably at least 95% of the enantiomeric excess of the compound of the formula (I ) or (Ia) is.
  • the process according to the invention is preferably carried out such that the distillative separation is carried out at a pressure in the range from about 0.0001 mbar to about 10 mbar, preferably from about 0.001 to about 5 mbar, and more preferably from about 0.001 to about 0.1 mbar.
  • the distillative separation according to the invention can, depending on the selected pressure, be carried out at temperatures in the range of about 50.degree. C. to about 250.degree. C., preferably about 80 to about 220.degree.
  • the separation according to the invention is preferably carried out in the form of a continuous distillation.
  • Particularly preferred embodiments of the method according to the invention are so-called short-path or molecular distillation in which the paths between the evaporator surfaces and the condenser surfaces are as short and straight as possible.
  • Suitable evaporators are in particular short-path evaporator, thin-film evaporator or falling-film evaporator.
  • commercially available molecular distillation apparatuses such as those offered by specialist dealers. Alternatively, a rectification in the fine vacuum range is possible.
  • the process according to the invention allows the preparation of the compound of the formula (I) or (Ia) in pure or enriched form. Accordingly, the present invention also relates to a process for purifying the compound of the formula (I) or (Ia) by distillative removal of the compound of the formula (I) from mixtures comprising the optically active compound of the formula (I) and relatively high-boiling impurities.
  • the mixtures of substances to be used according to the invention may also contain lower-boiling compounds, ie compounds which have a lower boiling point than the compound of the formula (I) or (Ia).
  • lower-boiling compounds for example solvent residues, excess reagents or low molecular weight by-products of the preceding synthesis steps, can be obtained as prefractions within the scope of the distillative separation according to the invention and thus also be separated from the compound of formula (I) or (Ia).
  • the term higher-boiling impurities is to be understood as meaning those compounds which have a higher boiling point than the compound of the formula (I) or (Ia).
  • the above-mentioned higher-boiling compounds can also be by-products of the synthesis sequence for the preparation of the compound of the formula (I).
  • the mixtures of substances to be used according to the invention can be dimerization products of the compound of the formula (I), for example the compound of the formula (III)
  • higher-boiling dimerization products are, for example, those in which the two halves of the molecule are linked to one another via the aromatic compounds by a disulphide bridge.
  • the present invention therefore relates to the process described above, which is characterized in that use is made of mixtures which are obtainable by reacting an optically active alcohol of the formula (M)
  • the present invention relates to a process for preparing optically active compounds of the formula (I)
  • step b) distillative separation of the compound of the formula (I) from the mixtures of substances obtained in step a) containing the optically active compound of the formula (I) and higher-boiling impurities.
  • the present invention also relates to a process for the preparation of the compound of the formula (I) or (Ia) by reacting the compound of the formula (II) or (IIa) with thionyl chloride and N, N-dimethylformamide.
  • the optically active compound of the formula (II) and thionyl chloride preferably in a molar ratio in the range of about 1 to 1 to about 1 to 5, more preferably from about 1 to 1, 1 to about 1 to 2.
  • the reaction is carried out in the presence of N, N-dimethylformamide, wherein N, N-dimethylformamide and thionyl chloride are preferably used in a molar ratio in the range of about 0.01 to 1 to about 1 to 1, particularly preferably in the range of about 0, 03 to 1 to 0.1 to 1.
  • the reaction is preferably carried out by halogenating a solution of the optically active alcohol of the formula (II) in a suitable solvent which is inert under the reaction conditions, for example benzene, toluene, xylenes, ethers such as diethyl ether, THF, dioxane and the like Solvents, such as methylene chloride, chloroform, 1, 2-dichloroethane and the like more, preferably in toluene, together with the selected amount of N, N-dimethylformamide presents and the selected amount of thionyl chloride at a temperature of about 80 to about 100 ° C added.
  • the reaction is usually completed after about one to about 5 hours, often after about 2 hours.
  • the process according to the invention for the preparation of the compound of the formula (I) or (Ia) in pure or enriched form provides an unexpectedly efficient access to said compound, especially to the compound of the formula (Ia) in a form which satisfies the requirements of a drug intermediate are to take into account. It is clearly superior to the known processes for purifying the compounds mentioned by crystallization, in particular with regard to the number of process steps and the yield and purity of the product, since especially higher-boiling, structurally similar impurities with a high tendency to crystallize are insufficiently separated from the desired product by conventional crystallization ,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un procédé pour produire un composé chlorure de méthyle α-chiral spécifique sous une forme pure ou enrichie, consistant à séparer, par distillation, ce composé qui est contenu dans un mélange de substances actives renfermant également des impuretés à point d'ébullition élevé. Le composé chlorure de méthyle α-chiral spécifique selon l'invention se présente sous une forme cristalline à température ambiante, et constitue un produit intermédiaire essentiel pour produire une classe de médicaments.
EP06841346A 2005-12-23 2006-12-13 Procédé pour produire un composé chlorure de méthyle alpha-chiral sous une forme pure Withdrawn EP1966113A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06841346A EP1966113A1 (fr) 2005-12-23 2006-12-13 Procédé pour produire un composé chlorure de méthyle alpha-chiral sous une forme pure

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05112933 2005-12-23
PCT/EP2006/069632 WO2007074062A1 (fr) 2005-12-23 2006-12-13 Procédé pour produire un composé chlorure de méthyle alpha-chiral sous une forme pure
EP06841346A EP1966113A1 (fr) 2005-12-23 2006-12-13 Procédé pour produire un composé chlorure de méthyle alpha-chiral sous une forme pure

Publications (1)

Publication Number Publication Date
EP1966113A1 true EP1966113A1 (fr) 2008-09-10

Family

ID=37951840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06841346A Withdrawn EP1966113A1 (fr) 2005-12-23 2006-12-13 Procédé pour produire un composé chlorure de méthyle alpha-chiral sous une forme pure

Country Status (5)

Country Link
US (1) US20080306311A1 (fr)
EP (1) EP1966113A1 (fr)
JP (1) JP2009520753A (fr)
CN (1) CN101346333A (fr)
WO (1) WO2007074062A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1400961B1 (it) * 2010-06-04 2013-07-05 Chemo Iberica Sa Processo per la produzione di aliskiren
TW201202178A (en) * 2010-06-04 2012-01-16 Chemo Iberica Sa Process for producing Aliskiren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US700978A (en) * 1902-02-20 1902-05-27 Isaac E Palmer Hammock.
JP2727688B2 (ja) * 1989-09-22 1998-03-11 住友化学工業株式会社 光学活性なベンジル誘導体およびその製法
US5606078A (en) * 1994-04-18 1997-02-25 Ciba-Geigy Corporation 3,5-Disubstituted tetrahydrofuran-2-ones
IT1276165B1 (it) * 1995-11-24 1997-10-27 Caffaro Spa Ind Chim Procedimento per la sintesi enantioselettiva di derivati chirali di s-3-(4'-tert-butil)-fenil-2-metil propilammina, fungicidi sistemici
JP3915253B2 (ja) * 1998-06-12 2007-05-16 三菱化学株式会社 ω−ハロゲノアルキルスチレン誘導体の製造方法
PT1303478E (pt) * 2000-07-25 2004-10-29 Speedel Pharma Ag Processo para a preparacao de alcanoilamidas substituidas

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007074062A1 *

Also Published As

Publication number Publication date
CN101346333A (zh) 2009-01-14
JP2009520753A (ja) 2009-05-28
US20080306311A1 (en) 2008-12-11
WO2007074062A1 (fr) 2007-07-05

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