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EP1608661A2 - Procede de preparation de composes de 7-amino(p-hydroxyphenylglycyl) cephem - Google Patents

Procede de preparation de composes de 7-amino(p-hydroxyphenylglycyl) cephem

Info

Publication number
EP1608661A2
EP1608661A2 EP04722335A EP04722335A EP1608661A2 EP 1608661 A2 EP1608661 A2 EP 1608661A2 EP 04722335 A EP04722335 A EP 04722335A EP 04722335 A EP04722335 A EP 04722335A EP 1608661 A2 EP1608661 A2 EP 1608661A2
Authority
EP
European Patent Office
Prior art keywords
formula
alkyl
group
methyl
solvent
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Withdrawn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
EP04722335A
Other languages
German (de)
English (en)
Inventor
Yatendra Kumar
Neera Tewari
Shailendra Kumar Singh
Bishwa Prakash Rai
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.)
Ranbaxy Laboratories Ltd
Original Assignee
Ranbaxy Laboratories Ltd
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 Ranbaxy Laboratories Ltd filed Critical Ranbaxy Laboratories Ltd
Publication of EP1608661A2 publication Critical patent/EP1608661A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • C07D501/02—Preparation
    • C07D501/04—Preparation from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents
    • C07D501/06—Acylation of 7-aminocephalosporanic acid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04—Antibacterial agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • C07D501/14—Compounds having a nitrogen atom directly attached in position 7
    • C07D501/16—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3
    • C07D501/20—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids
    • C07D501/22—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids with radicals containing only hydrogen and carbon atoms, attached in position 3
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • C07D501/14—Compounds having a nitrogen atom directly attached in position 7
    • C07D501/16—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3
    • C07D501/20—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids
    • C07D501/24—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids with hydrocarbon radicals, substituted by hetero atoms or hetero rings, attached in position 3
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • C07D501/14—Compounds having a nitrogen atom directly attached in position 7
    • C07D501/16—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3
    • C07D501/20—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids
    • C07D501/24—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids with hydrocarbon radicals, substituted by hetero atoms or hetero rings, attached in position 3
    • C07D501/36—Methylene radicals, substituted by sulfur atoms

Definitions

  • the field of the invention relates to pure 7- amino (p-hydroxyphenylglycyl) cephem compounds.
  • the invention also relates to processes for the preparation of pure 7- amino (p-hydroxyphenylglycyl) cephem compounds and pharmaceutical compositions that include the pure 7- amino (p-hydroxyphenylglycyl) cephem compounds.
  • 7- amino (p-hydroxyphenylglycyl) cephem compounds such as cefprozil, cefadroxil and cefatrizine are generally prepared by reacting a cephem derivative with a reactive derivative, such as a reactive ester; a reactive amide; and a mixed-acidic anhydride of 4-hydroxyphenylglycine.
  • a reactive derivative such as a reactive ester; a reactive amide; and a mixed-acidic anhydride of 4-hydroxyphenylglycine.
  • British Patent GB 1,240,687 discloses a process involving reacting N-protected 4- hydroxyplienylglycine with ethyl chloroformate to obtain a carbonate derivative which is acylated with a cephem compound.
  • this method gives a product of low purity.
  • a major impurity formed in such a process has the structure of Formula A,
  • R is a group commonly used at the 3-position in cephalosporins, for example, methyl, 1-propenyl and l,2,3-triazol-5-yl tbiornethyl.
  • the present invention provides a process which results in pure 7- amino (p- hydroxyphenylglycyl) cephem compounds.
  • the process of the present invention avoids purification by tedious and cumbersome processes.
  • the process of the present invention reduces the impurity content of the final product, eliminates the costly and time- consuming purification steps.
  • R is a group commonly used at the 3-position in cephalosporins and may include C 1 6 alkyl, C 2 6 alkenyl, C 2 _ 6 alkynyl, C 2 6 alkadienyl, cyclic C 3 6 alkyl, aryl, substituted aryl, heteroaryl, or heteroarylthioalkyl . h particular, it may include methyl, 1- propenyl and l,2,3-triazol-5-yl thiomethyl.
  • compositions and dosage forms containing a therapeutically effective amount of the cephem compounds of Formula I and which may also contain pharmaceutically acceptable carriers, excipients or diluents which are useful for the treatment of bacterial infections.
  • a method of treating bacterial infections comprising administering to a mammal in need thereof, a therapeutically effective amount of cephem compounds of Formula I as described above.
  • R is a group commonly used at the 3 -position in cephalosporins and includes C l g alkyl, C 2 6 alkenyl, C 2 6 alkynyl, C 2 6 alkadienyl, cyclic C 3 _ 6 alkyl, aryl, substituted aryl, heteroaryl, or heteroarylthioalkyl . hi particular, it includes methyl, 1- propenyl and l,2,3-triazol-5-yl tl iomethyl.
  • the process comprising:
  • R' is C 1-4 alkyl and M + is an alkali metal cation
  • R is C 1 6 alkyl, C,_ 6 alkenyl, C 2 _ 6 alkynyl, C 2 6 alkadienyl, cyclic C 3 6 alkyl, aryl, substituted aryl, heteroaryl, or heteroarylthioalkyl,
  • the preparation of the mixed anhydride is carried out in the presence of a small amount of an acid to minimize the formation of impurity of Formula B, in the step ii) reaction,
  • R is a group commonly used at the 3-position in cephalosporins, and includes C. 6 alkyl, C 2 6 alkenyl, C 2 6 alkynyl, C 2 6 alkadienyl, cyclic C 3 6 alkyl, aryl, substituted aryl, heteroaryl, or heteroarylthioalkyl.
  • the process is useful for the preparation of a wide variety of 7- amino(p- hydroxyphenylglycyl) -cephalosporins, for example, cefatrizine, cefadroxil, or cefprozil, in good yield and purity.
  • Examples of Dane salts of Formula III include sodium or potassium D-N-(l- methoxycarbonylpropen-2-yl)amino-p-hydroxyphenyl- acetate, and sodium or potassium D-N-(l-ethoxycarbonyl- propen-2-yl)-amino-p-hydroxyphenylacetate.
  • Examples of alkyl chloro formates include ethyl chloroformate and methyl chloroformate.
  • Examples of amines present as a catalyst for mixed carboxylic acid anhydride formation include N-methyl morpholine, N,N-dimethyl benzyl amine, pyridine, picoline, and lutidine.
  • the mixed anhydride may be prepared in one or more solvents, including, for example, halogenated hydrocarbon, ketone, ester, ether, nitrile, aromatic hydrocarbon, amide and mixtures thereof.
  • chlorinated hydrocarbons include dichoromethane and dichloroethylene;
  • ketones include acetone and methyl isobutyl ketone;
  • ester include ethyl acetate and isopropylacetate;
  • Examples of ether include tetrahydrofuran and dioxane; a nitrile includes acetonitrile;
  • aromatic hydrocarbon include toluene.
  • a suitable co-solvent may be used with a solvent, for example amide.
  • a suitable amide includes one or more of formamide, acetamide, N,N- dimethyl formamide, N-methylacetamide, N,N-dimethylacetamide and N- methylpyrrolidone. Mixtures of all of these solvents are also contemplated.
  • the formation of the mixed carboxylic acid anhydride may be carried out at temperatures, from about -80°C to about 50°C, or from about -50°C to about 5°C.
  • step i) is generally obtained as a solution or a suspension of the mixed carboxylic acid anhydride, and can be further used as such. If desired, this anhydride may be maintained at from about -60°C to about -20°C.
  • the 7-amino-ceph-3-em-4-carboxylic acid of Formula II maybe silylated with silylation agents in a solvent inert under the reaction conditions.
  • silylation agents include mono- or bissilylated amides, such as N,0-bis-(trimethylsilyl)acetamide (BSA), N-methyl-N-trimethylsilyl-acetamide (MSA); silylated ureas, such as N,N'-bis- (trimethylsilyl)-urea (BSU); or silazanes, such as 1 1 3,3,3- hexamethyldisilazane (HMDS), in combination with a halosilane such as trimethylchlorsilane, dimethyldichlorosilane, or an amine, such as triethylamine, tert.octylamine.
  • a halosilane such as trimethylchlorsilane, dimethyldichlorosilane, or an amine, such
  • the solvents used for mixed anhydride preparation above may be used for silylation of the 7-amino-ceph-3-em-4-carboxylic acid, and also for the step ii) reaction.
  • the reaction temperatures for the step ii) may be from about -60°C to room temperature or from about -40 ° C to about -10°C.
  • the reaction mixture of the step ii) may be worked up in a conventional manner.
  • the substituted vinyl group may be split by hydrolysis in aqueous acid.
  • the final product may be isolated in a conventional manner, for example by adjusting the pH of the reaction mixture.
  • the product of Formula I can be obtained in a very high purity, for example above 98%.
  • the 7-amino-ceph-3-em-4-carboxylic acid of Formula II may be prepared in accordance with any of the known methods (see U.S. Patent Nos. 3,867,380; 3 489,752 and 4,520,022).
  • the Dane salt of Formula III may be obtained from commercial sources or prepared by methods well known in the art.
  • compounds of Formula I having less than 0.5% by weight of the impurity of Formula B can be obtained.
  • compounds of Formula I having less than 0.1% by weight of the impurity of Formula B, or less than 0.05% can be obtained.
  • the resulting cephem compounds of Formula I may be formulated into ordinary dosage forms such as, for example, tablets, capsules, pills, solutions, etc. hi these cases, the medicaments can be prepared by conventional methods with conventional pharmaceutical excipients.
  • compositions include dosage forms suitable for oral and parenteral (including subcutaneous, intramuscular, and ophthalmic) administration.
  • the oral dosage forms may include solid dosage forms, like powder, tablets, capsules, as well as liquid suspensions.
  • Parenteral dosage forms may include intravenous infusions, sterile solutions for intramuscular, subcutaneous or intravenous administration, dry powders to be reconstituted with sterile water for parenteral administration, and the like.
  • the suspension of silylated 7-APCA was added to the above mixed anhydride at - 65 to - 70°C and further stirred for 60 minutes at -40 to -45°C. The temperature was raised to -20 to -25°C and further stirred for 90 minutes.
  • a mixture of water (170ml) and 35% hydrochloric acid (35 ml) was added to the reaction mixture and stirred for 15 minutes at 0 to 5°C.
  • the aqueous layer was diluted with dimethylformamide(700ml) and acetone (150 ml), and pH of the mixture adjusted to 6.5 with 25% ammonia solution.
  • the mixture was stirred at 20-25°C for 2 hours and the separated solid was filtered.
  • the solvate was washed dimethylformamide (100 ml) followed by acetone and dried at 40°C to yield 98g of cefprozil as dimethyl formamide (1.5 mole) solvate.
  • the suspension of silylated 7-ADCA was added to the above mixed anhydride at - 65 to - 70°C and further stirred for 60 minutes at -40 to -45°C. The temperature was raised to -20 to -25°C and further stirred for 90 minutes.
  • a mixture of water (170ml) and 35% hydrochloric acid (35 ml) was added to the reaction mixture and stirred for 15 minutes at 0 to 5°C.
  • the aqueous layer was diluted with dimethylformamide (700ml) and acetone (150 ml), and pH of the mixture adjusted to 6.5 with 25% ammonia solution.
  • the mixture was stirred at 20-25°C for 2 hours and the separated solid was filtered.
  • the solvate was washed dimethylformamide (100 ml) followed by acetone and dried at 40°C to yield 105g of cefadroxil as dimethyl formamide (1.5 mole) solvate.
  • cefadroxil dimethyl formamide solvate was converted to white crystalline solid cefadroxil monohydrate by the procedure reported in U.S. Patent No. 4,504,657.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oncology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Communicable Diseases (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cephalosporin Compounds (AREA)

Abstract

L'invention concerne des composés purs de 7-amino(p-hydroxyphénylglycyl) cephem. L'invention concerne également des procédés de préparation de composés purs de 7-amino p-hydroxyphénylglycyl) cephem et des compositions pharmaceutiques qui contiennent les composés purs de 7-amino(p-hydroxyphénylglycyl) cephem.
EP04722335A 2003-03-21 2004-03-22 Procede de preparation de composes de 7-amino(p-hydroxyphenylglycyl) cephem Withdrawn EP1608661A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
INDE03532003 2003-03-21
IN353DE2003 2003-03-21
PCT/IB2004/000850 WO2004083172A2 (fr) 2003-03-21 2004-03-22 Procede de preparation de composes de 7-amino(p-hydroxyphenylglycyl) cephem

Publications (1)

Publication Number Publication Date
EP1608661A2 true EP1608661A2 (fr) 2005-12-28

Family

ID=33017825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04722335A Withdrawn EP1608661A2 (fr) 2003-03-21 2004-03-22 Procede de preparation de composes de 7-amino(p-hydroxyphenylglycyl) cephem

Country Status (3)

Country Link
EP (1) EP1608661A2 (fr)
CA (1) CA2519853A1 (fr)
WO (1) WO2004083172A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080281093A1 (en) 2004-11-01 2008-11-13 Bandi Parthasaradhi Reddy Novel Process For Preparation of Cefprozil Intermediate
CN102408438B (zh) * 2010-09-26 2015-01-07 石药集团中奇制药技术（石家庄）有限公司 一种头孢丙烯一水合物的制备方法
CN102443013B (zh) * 2010-10-10 2014-09-17 石药集团中奇制药技术（石家庄）有限公司 一种头孢丙烯二甲基甲酰胺溶剂化物的制备方法
CN102911187B (zh) * 2012-10-11 2015-03-11 南通康鑫药业有限公司 一种头孢丙烯的回收方法
CN112694487B (zh) * 2020-12-29 2022-04-22 苏州盛达药业有限公司 一种头孢丙烯的制备方法
CN113533591B (zh) * 2021-06-18 2022-08-23 山东罗欣药业集团恒欣药业有限公司 一种头孢丙烯中苯和三聚乙醛的gc分析方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899394A (en) * 1972-12-26 1975-08-12 Bristol Myers Co Production of antibacterial agents
FR2215939B1 (fr) * 1973-01-31 1976-07-02 Roussel Uclaf
GB1505345A (en) * 1974-04-10 1978-03-30 Beecham Group Ltd Cephalosporins
US4148817A (en) * 1976-03-25 1979-04-10 Eli Lilly And Company Process and intermediates for preparing cephalosporin antibiotics
IT1065387B (it) * 1976-12-16 1985-02-25 Dobfar Spa Proccedimento per la preparazione di cefalosporine
KR820001564B1 (ko) * 1981-05-09 1982-09-02 동신제약 주식회사 새로운 실릴화제를 이용한 세팔로스포린 유도체의 제조방법
US20040077849A1 (en) * 2002-10-16 2004-04-22 Orchid Chemicals & Pharmaceuticals Limited Process for the preparation of cefadroxil
US6903211B2 (en) * 2002-10-30 2005-06-07 Orchid Chemicals & Pharmaceuticals Limited Process for the preparation of 3-propenyl cephalosporin DMF solvate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004083172A2 *

Also Published As

Publication number Publication date
CA2519853A1 (fr) 2004-09-30
WO2004083172A3 (fr) 2004-12-02
WO2004083172A2 (fr) 2004-09-30

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