WO1999052913A1 - Process for producing cephem compounds - Google Patents
Process for producing cephem compounds Download PDFInfo
- Publication number
- WO1999052913A1 WO1999052913A1 PCT/JP1999/001942 JP9901942W WO9952913A1 WO 1999052913 A1 WO1999052913 A1 WO 1999052913A1 JP 9901942 W JP9901942 W JP 9901942W WO 9952913 A1 WO9952913 A1 WO 9952913A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- compound
- acid
- phenol
- producing
- 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.)
- Ceased
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Definitions
- the present invention relates to a cefmy conjugate represented by the general formula (2).
- This cefmyi conjugate (2) is a compound called cefixime, which is widely used as a cephalosporin-based oral agent, and has uses such as an antibacterial agent (the latest antibiotics handbook, 9th edition, ed. 8 7 pages 1 9 9 4 years).
- the amino group and the carboxinole group are protected by an appropriate protecting group.
- the cephalosporin antibiotics usually contain free amines, carboxylic acids or pharmaceutically acceptable salts thereof. Since they are used in a form, it is necessary to remove these protecting groups inexpensively and with high yield at the final step of the production without destroying other parts of molecule II. Background art
- the acid-labile method of deprotecting the amino or carboxylic acid protecting group of a 3-lactam derivative requires the use of a large amount of a strong acid such as trifluoroacetic acid.
- a strong acid such as trifluoroacetic acid.
- problems in industrial production such as low yield, high cost, and difficulty in recovering the used trifluoroacetic acid.
- an industrial production method capable of producing the free cefem compound (2) in good yield by inexpensively and efficiently deprotecting the protecting group of 3) has not yet been established.
- An object of the present invention is to eliminate two or more protecting groups of a cefm derivative (1) in which an amino group and a carboxyl group are protected at once without using expensive reagents and without using a large amount. Accordingly, the present invention provides a novel technology capable of efficiently producing the cefm derivative (2). Disclosure of the invention
- the present invention relates to the use of the Cefmy conjugate represented by the general formula (1) with phenols alone or with protic acid and phenols to protect an amino group R 1 and / or a carboxylic acid R 2 , R 2 . 3.
- a process for producing a cefm compound, comprising deprotecting 3 at a stretch to produce a cefm compound represented by the general formula (2).
- R 1 represents a hydrogen atom, a formyl group, or a trityl group which may have an electron donating group on the phenyl ring.
- R 2 represents a tert-butyl group, a naphthylmethyl group, an anthrinolemethinole group, a phenyl ring A benzyl group which may have an electron donor or a diphenylmethyl group which may have an electron donor on the phenyl ring
- R 3 represents a naphthylmethyl group, an anthrylmethyl group or an electron donating group on the phenyl ring;
- the stability of a ⁇ -lactam derivative which is unstable to a strong acid is ensured by using a relatively weak acid, an acid phenol alone or a phenol and a small amount of a protic acid, and the deprotection is performed in good yield.
- a relatively weak acid an acid phenol alone or a phenol and a small amount of a protic acid
- acid-unstable] deprotection of the amino group ⁇ carboxyl group of a 3-latatam derivative can be carried out at once and with high yield without using a large amount of a strong acid, and is industrially feasible. Can be provided. It is also superior in terms of waste because it mainly uses phenols that are relatively easy to recover.
- Examples of the trityl group which may have an electron donating group on the phenyl ring represented by R 1 include a tritinol group, a 4,4 ′, 4 ′′ -trimethoxytrityl group, a 4,4 ′, 4 ′, 1′-trityl group. Examples include a tolylmethyl group.
- Examples of the electron donating group which can be substituted on the phenyl ring of the benzyl group or diphenylmethyl group represented by R 2 and R 3 include, for example, a lower alkyl group such as a hydroxy group, methyl, ethyl and tert-butyl, methoxy, ethoxy and the like. Lower alkoxy groups can be mentioned.
- the benzyl group and the diphenylmethyl group include those in which a substituted or unsubstituted phenyl group is bonded in the molecule via a methylene chain or a heteroatom.
- benzyl group examples include a benzyl group, a 2,4,6-trimethylbenzyl group, a p-methoxybenzyl group, a 3,4,5-trimethoxybenzyl group, a 3,5-dimethoxy-4-hydroxybenzyl group, Ronyl, diphenylmethyl, ditolylmethyl and the like.
- Examples of the phenols include substituted or unsubstituted phenols.
- Examples of the substituent on the phenol ring include a halogen atom such as a chlorine atom and a bromine atom, a lower alkyl group such as methyl and ethyl, and a lower alkoxy group such as methoxy and ethoxy.
- Examples of the substituted phenols include, for example, o-chlorophenol, m-chlorophenol, p-chlorophenol, o-clenephenol, m-cresophenol, p-cresol, m-methoxyphenol, and the like. . These phenols may be used alone or as a mixture of two or more. The amount used is 1 kg of compound (1). 0.5 to 20 Okg per unit, preferably about 1 to 5 Okg.
- This reaction is usually carried out in a state in which phenols are in a molten state, and no solvent is required. It can also be used as a solvent. However, it is not preferable to use a large amount of these solvents since the above deprotection reaction is inhibited.
- the amount of water or organic solvent used is about the same as the phenols used.
- the reaction temperature of the above reaction is not lower than the temperature at which the reaction system does not solidify, for example, 115 ° C. to 110 ° C. C, preferably about 10 ° C to 70 ° C.
- sulfonic acids such as benzene snolenic acid, p-toluenesulfonic acid, and methanesulfonic acid
- mineral acids such as hydrochloric acid, sulfuric acid, perchloric acid, and phosphoric acid, formic acid, and acetic acid
- carboxylic acids such as monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monofluoroacetic acid, difluoroacetic acid, trifluoroacetic acid and the like are also strong acids which are too strong to be exemplified.
- the amount used is as small as 000 :! to 5 equivalents, preferably about 0.0 :! to 2 equivalents relative to compound (1), so that a strong acid can be used within that range.
- the compound of the general formula (2) can be obtained as a substantially pure product by performing a usual extraction operation or crystallization operation, but can be purified by other methods.
- Example 2 A similar experiment was conducted by changing 360 mg of p-toluenesulfonic acid monohydrate used in Example 1 to 1 ml of 6N-hydrochloric acid. As a result, the target compound (2) trihydrate (2a, 70 Omg, 90.1%). The NMR of the obtained compound 2a was completely consistent with that of Example 1.
- Example 2 A similar experiment was conducted by changing 360 mg of p-toluenesulfonic acid monohydrate used in Example 1 to 1 ml of 50% sulfuric acid. As a result, the target compound (2) trihydrate (2a, 68 Omg , 84.3%). The ' ⁇ NMR of the obtained compound 2a was completely consistent with that of Example 1.
- Example 5 A similar experiment was conducted by changing 338 mg of p-toluenesulfonic acid monohydrate used in Example 5 to 1 ml of 5 °% sulfuric acid. As a result, the target compound (2) trihydrate (2a, 69 Omg, 9 1.8%). The 1 H NMR of the obtained compound 2a was completely consistent with that of Example 1.
- Example 9 Using CH 2 C 6 H 4 OCH 3 -p) and performing the same reaction as in Example 1 except that the amount of p-toluenesulfonic acid was changed to 26 lmg, the compound (2) trihydrate (2 a, 504 mg, 86.8%). The 1 H NMR of the obtained compound 2a was completely consistent with that of Example 1.
- Example 9
- Example 8 A similar experiment was conducted by changing 26 mg of p-toluenesulfonic acid monohydrate used in Example 8 to 0.73 g of 6N-hydrochloric acid. As a result, the target compound (2) trihydrate (2a , 48 Omg, 82.6%). The 1 H NMR of the obtained compound 2a completely matched that of Example 1.
- Example 8 A similar experiment was conducted by changing 261 mg of p-toluenesulfonic acid monohydrate used in Example 8 to 0.73 ml of 50% sulfuric acid. As a result, the target compound (2) trihydrate (2a, 466 mg, 80.2%). The 1 H NMR of the obtained compound 2a completely matched that of Example 1.
- Example 2 The same experiment as in Example 1 was conducted except that m-cresol used in Example 1 was changed to phenol and the reaction was carried out at 45 ° C. As a result, the target compound (2) trihydrate (2a , 59 Omg, 75.9%). The 1 H NMR of the obtained compound 2a completely matched that of Example 1.
- Example 11 A similar experiment was performed by changing 36 pmg of p-toluenesulfonic acid monohydrate used in Example 1 to 6g of lg-hydrochloric acid. As a result, the target compound (2) trihydrate (2a, 583 mg , 75.0%). The ' ⁇ NMR of the obtained compound 2a was completely consistent with that of Example 1.
- Example 11 A similar experiment was conducted by changing 360 mg of P-toluenesulfonic acid monohydrate used in 1 to 1 ml of 50% sulfuric acid. As a result, the target compound (2) trihydrate (2a, 562 mg, 72.3%). The 1 H NMR of the obtained compound 2a was completely consistent with that of Example 1. Industrial applicability
- the protecting group can be removed at a stretch by a simple operation from the Cefm derivative (1) having the amino group-carboxyl group protected.
- a large amount of expensive reagents is not required, and a large amount of a strong acid is not required. Nature was assured.
- -latatam derivative (2) can be industrially easily produced with high yield and high purity.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cephalosporin Compounds (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU34432/99A AU3443299A (en) | 1998-04-14 | 1999-04-13 | Process for producing cephem compounds |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12188898 | 1998-04-14 | ||
| JP10/121888 | 1998-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999052913A1 true WO1999052913A1 (en) | 1999-10-21 |
Family
ID=14822401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/001942 Ceased WO1999052913A1 (en) | 1998-04-14 | 1999-04-13 | Process for producing cephem compounds |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU3443299A (ja) |
| WO (1) | WO1999052913A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006067806A1 (en) * | 2004-12-21 | 2006-06-29 | Lupin Limited | Process for the preparation of cefixime |
| JP2020524713A (ja) * | 2017-06-23 | 2020-08-20 | チェジアン ホワイトサン ファーマシューティカル カンパニー リミテッド | ラタモキセフのカルボキシル基及びヒドロキシル基の保護基を取り除く方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58135894A (ja) * | 1982-01-22 | 1983-08-12 | Fujisawa Pharmaceut Co Ltd | 7―置換ブチルアミド―3―ビニルセファロスポラン酸誘導体 |
| JPS61263984A (ja) * | 1985-05-17 | 1986-11-21 | Otsuka Chem Co Ltd | β−ラクタム誘導体の製造方法 |
-
1999
- 1999-04-13 WO PCT/JP1999/001942 patent/WO1999052913A1/ja not_active Ceased
- 1999-04-13 AU AU34432/99A patent/AU3443299A/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58135894A (ja) * | 1982-01-22 | 1983-08-12 | Fujisawa Pharmaceut Co Ltd | 7―置換ブチルアミド―3―ビニルセファロスポラン酸誘導体 |
| JPS61263984A (ja) * | 1985-05-17 | 1986-11-21 | Otsuka Chem Co Ltd | β−ラクタム誘導体の製造方法 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006067806A1 (en) * | 2004-12-21 | 2006-06-29 | Lupin Limited | Process for the preparation of cefixime |
| US8008478B2 (en) | 2004-12-21 | 2011-08-30 | Lupin Limited | Process for the preparation of cefixime |
| JP2020524713A (ja) * | 2017-06-23 | 2020-08-20 | チェジアン ホワイトサン ファーマシューティカル カンパニー リミテッド | ラタモキセフのカルボキシル基及びヒドロキシル基の保護基を取り除く方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3443299A (en) | 1999-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7405294B2 (en) | Intermediate cefdinir salts | |
| US6833452B2 (en) | Process for the preparation of highly pure crystalline (R,S)—cefuroxime axetil | |
| US20120095219A1 (en) | Process for preparing brinzolamide | |
| US7119211B2 (en) | Process for preparing optically active 3-(methylamino)-1-(2-thienyl) propan-1-ol and intermediates for preparation | |
| JPH08134055A (ja) | 3−o−置換アスコルビン酸の製造方法 | |
| WO1999052913A1 (en) | Process for producing cephem compounds | |
| KR100458233B1 (ko) | 3-비닐-세펨화합물의 제조방법 | |
| WO1986006723A1 (fr) | PROCEDE DE PRODUCTION DE DERIVES DE beta-LACTAME | |
| EP1028118B1 (en) | Process for producing 3-cephem compounds | |
| US4281117A (en) | Process for 3-chloro cephalosporin nucleus | |
| HUT59687A (en) | Process for producing 7-amino-3-methoxy-methyl-ceph-3-eme-4-carboxylic acid | |
| HU227283B1 (en) | Process for the preparation of carbidopa | |
| JPWO1999052913A1 (ja) | セフェム化合物の製造法 | |
| JPH0149139B2 (ja) | ||
| JP4138911B2 (ja) | β−ラクタム誘導体の製造法 | |
| EP0003847A1 (en) | Biphenylylglycine derivatives and their salts with bases | |
| FI57927B (fi) | Foerfarande foer resolvering av 2-(6-metoxi-2-naftyl)-propionsyra till optiska antipoder | |
| JPH09241227A (ja) | 新規光学分割剤 | |
| JPH1143475A (ja) | 光学活性N−カルボベンゾキシ−tert−ロイシンの製造法 | |
| AU2004249658B2 (en) | New process for the production of melagatran | |
| CN118852050A (zh) | 一种新型左旋咪唑中间体化合物及其制备方法和用途 | |
| JPH05239025A (ja) | フェニルセリン誘導体 | |
| JPS62212391A (ja) | セフエムアルコキシ基の脱離法 | |
| JPH10310568A (ja) | N−アルコキシカルボニル−l−アスパラギン | |
| JPS59231065A (ja) | プロピオン酸誘導体の光学分割方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZA ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
| 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 | ||
| NENP | Non-entry into the national phase |
Ref country code: KR |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| 122 | Ep: pct application non-entry in european phase | ||
| NENP | Non-entry into the national phase |
Ref country code: JP Ref document number: 2000543469 Format of ref document f/p: F |