FR2421904A2 - 3-Carbamoyloxy-methyl-7-thiazolyl-acetamido cephalosporin derivs. - prepd. from 3-acetoxymethyl cpd. by enzymatic de-acetylation and reaction with isocyanate, useful as antibiotics - Google Patents
3-Carbamoyloxy-methyl-7-thiazolyl-acetamido cephalosporin derivs. - prepd. from 3-acetoxymethyl cpd. by enzymatic de-acetylation and reaction with isocyanate, useful as antibioticsInfo
- Publication number
- FR2421904A2 FR2421904A2 FR7726059A FR7726059A FR2421904A2 FR 2421904 A2 FR2421904 A2 FR 2421904A2 FR 7726059 A FR7726059 A FR 7726059A FR 7726059 A FR7726059 A FR 7726059A FR 2421904 A2 FR2421904 A2 FR 2421904A2
- Authority
- FR
- France
- Prior art keywords
- thiazolyl
- reaction
- enzymatic
- antibiotics
- hydrolysis
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/587—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with aliphatic hydrocarbon radicals substituted by 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, said aliphatic radicals being substituted in the alpha-position to the ring by a hetero atom, e.g. with m >= 0, Z being a singly or a doubly bound hetero atom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Cephalosporin Compounds (AREA)
Abstract
Parent patent describes new cephalosporins of formula (I), syn or anti, where R = H or gp. easily removed by acid hydrolysis or hydrogenolysis. R1 = 1-4C, opt. unsatd. alkyl. A = H or an equiv. of an alkali, alkaline earth, Mg or amine cation. This addition describes the prodn. of (I) from cpds. (V) (where R1 = R other than H) by (i) enzymatic deacetylation; (ii) reaction with R2NCO (R2 = gp. easily removed by hydrolysis) then (iii) hydrolysis to give (I; R = R1), opt. followed by removal of R1 to give (I; R = H). In an alternative R1 is replaced by chloroacetyl which is removed in the final stage with thiourea. Also new are the Na salt of the syn isomer of 3-carbamoyloxymethyl-7- 2-(2-amino-4-thiazolyl)-2-methoxyimino-ac- etamido -ceph-3-en-4-carboxylic acid. (Ia); and intermediates of formula (II) (where Q is chloroacetyl and D is H or CONHR2, R2' = H or R2; or, Q is R1 and D is H or CONHR2). (I) are antibiotics useful against Gram positive or negative bacteria, including penicillin-resistant Staphylococci.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7726059A FR2421904A2 (en) | 1977-08-26 | 1977-08-26 | 3-Carbamoyloxy-methyl-7-thiazolyl-acetamido cephalosporin derivs. - prepd. from 3-acetoxymethyl cpd. by enzymatic de-acetylation and reaction with isocyanate, useful as antibiotics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7726059A FR2421904A2 (en) | 1977-08-26 | 1977-08-26 | 3-Carbamoyloxy-methyl-7-thiazolyl-acetamido cephalosporin derivs. - prepd. from 3-acetoxymethyl cpd. by enzymatic de-acetylation and reaction with isocyanate, useful as antibiotics |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2421904A2 true FR2421904A2 (en) | 1979-11-02 |
FR2421904B2 FR2421904B2 (en) | 1983-04-29 |
Family
ID=9194805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7726059A Granted FR2421904A2 (en) | 1977-08-26 | 1977-08-26 | 3-Carbamoyloxy-methyl-7-thiazolyl-acetamido cephalosporin derivs. - prepd. from 3-acetoxymethyl cpd. by enzymatic de-acetylation and reaction with isocyanate, useful as antibiotics |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2421904A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0155103A2 (en) * | 1984-02-24 | 1985-09-18 | Kureha Kagaku Kogyo Kabushiki Kaisha | Cephalosporin derivatives |
-
1977
- 1977-08-26 FR FR7726059A patent/FR2421904A2/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0155103A2 (en) * | 1984-02-24 | 1985-09-18 | Kureha Kagaku Kogyo Kabushiki Kaisha | Cephalosporin derivatives |
EP0155103A3 (en) * | 1984-02-24 | 1986-07-23 | Kureha Kagaku Kogyo Kabushiki Kaisha | Cephalosporin derivatives |
US4734409A (en) * | 1984-02-24 | 1988-03-29 | Kureha Kagaku Kogyo Kabushiki Kaisha | Cephalosporin derivative, process for producing the same and pharmaceutical composition containing the same |
Also Published As
Publication number | Publication date |
---|---|
FR2421904B2 (en) | 1983-04-29 |
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