GB1551551A - Process for preparing cephalosporanic acid derivatives - Google Patents

Process for preparing cephalosporanic acid derivatives

Info

Publication number
GB1551551A
GB1551551A GB2040777A GB2040777A GB1551551A GB 1551551 A GB1551551 A GB 1551551A GB 2040777 A GB2040777 A GB 2040777A GB 2040777 A GB2040777 A GB 2040777A GB 1551551 A GB1551551 A GB 1551551A
Authority
GB
United Kingdom
Prior art keywords
acid derivatives
cephalosporanic acid
preparing
preparing cephalosporanic
derivatives
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
Application number
GB2040777A
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.)
Meiji Seika Kaisha Ltd
Original Assignee
Meiji Seika Kaisha 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 Meiji Seika Kaisha Ltd filed Critical Meiji Seika Kaisha Ltd
Publication of GB1551551A publication Critical patent/GB1551551A/en
Expired 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
    • C07D501/14—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
    • C07D501/26—Methylene radicals, substituted by oxygen atoms; Lactones thereof with the 2-carboxyl group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cephalosporin Compounds (AREA)
GB2040777A 1976-05-19 1977-05-16 Process for preparing cephalosporanic acid derivatives Expired GB1551551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5664576A JPS52142089A (en) 1976-05-19 1976-05-19 Preparation of cephalosporanic acid derivatives

Publications (1)

Publication Number Publication Date
GB1551551A true GB1551551A (en) 1979-08-30

Family

ID=13033070

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3233178A Expired GB1551552A (en) 1976-05-19 1977-05-16 Process for preparing n-protected cephalosporin c diesters
GB2040777A Expired GB1551551A (en) 1976-05-19 1977-05-16 Process for preparing cephalosporanic acid derivatives

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3233178A Expired GB1551552A (en) 1976-05-19 1977-05-16 Process for preparing n-protected cephalosporin c diesters

Country Status (5)

Country Link
JP (1) JPS52142089A (en)
CA (1) CA1113087A (en)
DE (1) DE2721731C2 (en)
FR (1) FR2351983A1 (en)
GB (2) GB1551552A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53112890A (en) * 1977-03-14 1978-10-02 Meiji Seika Kaisha Ltd Preparation of cephalosporin ester

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793191A (en) * 1971-12-28 1973-06-22 Toyama Chemical Co Ltd PROCESS FOR PRODUCING 7-ACYLAMIDO-3-CEPHEM-4- CARBOXYLIC ACIDS
GB1430238A (en) * 1972-07-10 1976-03-31 Glaxo Lab Ltd Esters

Also Published As

Publication number Publication date
JPS6133837B2 (en) 1986-08-04
GB1551552A (en) 1979-08-30
DE2721731A1 (en) 1977-12-08
JPS52142089A (en) 1977-11-26
FR2351983A1 (en) 1977-12-16
DE2721731C2 (en) 1982-12-23
CA1113087A (en) 1981-11-24
FR2351983B1 (en) 1985-03-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940516