GB1551552A - Process for preparing n-protected cephalosporin c diesters - Google Patents

Process for preparing n-protected cephalosporin c diesters

Info

Publication number
GB1551552A
GB1551552A GB3233178A GB3233178A GB1551552A GB 1551552 A GB1551552 A GB 1551552A GB 3233178 A GB3233178 A GB 3233178A GB 3233178 A GB3233178 A GB 3233178A GB 1551552 A GB1551552 A GB 1551552A
Authority
GB
United Kingdom
Prior art keywords
diesters
preparing
protected cephalosporin
cephalosporin
protected
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
GB3233178A
Other languages
English (en)
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 GB1551552A publication Critical patent/GB1551552A/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)
GB3233178A 1976-05-19 1977-05-16 Process for preparing n-protected cephalosporin c diesters Expired GB1551552A (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
GB1551552A true GB1551552A (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 After (1)

Application Number Title Priority Date Filing Date
GB2040777A Expired GB1551551A (en) 1976-05-19 1977-05-16 Process for preparing cephalosporanic acid derivatives

Country Status (5)

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

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 (fr) * 1971-12-28 1973-06-22 Toyama Chemical Co Ltd Procede pour produire des acides 7-acylamido-3-cephem-4- carboxyliques
GB1430238A (en) * 1972-07-10 1976-03-31 Glaxo Lab Ltd Esters

Also Published As

Publication number Publication date
JPS52142089A (en) 1977-11-26
GB1551551A (en) 1979-08-30
DE2721731A1 (de) 1977-12-08
FR2351983B1 (cs) 1985-03-15
CA1113087A (en) 1981-11-24
JPS6133837B2 (cs) 1986-08-04
DE2721731C2 (de) 1982-12-23
FR2351983A1 (fr) 1977-12-16

Similar Documents

Publication Publication Date Title
JPS5334737A (en) Process for preparing 22oxybenzaldehyde
JPS5379809A (en) Process for preparing olefinoxide
PT66476A (en) Process for preparing antibiotics
IL52416A0 (en) Process for 3-chloro cephalosporins
JPS52122303A (en) Process for preparing acylcyanide
JPS5384907A (en) Process for preparing buthanediol
PT67194A (en) Process for preparing 4a-aryl-octahydro-1h-2-pyrimidines
HU178332B (en) Process for preparing cyclopentanol-lactones
HU175134B (hu) Sposob poluchenija 2-zameshchjonnykh proizvodnykh 1-omega-amino-alkoksi-benzola
GB1551552A (en) Process for preparing n-protected cephalosporin c diesters
GB1545647A (en) Process for preparing beta-methyldigoxin
JPS5371054A (en) Process for preparing 17alphaa hydroxyy211acetoxyyprogesteron
JPS5316398A (en) Process for preparing zeoliteea
GB1546531A (en) Process for preparing triazolethiols
JPS52113996A (en) Process for preparing 77alkoxyy 33chloromethyl cephem
PT66544B (en) Process for preparing peptide derivatives
PT67428B (en) Process for preparing d-homosteroids
PT67195B (en) Process for preparing trans-5a-aryl-decahydrobenzazepines
JPS52122327A (en) Process for preparing aminonitrophenols
IL52425A0 (en) Process for preparing cis-hexahydrodibenzopyranones
JPS52128392A (en) Process for preparing 33hydroxymethyl cephem
JPS5363395A (en) Cephem derivative and process for preparing same
JPS52131561A (en) Process for preparing same
JPS5287195A (en) Process for preparing 66methylputeline
CS190336B2 (en) Process for preparing disazodyes

Legal Events

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

Effective date: 19940516