CS962885A2 - Method of 7 beta(carboxyakenoyl)-3-cefem-4-carboxyl acids production - Google Patents

Method of 7 beta(carboxyakenoyl)-3-cefem-4-carboxyl acids production

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Publication number
CS962885A2
CS962885A2 CS859628A CS962885A CS962885A2 CS 962885 A2 CS962885 A2 CS 962885A2 CS 859628 A CS859628 A CS 859628A CS 962885 A CS962885 A CS 962885A CS 962885 A2 CS962885 A2 CS 962885A2
Authority
CS
Czechoslovakia
Prior art keywords
carboxyakenoyl
cefem
beta
alkylene
acids production
Prior art date
Application number
CS859628A
Other languages
Czech (cs)
Other versions
CS268526B2 (en
Inventor
Yoshio Hamashima
Original Assignee
Shionogi & Co
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
Priority claimed from JP58186601A external-priority patent/JPS6078987A/en
Priority claimed from JP59100890A external-priority patent/JPH0780892B2/en
Priority claimed from CS847528A external-priority patent/CS268513B2/en
Application filed by Shionogi & Co filed Critical Shionogi & Co
Priority to CS859628A priority Critical patent/CS268526B2/en
Publication of CS962885A2 publication Critical patent/CS962885A2/en
Publication of CS268526B2 publication Critical patent/CS268526B2/en

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  • Cephalosporin Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Cephems and analogues of formula (I) are new. R = aryl or heterocyclyl; R1 = H or halogen; R2 = single bond, alkylene, oxa-alkylene or thia-alkylene- R3, R6 = H, salt-forming atom or gp. or ester-forming gp.; R4 = H or MeO; R5 = H or a 3-substituent as found in cephalosporins; X = O, S or SO. Provided that when R2 = thia-alkylene, then R1 = halogen. - Intermediates of formula (II) are new.
CS859628A 1983-10-04 1985-12-20 Method of 7 beta(carboxyakenoyl)-3-cefem-4-carboxyl acids production CS268526B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS859628A CS268526B2 (en) 1983-10-04 1985-12-20 Method of 7 beta(carboxyakenoyl)-3-cefem-4-carboxyl acids production

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP58186601A JPS6078987A (en) 1983-10-04 1983-10-04 Acrylamidocephalosporins
JP59100890A JPH0780892B2 (en) 1984-05-18 1984-05-18 Carboxy alkenamide cefalosporin
CS847528A CS268513B2 (en) 1983-10-04 1984-10-04 Method of 7 beta-(carboxyalkanolamino)-3-cefem-carboxyl acids production
CS859628A CS268526B2 (en) 1983-10-04 1985-12-20 Method of 7 beta(carboxyakenoyl)-3-cefem-4-carboxyl acids production

Publications (2)

Publication Number Publication Date
CS962885A2 true CS962885A2 (en) 1989-06-13
CS268526B2 CS268526B2 (en) 1990-03-14

Family

ID=27179557

Family Applications (1)

Application Number Title Priority Date Filing Date
CS859628A CS268526B2 (en) 1983-10-04 1985-12-20 Method of 7 beta(carboxyakenoyl)-3-cefem-4-carboxyl acids production

Country Status (1)

Country Link
CS (1) CS268526B2 (en)

Also Published As

Publication number Publication date
CS268526B2 (en) 1990-03-14

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