CH635105A5 - Process for the preparation of 2- or 3-cephem-4-carboxylic acids bearing a substituted methyl radical in the 3-position - Google Patents

Process for the preparation of 2- or 3-cephem-4-carboxylic acids bearing a substituted methyl radical in the 3-position Download PDF

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Publication number
CH635105A5
CH635105A5 CH971779A CH971779A CH635105A5 CH 635105 A5 CH635105 A5 CH 635105A5 CH 971779 A CH971779 A CH 971779A CH 971779 A CH971779 A CH 971779A CH 635105 A5 CH635105 A5 CH 635105A5
Authority
CH
Switzerland
Prior art keywords
ester
formula
esters
compound
cephem
Prior art date
Application number
CH971779A
Other languages
German (de)
English (en)
Inventor
Kunihiko Tanaka
Hitoshi Nakamura
Original Assignee
Fujisawa Pharmaceutical 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
Application filed by Fujisawa Pharmaceutical Co filed Critical Fujisawa Pharmaceutical Co
Publication of CH635105A5 publication Critical patent/CH635105A5/de

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D501/00Heterocyclic 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
    • C07D501/02Preparation
    • C07D501/04Preparation from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cephalosporin Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
CH971779A 1973-03-24 1979-10-30 Process for the preparation of 2- or 3-cephem-4-carboxylic acids bearing a substituted methyl radical in the 3-position CH635105A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3377073A JPS5652906B2 (fr) 1973-03-24 1973-03-24

Publications (1)

Publication Number Publication Date
CH635105A5 true CH635105A5 (en) 1983-03-15

Family

ID=12395671

Family Applications (1)

Application Number Title Priority Date Filing Date
CH971779A CH635105A5 (en) 1973-03-24 1979-10-30 Process for the preparation of 2- or 3-cephem-4-carboxylic acids bearing a substituted methyl radical in the 3-position

Country Status (3)

Country Link
JP (1) JPS5652906B2 (fr)
CH (1) CH635105A5 (fr)
ES (1) ES445255A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047014B1 (fr) * 1980-09-02 1986-01-15 Asahi Kasei Kogyo Kabushiki Kaisha Thioesters et procédé pour leur préparation

Also Published As

Publication number Publication date
JPS49117487A (fr) 1974-11-09
JPS5652906B2 (fr) 1981-12-15
ES445255A1 (es) 1977-10-16

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PL Patent ceased
PL Patent ceased