JPS54103886A - Preparation of cephalosporin derivative - Google Patents

Preparation of cephalosporin derivative

Info

Publication number
JPS54103886A
JPS54103886A JP799878A JP799878A JPS54103886A JP S54103886 A JPS54103886 A JP S54103886A JP 799878 A JP799878 A JP 799878A JP 799878 A JP799878 A JP 799878A JP S54103886 A JPS54103886 A JP S54103886A
Authority
JP
Japan
Prior art keywords
compound
formula
group
mineral
preparation
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.)
Pending
Application number
JP799878A
Other languages
Japanese (ja)
Inventor
Masao Shiosaki
Kimio Iino
Noboru Ishida
Tetsuo Hiraoka
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.)
Sankyo Co Ltd
Original Assignee
Sankyo Co 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 Sankyo Co Ltd filed Critical Sankyo Co Ltd
Priority to JP799878A priority Critical patent/JPS54103886A/en
Publication of JPS54103886A publication Critical patent/JPS54103886A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Cephalosporin Compounds (AREA)

Abstract

PURPOSE:To obtain an ester derivative useful as an intermediate for the synthesis of antibacterial cephalosporin derivatives, by reacting a 7-oxamic acid of a cephalosporin derivative with an alcohol in the presence of a mineral or lewis acid. CONSTITUTION:A compound of formula I: (R<1> is H or methoxy group; R<2> is H, lower acyloxy, heterocyclic thio or carbamoyloxy group; R<3> is H or carobxyl- protecting group) is reacted with a compound of the formula R<4> OH (R<4> is lower alkyl group) in the presence of a catalytic amount of a mineral or Lewis acid at -20-100 deg.C, preferably 10-30 deg.C for 30min-24hr to give a compound of formula II.
JP799878A 1978-01-27 1978-01-27 Preparation of cephalosporin derivative Pending JPS54103886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP799878A JPS54103886A (en) 1978-01-27 1978-01-27 Preparation of cephalosporin derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP799878A JPS54103886A (en) 1978-01-27 1978-01-27 Preparation of cephalosporin derivative

Publications (1)

Publication Number Publication Date
JPS54103886A true JPS54103886A (en) 1979-08-15

Family

ID=11681053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP799878A Pending JPS54103886A (en) 1978-01-27 1978-01-27 Preparation of cephalosporin derivative

Country Status (1)

Country Link
JP (1) JPS54103886A (en)

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