ES416905A2 - Cephalosporin compounds - Google Patents

Cephalosporin compounds

Info

Publication number
ES416905A2
ES416905A2 ES416905A ES416905A ES416905A2 ES 416905 A2 ES416905 A2 ES 416905A2 ES 416905 A ES416905 A ES 416905A ES 416905 A ES416905 A ES 416905A ES 416905 A2 ES416905 A2 ES 416905A2
Authority
ES
Spain
Prior art keywords
acid
salt
preparation
oxide
cephalosporin compounds
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
ES416905A
Other languages
Spanish (es)
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.)
Glaxo Laboratories Ltd
Original Assignee
Glaxo Laboratories 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 Glaxo Laboratories Ltd filed Critical Glaxo Laboratories Ltd
Publication of ES416905A2 publication Critical patent/ES416905A2/en
Expired 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
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Cephalosporin Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Improvements made to the object of main patent no. 377,331 issued on May 3, 1972 for: "A process for the preparation of esters of 7β-acylamido-3-methyl-cef-3-em-4-carboxylic acid" according to which for the preparation of said acid said improvements comprise rearrange a 6β-acylamidopenicillinic acid 1-oxide (referred to herein as penicillin oxide) in the presence of a catalyst comprising a 0-mono-substituted ortho-phosphoric acid or a salt thereof with an aromatic heterocyclic tertiary nitrogen base having a pKb value of not less than 4, which salt can be formed "in situ" in the reaction mixture. (Machine-translation by Google Translate, not legally binding)
ES416905A 1972-07-14 1973-07-13 Cephalosporin compounds Expired ES416905A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3315172A GB1441587A (en) 1972-07-14 1972-07-14 Cephalosporin compounds

Publications (1)

Publication Number Publication Date
ES416905A2 true ES416905A2 (en) 1976-05-01

Family

ID=10349212

Family Applications (1)

Application Number Title Priority Date Filing Date
ES416905A Expired ES416905A2 (en) 1972-07-14 1973-07-13 Cephalosporin compounds

Country Status (13)

Country Link
JP (1) JPS4951295A (en)
AT (1) AT336185B (en)
AU (1) AU5807773A (en)
BE (1) BE802308R (en)
CH (1) CH582188A5 (en)
DE (1) DE2335715A1 (en)
ES (1) ES416905A2 (en)
FR (1) FR2193019B2 (en)
GB (1) GB1441587A (en)
HU (1) HU169697B (en)
LU (1) LU68010A1 (en)
NL (1) NL7309786A (en)
PL (1) PL87155B3 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843637A (en) * 1971-05-11 1974-10-22 Bristol Myers Co Process for rearranging 6-acylamidopenicillanic acid-1-oxides to 7-acyla mido-3-methyl-ceph-3-em-4-carboxylic acids

Also Published As

Publication number Publication date
AT336185B (en) 1977-04-25
GB1441587A (en) 1976-07-07
BE802308R (en) 1974-01-14
NL7309786A (en) 1974-01-16
DE2335715A1 (en) 1974-01-24
AU5807773A (en) 1975-01-16
HU169697B (en) 1977-02-28
FR2193019A2 (en) 1974-02-15
FR2193019B2 (en) 1978-01-06
LU68010A1 (en) 1973-09-14
CH582188A5 (en) 1976-11-30
PL87155B3 (en) 1976-06-30
ATA620273A (en) 1976-08-15
JPS4951295A (en) 1974-05-18

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Legal Events

Date Code Title Description
FD2A Announcement of lapse in spain

Effective date: 20170704