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GB1457734A - Process for the preparation of penicillins - Google Patents

Process for the preparation of penicillins

Info

Publication number
GB1457734A
GB1457734A GB3145775A GB3145775A GB1457734A GB 1457734 A GB1457734 A GB 1457734A GB 3145775 A GB3145775 A GB 3145775A GB 3145775 A GB3145775 A GB 3145775A GB 1457734 A GB1457734 A GB 1457734A
Authority
GB
United Kingdom
Prior art keywords
nitrosohydrazino
july
penicillins
preparation
hydrazinobenzylpenicillin
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
GB3145775A
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.)
ISF SpA
Original Assignee
ISF SpA
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 ISF SpA filed Critical ISF SpA
Publication of GB1457734A publication Critical patent/GB1457734A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D499/00Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1457734 Nitrosohydrazino- and α-azidobenzylpenicillins ISF SpA 28 July 1975 [31 July 1974] 31457/75 Heading C2C Novel α-(1-nitrosohydrazino)-benzyl penicillin in the form of its epimers or mixtures thereof may be obtained by reacting α-hydrazinobenzylpenicillin of the Formula (II) in the form of an epimer or of a mixture thereof, with a nitrosating agent, e.g. sodium or potassium nitrite or gaseous nitrous oxide in admixture with an inert gas, for example nitrogen. The nitroso derivative (III) may be subsequently dehydrated in the presence of a mineral acid, e.g. at temperatures of - 5‹ to 30‹ C., to form α-azidobenzylpenicillin (I) which is isolated as such or in the form of a pharmaceutically acceptable salt with an alkali metal, alkaline earth metal or non-toxic organic base.
GB3145775A 1974-07-31 1975-07-28 Process for the preparation of penicillins Expired GB1457734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2578974 1974-07-31

Publications (1)

Publication Number Publication Date
GB1457734A true GB1457734A (en) 1976-12-08

Family

ID=11217741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3145775A Expired GB1457734A (en) 1974-07-31 1975-07-28 Process for the preparation of penicillins

Country Status (5)

Country Link
JP (1) JPS5143788A (en)
DE (1) DE2534072A1 (en)
FR (1) FR2280375A1 (en)
GB (1) GB1457734A (en)
SE (1) SE7508561L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6225582Y2 (en) * 1979-03-16 1987-06-30
JPS6225583Y2 (en) * 1979-03-16 1987-06-30
JPS56148591A (en) * 1980-04-21 1981-11-18 Nippon Telegr & Teleph Corp <Ntt> Two-color type heat-sensitive transfer recording element
JPS5715997A (en) * 1980-07-04 1982-01-27 Tomoegawa Paper Co Ltd Thermal recording medium
JPS57146693A (en) * 1981-09-08 1982-09-10 Nippon Telegr & Teleph Corp <Ntt> Thermal recording medium
JPS6339391A (en) * 1987-05-08 1988-02-19 Tomoegawa Paper Co Ltd Thermally sublimating recording medium

Also Published As

Publication number Publication date
FR2280375A1 (en) 1976-02-27
SE7508561L (en) 1976-02-02
DE2534072A1 (en) 1976-02-12
JPS5143788A (en) 1976-04-14

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Legal Events

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