ES446353A1 - Procedimiento para preparar cefalosporinas. - Google Patents

Procedimiento para preparar cefalosporinas.

Info

Publication number
ES446353A1
ES446353A1 ES76446353A ES446353A ES446353A1 ES 446353 A1 ES446353 A1 ES 446353A1 ES 76446353 A ES76446353 A ES 76446353A ES 446353 A ES446353 A ES 446353A ES 446353 A1 ES446353 A1 ES 446353A1
Authority
ES
Spain
Prior art keywords
formula
group
reaction
lower alkyl
hydrogen
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
ES76446353A
Other languages
English (en)
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.)
Pfizer Ltd
Pfizer Corp
Original Assignee
Pfizer Ltd
Pfizer Corp
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 GB7512813A external-priority patent/GB1542397A/en
Application filed by Pfizer Ltd, Pfizer Corp filed Critical Pfizer Ltd
Publication of ES446353A1 publication Critical patent/ES446353A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D501/00—Heterocyclic 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
    • C07D501/14—Compounds having a nitrogen atom directly attached in position 7
    • C07D501/16—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3
    • C07D501/20—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids
    • C07D501/24—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids with hydrocarbon radicals, substituted by hetero atoms or hetero rings, attached in position 3
    • C07D501/36—Methylene radicals, substituted by sulfur atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
    • C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • C07D249/10—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D249/12—Oxygen or sulfur atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D271/00—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
    • C07D271/02—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms not condensed with other rings
    • C07D271/10—1,3,4-Oxadiazoles; Hydrogenated 1,3,4-oxadiazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
    • C07D285/01—Five-membered rings
    • C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
    • C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
    • C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
    • 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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cephalosporin Compounds (AREA)
ES76446353A 1975-03-27 1976-03-25 Procedimiento para preparar cefalosporinas. Expired ES446353A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7512813A GB1542397A (en) 1975-03-27 1975-03-27 Cephem compounds
GB4393575 1975-10-24

Publications (1)

Publication Number Publication Date
ES446353A1 true ES446353A1 (es) 1977-11-16

Family

ID=26249284

Family Applications (1)

Application Number Title Priority Date Filing Date
ES76446353A Expired ES446353A1 (es) 1975-03-27 1976-03-25 Procedimiento para preparar cefalosporinas.

Country Status (15)

Country Link
JP (1) JPS51138694A (ja)
AU (1) AU1244276A (ja)
DD (1) DD124601A5 (ja)
DE (1) DE2612760A1 (ja)
DK (1) DK132876A (ja)
ES (1) ES446353A1 (ja)
FI (1) FI760793A (ja)
FR (1) FR2305186A1 (ja)
IE (1) IE43541B1 (ja)
IL (1) IL49183A0 (ja)
LU (1) LU74651A1 (ja)
NL (1) NL7603116A (ja)
NO (1) NO761052L (ja)
PT (1) PT64951B (ja)
SE (1) SE7603699L (ja)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA999574A (en) * 1972-06-14 1976-11-09 Smith Kline And French Canada Ltd. 7-hydroxyhalophenylacetamido-3-h heterocyclicthiomethyl cephalosporins
FR2215942B1 (ja) * 1973-01-31 1978-12-22 Bristol Myers Co
US3989694A (en) * 1974-12-27 1976-11-02 Smithkline Corporation 7-Acyl-3-(substituted triazolyl thiomethyl)cephalosporins

Also Published As

Publication number Publication date
DE2612760A1 (de) 1976-10-07
IE43541B1 (en) 1981-03-25
AU1244276A (en) 1977-10-06
PT64951A (en) 1976-04-01
FR2305186B1 (ja) 1980-07-04
LU74651A1 (ja) 1977-10-10
NO761052L (ja) 1976-09-28
NL7603116A (nl) 1976-09-29
DK132876A (da) 1976-09-28
IL49183A0 (en) 1976-05-31
PT64951B (en) 1977-08-26
DD124601A5 (ja) 1977-03-02
SE7603699L (sv) 1976-09-28
IE43541L (en) 1976-09-27
FI760793A (ja) 1976-09-28
FR2305186A1 (fr) 1976-10-22
JPS51138694A (en) 1976-11-30

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