GB1579296A - Preparation of 3-methylene-cephalosporins - Google Patents

Preparation of 3-methylene-cephalosporins Download PDF

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Publication number
GB1579296A
GB1579296A GB9266/77A GB926677A GB1579296A GB 1579296 A GB1579296 A GB 1579296A GB 9266/77 A GB9266/77 A GB 9266/77A GB 926677 A GB926677 A GB 926677A GB 1579296 A GB1579296 A GB 1579296A
Authority
GB
United Kingdom
Prior art keywords
formula
methylene
azetidin
cephalosporin
nanometers
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
GB9266/77A
Other languages
English (en)
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.)
ER Squibb and Sons LLC
Original Assignee
ER Squibb and Sons LLC
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 ER Squibb and Sons LLC filed Critical ER Squibb and Sons LLC
Publication of GB1579296A publication Critical patent/GB1579296A/en
Expired legal-status Critical Current

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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
    • C07D501/08Preparation by forming the ring or condensed ring systems
    • C07D501/10Preparation by forming the ring or condensed ring systems from compounds containing the penicillin ring system
    • 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
    • C07D501/14Compounds having a nitrogen atom directly attached in position 7

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Molecular Biology (AREA)
  • Cephalosporin Compounds (AREA)
GB9266/77A 1976-03-15 1977-03-04 Preparation of 3-methylene-cephalosporins Expired GB1579296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/666,989 US4375397A (en) 1976-03-15 1976-03-15 Process for preparing 3-methylene cephalosporins

Publications (1)

Publication Number Publication Date
GB1579296A true GB1579296A (en) 1980-11-19

Family

ID=24676364

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9266/77A Expired GB1579296A (en) 1976-03-15 1977-03-04 Preparation of 3-methylene-cephalosporins

Country Status (12)

Country Link
US (1) US4375397A (https=)
JP (1) JPS52111592A (https=)
BE (1) BE852469A (https=)
CA (1) CA1062654A (https=)
CH (1) CH597239A5 (https=)
DE (1) DE2709529C2 (https=)
DK (1) DK155008C (https=)
FR (1) FR2344561A1 (https=)
GB (1) GB1579296A (https=)
HU (1) HU172544B (https=)
IE (1) IE45116B1 (https=)
NL (1) NL7702342A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190724A (en) * 1978-11-13 1980-02-26 Eli Lilly And Company Process for 3-exomethylenecepham sulfoxides
US4966443A (en) * 1988-02-22 1990-10-30 Fuji Photo Film Co., Ltd. Light beam scanner
JPH023451U (https=) * 1988-06-16 1990-01-10

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2143211B1 (https=) * 1971-06-24 1975-10-31 Fujisawa Pharmaceutical Co
US3898142A (en) * 1972-03-24 1975-08-05 Schering Corp Photolytic cyclization of an amino-keto acylate

Also Published As

Publication number Publication date
DK106677A (da) 1977-09-16
BE852469A (fr) 1977-09-15
HU172544B (hu) 1978-09-28
US4375397A (en) 1983-03-01
DK155008C (da) 1989-06-12
DK155008B (da) 1989-01-23
IE45116L (en) 1977-09-15
DE2709529C2 (de) 1986-01-02
DE2709529A1 (de) 1977-09-22
JPS52111592A (en) 1977-09-19
JPS6120554B2 (https=) 1986-05-22
NL7702342A (nl) 1977-09-19
CH597239A5 (https=) 1978-03-31
IE45116B1 (en) 1982-06-30
FR2344561A1 (fr) 1977-10-14
CA1062654A (en) 1979-09-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
49R Reference inserted (sect. 9/1949)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930304