GB1362723A - Substituted azetidin-2-ones - Google Patents

Substituted azetidin-2-ones

Info

Publication number
GB1362723A
GB1362723A GB14072A GB14072A GB1362723A GB 1362723 A GB1362723 A GB 1362723A GB 14072 A GB14072 A GB 14072A GB 14072 A GB14072 A GB 14072A GB 1362723 A GB1362723 A GB 1362723A
Authority
GB
United Kingdom
Prior art keywords
optionally substituted
carboxylic acid
iia
ones
acid group
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
GB14072A
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.)
Beecham Group PLC
Original Assignee
Beecham Group PLC
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 Beecham Group PLC filed Critical Beecham Group PLC
Priority to GB14072A priority Critical patent/GB1362723A/en
Publication of GB1362723A publication Critical patent/GB1362723A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D205/00—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
    • C07D205/02—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D205/06—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D205/08—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams
    • C07D205/09—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams with a sulfur atom directly attached in position 4
    • C07D205/095—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams with a sulfur atom directly attached in position 4 and with a nitrogen atom directly attached in position 3

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cephalosporin Compounds (AREA)

Abstract

1362723 Azetidinones BEECHAM GROUP Ltd 3 Jan 1972 140/72 Heading C2C Novel compounds (IIA) (including stereoisomers and acid addition salts thereof) where X is optionally substituted amino, R is a carboxylic acid group or a salt, amide, ester or thioester derivative of a carboxylic acid group and R<SP>1</SP> signifies -CH 2 C#C-R<SP>7</SP> or -CH=C=CH-R<SP>7</SP> where R<SP>7</SP> is H or optionally substituted alkyl, aralkyl or aryl, are made by introducing R<SP>1</SP> into appropriate penicillanic acids (compounds IIA can be converted one into the other by standard methods). Methyl 3-benzyl-7-amino- (and phenoxyacetamido) - 3 - cephem - 4 - carboxylates are also prepared.
GB14072A 1972-01-03 1972-01-03 Substituted azetidin-2-ones Expired GB1362723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB14072A GB1362723A (en) 1972-01-03 1972-01-03 Substituted azetidin-2-ones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14072A GB1362723A (en) 1972-01-03 1972-01-03 Substituted azetidin-2-ones

Publications (1)

Publication Number Publication Date
GB1362723A true GB1362723A (en) 1974-08-07

Family

ID=9699115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14072A Expired GB1362723A (en) 1972-01-03 1972-01-03 Substituted azetidin-2-ones

Country Status (1)

Country Link
GB (1) GB1362723A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees