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GB1450764A - Penicillins - Google Patents

Penicillins

Info

Publication number
GB1450764A
GB1450764A GB4266272A GB4266272A GB1450764A GB 1450764 A GB1450764 A GB 1450764A GB 4266272 A GB4266272 A GB 4266272A GB 4266272 A GB4266272 A GB 4266272A GB 1450764 A GB1450764 A GB 1450764A
Authority
GB
United Kingdom
Prior art keywords
group
amino
penicillins
acid
prepared
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
GB4266272A
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 GB4266272A priority Critical patent/GB1450764A/en
Priority to BE135688A priority patent/BE804896A/en
Publication of GB1450764A publication Critical patent/GB1450764A/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)

Abstract

1450764 Penicillins BEECHAM GROUP Ltd 21 Aug 1973 [14 Sept 1972] 42662/72 Heading C2C Novel penicillins of Formula (I) and salts thereof, wherein R 1 and R 2 are each a hydrogen atom, a C 1-6 alkyl group or a nitro group, or R 1 is hydrogen and R 2 is a 3-hydroxy group, with the proviso that R 1 and R 2 are not both hydrogen atoms, are prepared by reacting a N-acylating derivative of an acid of Formula (II) wherein X is an amino group or a group convertible thereto (e.g. N-(1-methoxycarbonylpropen-2-yl)amino), with 6-aminopenicillanic acid or a neutral salt thereof, and thereafter if necessary, converting X into an amino group. Any hydroxyl groups may also be protected before the reaction and subsequently deprotected. D - α - amino - α - (4 - hydroxy - 3 - nitrophenyl)acetic acid is prepared by nitrating D-α- amino-α-(4-hydroxyphenyl)acetic acid. The penicillins (I) or their pharmaceutically acceptable salts may be combined with pharmaceutical carriers or diluents to provide pharmaceutical compositions having antibiotic activity.
GB4266272A 1972-09-14 1972-09-14 Penicillins Expired GB1450764A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4266272A GB1450764A (en) 1972-09-14 1972-09-14 Penicillins
BE135688A BE804896A (en) 1972-09-14 1973-09-14 PENICILLINS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4266272A GB1450764A (en) 1972-09-14 1972-09-14 Penicillins

Publications (1)

Publication Number Publication Date
GB1450764A true GB1450764A (en) 1976-09-29

Family

ID=10425433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4266272A Expired GB1450764A (en) 1972-09-14 1972-09-14 Penicillins

Country Status (2)

Country Link
BE (1) BE804896A (en)
GB (1) GB1450764A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206116A (en) * 1978-10-16 1980-06-03 Bristol-Myers Company Novel penicillins

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206116A (en) * 1978-10-16 1980-06-03 Bristol-Myers Company Novel penicillins

Also Published As

Publication number Publication date
BE804896A (en) 1974-03-14

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Legal Events

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