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GB1390754A - Penicillin and cephalosporin esters - Google Patents

Penicillin and cephalosporin esters

Info

Publication number
GB1390754A
GB1390754A GB534574A GB534574A GB1390754A GB 1390754 A GB1390754 A GB 1390754A GB 534574 A GB534574 A GB 534574A GB 534574 A GB534574 A GB 534574A GB 1390754 A GB1390754 A GB 1390754A
Authority
GB
United Kingdom
Prior art keywords
formula
group
reacting
prepared
compound
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
GB534574A
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 GB534574A priority Critical patent/GB1390754A/en
Priority claimed from GB2943172A external-priority patent/GB1377817A/en
Priority claimed from GB1960471A external-priority patent/GB1364672A/en
Publication of GB1390754A publication Critical patent/GB1390754A/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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

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

Abstract

1390754 Penicillins and cephalosporins BEECHAM GROUP Ltd 23 June 1972 [9 June 1971] 05345/74 Divided out of 1377817 Heading C2C Novel compounds of Formula I and pharmaceutically acceptable acid addition salts of those compounds which contain a basic nitrogen atom wherein X and Y are the same or different and each represents oxygen or sulphur, Z represents a straight or branched, saturated or unsaturated divalent hydrocarbon radical which may be interrupted by a hetero atom, R represents hydrogen or an alkyl, alkenyl, alkynyl, aryl or aralkyl group or a functional substituent, A represents a group of Formula II or III wherein B represents hydrogen or an acetoxy group and R<SP>1</SP> is an organic acylamino group may be prepared (1) by reacting a compound of Formula IX or a reactive esterifying derivative thereof, in which formula A is as defined with respect to Formula I, with a compound of Formula X or a reactive esterifying derivative thereof, in which X, Y, Z and R are as above defined or (2) by reacting a compound of Formula XIII or a silyl derivative thereof wherein H 2 NQ- represents a 6-amino penam-3, a 7-amino-3- methylceph-3-em-4 or a 7-amino-3-acetoxymethylceph-3-em-4 radical and R, X, Y and Z are as above defined with a reactive N-acylating derivative of a compound of Formula XIV wherein R<SP>1</SP>a is an organic acyl group which may carry a protected amino group, removing the silyl group, if present, by hydrolysis or alcoholysis, and if a protected amino group is present, optionally converting it to a free amino group under acid or neutral conditions. The esters of Formula XIII are stated to be novel and may be prepared by reacting 6-aminopenicillanic acid, 7-aminocephalosporanic or 7-aminodesacetoxycephalosporanic acid or N- protected derivatives thereof with the appropriate 3-bromolactone and thereafter removing the protecting group, if present. Crotoriolactone and 3-chloro-3-methyl butyrolactone are prepared by known methods. 3-Bromocrotonolactone is prepared by reacting crotonolactone with N-bromo succinimide and azoisobutyronitrile. Pharmaceutical compositions having antibacterial activity, preferably for oral administration, comprise the compounds of Formula I and a pharmaceutically acceptable carrier.
GB534574A 1971-06-09 1971-06-09 Penicillin and cephalosporin esters Expired GB1390754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB534574A GB1390754A (en) 1971-06-09 1971-06-09 Penicillin and cephalosporin esters

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2943172A GB1377817A (en) 1971-06-09 1971-06-09 Penicillins and cephalosporins
GB1960471A GB1364672A (en) 1971-06-09 1971-06-09 Penicillins
GB534574A GB1390754A (en) 1971-06-09 1971-06-09 Penicillin and cephalosporin esters

Publications (1)

Publication Number Publication Date
GB1390754A true GB1390754A (en) 1975-04-16

Family

ID=27254615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB534574A Expired GB1390754A (en) 1971-06-09 1971-06-09 Penicillin and cephalosporin esters

Country Status (1)

Country Link
GB (1) GB1390754A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039086A3 (en) * 1980-04-30 1982-02-10 Kanebo Ltd. Novel ampicillin esters and production thereof
EP0069962A1 (en) * 1981-07-15 1983-01-19 Kanebo, Ltd. Novel ester of 1,1-dioxopenicillanic acid, process for production thereof, and use thereof as beta-lactamase inhibitor
EP0070477A1 (en) * 1981-07-18 1983-01-26 Kanebo, Ltd. Novel ester of 6-((hexahydro-1H-azepin-1-yl)methyleneamino)penicillanic acid, process for its production, and its use as antibacterial agent
US4619785A (en) * 1982-06-29 1986-10-28 Astra Lakemedel Aktiebolag Novel synthesis route for bacampicillin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039086A3 (en) * 1980-04-30 1982-02-10 Kanebo Ltd. Novel ampicillin esters and production thereof
EP0061206A1 (en) * 1980-04-30 1982-09-29 Kanebo, Ltd. 6-Aminopenicillanic acid esters and their use for producing new ampicillin esters
EP0069962A1 (en) * 1981-07-15 1983-01-19 Kanebo, Ltd. Novel ester of 1,1-dioxopenicillanic acid, process for production thereof, and use thereof as beta-lactamase inhibitor
EP0070477A1 (en) * 1981-07-18 1983-01-26 Kanebo, Ltd. Novel ester of 6-((hexahydro-1H-azepin-1-yl)methyleneamino)penicillanic acid, process for its production, and its use as antibacterial agent
US4619785A (en) * 1982-06-29 1986-10-28 Astra Lakemedel Aktiebolag Novel synthesis route for bacampicillin

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee