GB1529463A - Pharmaceutical compositions - Google Patents

Pharmaceutical compositions

Info

Publication number
GB1529463A
GB1529463A GB41844/75A GB4184475A GB1529463A GB 1529463 A GB1529463 A GB 1529463A GB 41844/75 A GB41844/75 A GB 41844/75A GB 4184475 A GB4184475 A GB 4184475A GB 1529463 A GB1529463 A GB 1529463A
Authority
GB
United Kingdom
Prior art keywords
formula
pharmaceutical compositions
pyrans
pylon
urticaria
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
GB41844/75A
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.)
GlaxoSmithKline LLC
Original Assignee
SmithKline 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
Application filed by SmithKline Corp filed Critical SmithKline Corp
Priority to US05/659,307 priority Critical patent/US4122201A/en
Publication of GB1529463A publication Critical patent/GB1529463A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
    • C07D309/38—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms one oxygen atom in position 2 or 4, e.g. pyrones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1529463 Pyrans SMITHKLINE CORP 13 Oct 1975 [11 Nov 1974] 41844/75 Heading C2C [Also in Division A5] Substituted 4,6-dihydroxy-2H-pylon-2-ones of the formula wherein R is C 1-6 straight or branched chain alkyl, the R's being identical are prepared by reacting acetonedicarboxylic acid and an appropriate acid anhydride of formula where R is as defined above. The compounds inhibit the antigen-antibody reaction and are useful in the treatment of allergic diseases such as asthma, rhinitis and urticaria.
GB41844/75A 1974-11-11 1975-10-13 Pharmaceutical compositions Expired GB1529463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/659,307 US4122201A (en) 1974-11-11 1976-02-19 Method of treating asthma with 4,6-dihydroxy-2H-pyran-2-ones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52283774A 1974-11-11 1974-11-11

Publications (1)

Publication Number Publication Date
GB1529463A true GB1529463A (en) 1978-10-18

Family

ID=24082586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41844/75A Expired GB1529463A (en) 1974-11-11 1975-10-13 Pharmaceutical compositions

Country Status (8)

Country Link
AU (1) AU498774B2 (en)
BE (1) BE835266A (en)
CA (1) CA1057661A (en)
DE (1) DE2550647A1 (en)
FR (1) FR2290197A1 (en)
GB (1) GB1529463A (en)
IE (1) IE43594B1 (en)
ZA (1) ZA757067B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4717747A (en) * 1984-07-06 1988-01-05 Lonza Ltd. Stablizer mixtures for vinyl chloride polymer masses

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153720A (en) * 1978-01-19 1979-05-08 Smithkline Corporation 3-Acyl-5-alkyl-2H-pyran-2,4,6-(3H,5H)-triones and their 4-hydroxy tautomers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4717747A (en) * 1984-07-06 1988-01-05 Lonza Ltd. Stablizer mixtures for vinyl chloride polymer masses

Also Published As

Publication number Publication date
BE835266A (en) 1976-05-05
FR2290197A1 (en) 1976-06-04
DE2550647A1 (en) 1976-05-20
ZA757067B (en) 1976-11-24
AU8631275A (en) 1977-05-12
FR2290197B1 (en) 1978-07-28
IE43594B1 (en) 1981-04-08
IE43594L (en) 1976-05-11
AU498774B2 (en) 1979-03-22
CA1057661A (en) 1979-07-03

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Legal Events

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