GB1529463A - Pharmaceutical compositions - Google Patents
Pharmaceutical compositionsInfo
- 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
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.
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)
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)
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 |
-
1975
- 1975-10-13 GB GB41844/75A patent/GB1529463A/en not_active Expired
- 1975-11-04 AU AU86312/75A patent/AU498774B2/en not_active Expired
- 1975-11-05 BE BE161598A patent/BE835266A/en not_active IP Right Cessation
- 1975-11-06 IE IE2423/75A patent/IE43594B1/en unknown
- 1975-11-07 CA CA239,152A patent/CA1057661A/en not_active Expired
- 1975-11-10 FR FR7534306A patent/FR2290197A1/en active Granted
- 1975-11-10 ZA ZA757067A patent/ZA757067B/en unknown
- 1975-11-11 DE DE19752550647 patent/DE2550647A1/en not_active Ceased
Cited By (1)
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 |
---|---|
CA1057661A (en) | 1979-07-03 |
IE43594B1 (en) | 1981-04-08 |
BE835266A (en) | 1976-05-05 |
DE2550647A1 (en) | 1976-05-20 |
IE43594L (en) | 1976-05-11 |
FR2290197A1 (en) | 1976-06-04 |
FR2290197B1 (en) | 1978-07-28 |
ZA757067B (en) | 1976-11-24 |
AU8631275A (en) | 1977-05-12 |
AU498774B2 (en) | 1979-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |