NL7213139A - - Google Patents
Info
- Publication number
- NL7213139A NL7213139A NL7213139A NL7213139A NL7213139A NL 7213139 A NL7213139 A NL 7213139A NL 7213139 A NL7213139 A NL 7213139A NL 7213139 A NL7213139 A NL 7213139A NL 7213139 A NL7213139 A NL 7213139A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D335/00—Heterocyclic compounds containing six-membered rings having one sulfur atom as the only ring hetero atom
- C07D335/04—Heterocyclic compounds containing six-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
- C07D335/06—Benzothiopyrans; Hydrogenated benzothiopyrans
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
- C07D311/24—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Pyrane Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4547071A GB1391615A (en) | 1971-09-30 | 1971-09-30 | 4-oxo-4h-1-benzopyran and 4-oxo-4h-1-thia benzopyran derivatives |
| GB5356871 | 1971-11-18 | ||
| GB6020971 | 1971-12-28 | ||
| GB6020871 | 1971-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7213139A true NL7213139A (https=) | 1973-04-03 |
Family
ID=27448982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7213139A NL7213139A (https=) | 1971-09-30 | 1972-09-28 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3857856A (https=) |
| JP (1) | JPS4840773A (https=) |
| DE (1) | DE2247969A1 (https=) |
| FR (1) | FR2154723B1 (https=) |
| GB (1) | GB1391615A (https=) |
| IL (1) | IL40362A0 (https=) |
| NL (1) | NL7213139A (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948954A (en) * | 1973-01-19 | 1976-04-06 | Fisons Limited | Bis-chromone-tetrazole/hydroxamic/carboxylic acids |
| US4018891A (en) * | 1974-07-03 | 1977-04-19 | Richardson-Merrell Inc. | Pharmaceutical compositions and methods of treatment with 1-oxo-1H-2-benzothio pyran-3-carboxylic acid derivatives |
| JPS57185690A (en) * | 1981-05-11 | 1982-11-15 | Kojima Denki Seisakusho Kk | Method of continuously heating with dc direct energization |
| US5171865A (en) * | 1988-02-29 | 1992-12-15 | Sanwa Kagaku Kenkyusho Co., Ltd. | Process for the preparation of optically active 4-oxo-1-benzopyran-2-carboxylic acid derivatives and intermediates thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1049289A (en) * | 1962-08-18 | 1966-11-23 | Benger Lab Ltd | Chromone derivatives and pharmaceutical compositions containing them |
| FR1489749A (fr) * | 1965-03-25 | 1967-07-28 | Fisons Pharmaceuticals Ltd | Procédé de préparation de composés bis-chromonylés et leurs dérivés |
| GB1223690A (en) * | 1967-10-17 | 1971-03-03 | Fisons Pharmaceuticals Ltd | Substituted chromon-2-carboxylic acids |
| GB1291864A (en) * | 1969-02-12 | 1972-10-04 | Fisons Pharmaceuticals Ltd | Mono thiachromone-2-carboxylic acids |
| US3710459A (en) * | 1970-01-27 | 1973-01-16 | Fisons Ltd | Bis(2-carboxy-1-thiachromon-yl and -yloxy)compounds |
| US3720690A (en) * | 1970-04-10 | 1973-03-13 | Fisons Pharmaceuticals Ltd | Pharmaceutically active bis-carboxychromone compounds |
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1971
- 1971-09-30 GB GB4547071A patent/GB1391615A/en not_active Expired
-
1972
- 1972-09-14 IL IL7240362A patent/IL40362A0/xx unknown
- 1972-09-26 US US00292453A patent/US3857856A/en not_active Expired - Lifetime
- 1972-09-28 NL NL7213139A patent/NL7213139A/xx unknown
- 1972-09-29 JP JP47097306A patent/JPS4840773A/ja active Pending
- 1972-09-29 DE DE19722247969 patent/DE2247969A1/de active Pending
- 1972-09-29 FR FR7234491A patent/FR2154723B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2154723A1 (https=) | 1973-05-11 |
| JPS4840773A (https=) | 1973-06-15 |
| US3857856A (en) | 1974-12-31 |
| GB1391615A (en) | 1975-04-23 |
| FR2154723B1 (https=) | 1975-10-31 |
| DE2247969A1 (de) | 1973-04-05 |
| IL40362A0 (en) | 1972-11-28 |