BE469427A - - Google Patents
Info
- Publication number
- BE469427A BE469427A BE469427DA BE469427A BE 469427 A BE469427 A BE 469427A BE 469427D A BE469427D A BE 469427DA BE 469427 A BE469427 A BE 469427A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- C07D311/42—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
- C07D311/44—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3
- C07D311/46—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring
- C07D311/48—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring with two such benzopyran radicals linked together by a carbon chain
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS2482512X | 1946-08-31 | ||
| GB3687646A GB632805A (en) | 1946-12-13 | 1946-12-13 | Process for the production of compounds reducing the prothrombin level in the blood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE469427A true BE469427A (US06262066-20010717-C00315.png) |
Family
ID=32231742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE469427D BE469427A (US06262066-20010717-C00315.png) | 1946-08-31 |
Country Status (5)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2810730A (en) * | 1948-12-30 | 1957-10-22 | Fucik Karel | Process for making esters of bis(4-hydroxycoumarin-3-yl) acetic acid |
-
0
- BE BE469427D patent/BE469427A/xx unknown
- NL NL65053D patent/NL65053C/xx active
-
1946
- 1946-11-06 CH CH280073D patent/CH280073A/de unknown
- 1946-11-06 CH CH280074D patent/CH280074A/de unknown
- 1946-11-06 CH CH268684D patent/CH268684A/de unknown
- 1946-11-08 FR FR940655D patent/FR940655A/fr not_active Expired
-
1947
- 1947-02-14 US US728720A patent/US2482512A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH280074A (de) | 1951-12-31 |
| CH268684A (de) | 1950-05-31 |
| CH280073A (de) | 1951-12-31 |
| US2482512A (en) | 1949-09-20 |
| NL65053C (US06262066-20010717-C00315.png) | |
| FR940655A (fr) | 1948-12-20 |
