BE722750A - - Google Patents
Info
- Publication number
- BE722750A BE722750A BE722750DA BE722750A BE 722750 A BE722750 A BE 722750A BE 722750D A BE722750D A BE 722750DA BE 722750 A BE722750 A BE 722750A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/12—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains three hetero rings
- C07D493/14—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1643407 | 1967-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE722750A true BE722750A (xx) | 1969-04-01 |
Family
ID=5684310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE722750D BE722750A (xx) | 1967-12-22 | 1968-10-23 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3755377A (xx) |
| AT (1) | AT281806B (xx) |
| BE (1) | BE722750A (xx) |
| FR (1) | FR96051E (xx) |
| SE (1) | SE357741B (xx) |
-
0
- FR FR171622A patent/FR96051E/fr not_active Expired
-
1968
- 1968-10-23 BE BE722750D patent/BE722750A/xx unknown
- 1968-12-17 US US00796631A patent/US3755377A/en not_active Expired - Lifetime
- 1968-12-18 AT AT1231968A patent/AT281806B/de not_active IP Right Cessation
- 1968-12-23 SE SE17780/68A patent/SE357741B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE357741B (xx) | 1973-07-09 |
| AT281806B (de) | 1970-06-10 |
| US3755377A (en) | 1973-08-28 |
| FR96051E (fr) | 1972-05-19 |