BE651730A - - Google Patents
Info
- Publication number
- BE651730A BE651730A BE651730DA BE651730A BE 651730 A BE651730 A BE 651730A BE 651730D A BE651730D A BE 651730DA BE 651730 A BE651730 A BE 651730A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D475/00—Heterocyclic compounds containing pteridine ring systems
- C07D475/02—Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
- C07D241/10—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D241/14—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hetero atoms or 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 to ring carbon atoms
- C07D241/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D241/26—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals with nitrogen atoms directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23423062A | 1962-10-30 | 1962-10-30 | |
| US313315A US3313813A (en) | 1962-10-30 | 1963-10-07 | (3-amino-5, 6-disubstituted-pyrazinoyl) guanidines |
| US35604264A | 1964-03-31 | 1964-03-31 | |
| US356038A US3290311A (en) | 1964-03-31 | 1964-03-31 | Derivatives of 3, 5-diamino-6-chloropyrazinoic acid esters and a process for making them |
| US356039A US3316266A (en) | 1964-03-31 | 1964-03-31 | 3-aminopyrazinoic acid derivatives and process for their preparation |
| US35725664A | 1964-04-03 | 1964-04-03 | |
| US509217A US3410850A (en) | 1962-10-30 | 1965-11-22 | 4h-pyrazino-[2, 3d][1, 3]oxazin-4-ones and their preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE651730A true BE651730A (da) | 1965-02-12 |
Family
ID=26999580
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE651729D BE651729A (da) | 1962-10-30 | 1964-08-12 | |
| BE651730D BE651730A (da) | 1962-10-30 | 1964-08-12 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE651729D BE651729A (da) | 1962-10-30 | 1964-08-12 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3410850A (da) |
| BE (2) | BE651729A (da) |
| CH (2) | CH481939A (da) |
| DK (1) | DK142199B (da) |
| FR (1) | FR95657E (da) |
| NL (1) | NL6409717A (da) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3549627A (en) * | 1968-04-05 | 1970-12-22 | American Home Prod | 2,6-disubstituted-4h-pyrimido(5,4-d)(1,3)oxazin-4-0nes |
| US3549633A (en) * | 1968-11-20 | 1970-12-22 | Merck & Co Inc | Process for preparation of 1-h-imidazo (4,5-b)pyrazin-2-ones |
| US4140776A (en) * | 1977-09-16 | 1979-02-20 | Merck & Co., Inc. | N-pyrazinecarbonyl-N'-acylguanidines |
-
1964
- 1964-08-12 BE BE651729D patent/BE651729A/xx unknown
- 1964-08-12 BE BE651730D patent/BE651730A/xx unknown
- 1964-08-21 NL NL6409717A patent/NL6409717A/xx unknown
- 1964-08-25 FR FR986159A patent/FR95657E/fr not_active Expired
- 1964-08-25 CH CH1111464A patent/CH481939A/de not_active IP Right Cessation
- 1964-10-07 DK DK494664AA patent/DK142199B/da not_active IP Right Cessation
- 1964-12-18 CH CH1635164A patent/CH469721A/de unknown
-
1965
- 1965-11-22 US US509217A patent/US3410850A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DK142199B (da) | 1980-09-22 |
| CH469721A (de) | 1969-03-15 |
| NL6409717A (da) | 1965-10-04 |
| FR95657E (fr) | 1971-04-16 |
| US3410850A (en) | 1968-11-12 |
| CH481939A (de) | 1969-11-30 |
| DK142199C (da) | 1981-02-16 |
| BE651729A (da) | 1965-02-12 |