CH593282A5 - - Google Patents
Info
- Publication number
- CH593282A5 CH593282A5 CH414175A CH414175A CH593282A5 CH 593282 A5 CH593282 A5 CH 593282A5 CH 414175 A CH414175 A CH 414175A CH 414175 A CH414175 A CH 414175A CH 593282 A5 CH593282 A5 CH 593282A5
- Authority
- CH
- Switzerland
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH414175A CH593282A5 (en) | 1975-04-02 | 1975-04-02 | |
DE19752519816 DE2519816A1 (en) | 1975-04-02 | 1975-05-03 | Pyrido-pyrimidine carboxylic acid derivs prepn - by reacting malonodinitrile with orthoformate and amino-pyridine and cyclizing with acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH414175A CH593282A5 (en) | 1975-04-02 | 1975-04-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH593282A5 true CH593282A5 (en) | 1977-11-30 |
Family
ID=4270581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH414175A CH593282A5 (en) | 1975-04-02 | 1975-04-02 |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH593282A5 (en) |
DE (1) | DE2519816A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4507477A (en) * | 1982-09-09 | 1985-03-26 | Riker Laboratories, Inc. | Process for tetrazolyl-pyrimidinone derivatives |
US4474953A (en) * | 1982-09-09 | 1984-10-02 | Riker Laboratories, Inc. | Process and intermediates for the preparation of 3(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-ones |
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1975
- 1975-04-02 CH CH414175A patent/CH593282A5/xx not_active IP Right Cessation
- 1975-05-03 DE DE19752519816 patent/DE2519816A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2519816A1 (en) | 1976-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |