WO2002018387A1 - Antikonvulsiv wirkende 2,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one und verfahren zu deren darstellung - Google Patents
Antikonvulsiv wirkende 2,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one und verfahren zu deren darstellung Download PDFInfo
- Publication number
- WO2002018387A1 WO2002018387A1 PCT/EP2001/009811 EP0109811W WO0218387A1 WO 2002018387 A1 WO2002018387 A1 WO 2002018387A1 EP 0109811 W EP0109811 W EP 0109811W WO 0218387 A1 WO0218387 A1 WO 0218387A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dihydro
- pyrazolo
- pyrimidin
- methyl
- phenyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/08—Antiepileptics; Anticonvulsants
Definitions
- the invention relates to 2,5-dihydro-pyrazolo [3 ) 4-d] pyrimidin-4-ones and their tautomers which have an Ar (alkyl) radical in the 5-position and a hydrogen or an Ar (alkyl) in the 2-position ) -Rest contain, processes for their preparation and their use as medicines, in particular for the treatment of epilepsy of various forms.
- Pyrazolo [3,4-d] pyrimidines are pharmacologically interesting compounds due to their structural similarities to adenine.
- Known anticonvulsants have the disadvantage, on the one hand, that undesirable side effects such as neurotoxicity and idiosyncrasies occur and, on the other hand, they are not effective in certain forms of epilepsy.
- the invention is therefore based on the object of providing compounds with favorable pharmacological properties which are anticonvulsant act and can be used as a medicine, in particular for the treatment of epilepsy.
- these new compounds are 2,5-dihydropyrazolo [3,4-dlpyrimidin-4-ones of the general formula 1
- R CH 2 -phenyl, in which phenyl can be substituted one or more times with halogen,
- CrC 3 -alkyl straight-chain or branched, optionally mono- or polysubstituted with halogen -CC 3 -alkyloxy, straight-chain or branched
- R 1 H; CC ⁇ alkyl; phenyl; CH 2 -phenyl, in which phenyl may optionally be substituted by halogen; CH 2 pyridinyl; tetrahydrofuranylmethyl
- R 2 H, methyl, with the exception of the compound in which R is CH 2 phenyl and Ri is hydrogen.
- Examples of compounds of general formula 1 are:
- Tautomere is based on known 3-aminopyrazole-4-carboxylic acid esters (compounds of general formula 2) or 3-aminopyrazole-4-carboxamides (compounds of general formula 3) [P. Schmidt, J.
- R 1 H, -CC 4 alkyl; phenyl; CH 2 -phenyl, in which phenyl may optionally be substituted by halogen; CH 2 pyridinyl; Tetrahydrofuranylmethyl mean and Et stands for an alkyl radical.
- the compounds according to the invention as well as the compound 5-benzyl-2,5-dihydro-pyrazolo [3,4-d] pyrimidin-4-one already described or their pharmaceutically usable salts are suitable for the preparation of pharmaceutical compositions.
- the pharmaceutical compositions or medicaments can contain one or more of the compounds according to the invention.
- the usual pharmaceutical carriers and auxiliary substances can be used for the production of the pharmaceutical preparations.
- the drugs can be administered parenterally (e.g. intravenously, intramuscularly, subcutaneously) or orally.
- the application forms can be prepared by methods which are generally known and customary in pharmaceutical practice.
- the compounds according to the invention have strong anticonvulsant effects, as does the compound 5-benzyl-2,5-dihydropyrazolo [3,4-d] pyrimidin-4-one already described.
- the ED50 (po) was 18 mg in the rat in maximum electroshock / kg and the NT 50 > 500 mg / kg determined for neurotoxicity. This compound is also effective in cramp models with bicuculline and picrotoxin as the cramp-causing cause.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Pain & Pain Management (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01960709A EP1311510A1 (de) | 2000-08-26 | 2001-08-24 | Antikonvulsiv wirkende 2,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one und verfahren zu deren darstellung |
KR10-2003-7002753A KR20030036734A (ko) | 2000-08-26 | 2001-08-24 | 항경련 작용을 하는2,5-디하이드로-피라졸로[3,4-d]피리미딘-4-온 및 이의제조방법 |
JP2002523902A JP2004507547A (ja) | 2000-08-26 | 2001-08-24 | 抗痙攣性の作用を有する2,5−ジヒドロ−ピラゾロ[3,4−d]ピリミジン−4−オンおよび該化合物の製造方法 |
BR0113517-1A BR0113517A (pt) | 2000-08-26 | 2001-08-24 | 2,5-dihidro-pirazolo[3,4-d] pirimidin-4-onas de efeito anticonvulsivo e processos para preparação dos mesmos |
AU2001282124A AU2001282124A1 (en) | 2000-08-26 | 2001-08-24 | 2,5-dihydro-pyrazolo(3,4-D)pyrimidin-4-ones with an anticonvulsive action and methods for producing the same |
CA002420288A CA2420288A1 (en) | 2000-08-26 | 2001-08-24 | 2,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-ones with an anticonvulsive action and methods for producing the same |
EEP200300078A EE200300078A (et) | 2000-08-26 | 2001-08-24 | 2,5-dihüdropürasolo-[3,4-D]pürimidin-4-oonid, nende saamine ja kasutamine epilepsiaravimite valmistamiseks ning neid sisaldav farmatseutiline kompositsioon |
IL15407001A IL154070A0 (en) | 2000-08-26 | 2001-08-24 | 2,5-dihydro-pyrazolo [3,4-d] pyrimdin-4-ones with an anticonvulsive action and methods for producing the same |
NO20030687A NO20030687D0 (no) | 2000-08-26 | 2003-02-12 | Antikonvulsiv virkende 2,5-dihydro-pyrazolo[3,4-d]pyrimidin-4- oner og fremgangsmåter for deres fremstilling |
BG107561A BG107561A (en) | 2000-08-26 | 2003-02-14 | 2,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-ones with anticonvulsive action and method for producing the same |
HR20030226A HRP20030226A2 (en) | 2000-08-26 | 2003-03-24 | 2,5-DIHYDRO-PYRAZOLO[3,4-d]PYRIMIDIN-4-ONES WITH AN ANTICONVULSIVE ACTION AND METHODS FOR PRODUCING THE SAME |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10042092A DE10042092A1 (de) | 2000-08-26 | 2000-08-26 | Antikonvulsiv wirkende 2,5-Dihydro-pyrazolo(3,4-d)pyrimidin-4-one und Verfahren zu deren Darstellung |
DE10042092.3 | 2000-08-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002018387A1 true WO2002018387A1 (de) | 2002-03-07 |
Family
ID=7653967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/009811 WO2002018387A1 (de) | 2000-08-26 | 2001-08-24 | Antikonvulsiv wirkende 2,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one und verfahren zu deren darstellung |
Country Status (16)
Country | Link |
---|---|
US (1) | US20030186997A1 (de) |
EP (1) | EP1311510A1 (de) |
JP (1) | JP2004507547A (de) |
KR (1) | KR20030036734A (de) |
CN (1) | CN1449397A (de) |
AU (1) | AU2001282124A1 (de) |
BG (1) | BG107561A (de) |
BR (1) | BR0113517A (de) |
CA (1) | CA2420288A1 (de) |
DE (1) | DE10042092A1 (de) |
EE (1) | EE200300078A (de) |
HR (1) | HRP20030226A2 (de) |
IL (1) | IL154070A0 (de) |
NO (1) | NO20030687D0 (de) |
RU (1) | RU2003108258A (de) |
WO (1) | WO2002018387A1 (de) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6054460A (en) * | 1998-06-22 | 2000-04-25 | Arzneimittelwerk Dresden Gmbh | Anticonvulsive and antiallergic/antiasthmatic pyrazolo-[3,4-d]pyrimidines, and process for preparing |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3165520A (en) * | 1965-01-12 | Certificate of correction | ||
US3939161A (en) * | 1973-10-29 | 1976-02-17 | Abbott Laboratories | 1,3-Dimethyl- 1H-pyrazolo(4,3-D) pyrimidine-7 (6H)-ones |
US5721356A (en) * | 1989-09-15 | 1998-02-24 | Gensia, Inc. | Orally active adenosine kinase inhibitors |
US5763596A (en) * | 1989-09-15 | 1998-06-09 | Metabasis Therapeutics, Inc. | C-4' modified adenosine kinase inhibitors |
EP0729758A3 (de) * | 1995-03-02 | 1997-10-29 | Pfizer | Pyrazolopyrimidine und Pyrrolopyrimidine zur Behandlung von neuronalen und anderen Krankheiten |
-
2000
- 2000-08-26 DE DE10042092A patent/DE10042092A1/de not_active Withdrawn
-
2001
- 2001-08-24 EE EEP200300078A patent/EE200300078A/xx unknown
- 2001-08-24 EP EP01960709A patent/EP1311510A1/de not_active Withdrawn
- 2001-08-24 CN CN01814655A patent/CN1449397A/zh active Pending
- 2001-08-24 CA CA002420288A patent/CA2420288A1/en not_active Abandoned
- 2001-08-24 IL IL15407001A patent/IL154070A0/xx unknown
- 2001-08-24 KR KR10-2003-7002753A patent/KR20030036734A/ko not_active Application Discontinuation
- 2001-08-24 US US10/333,504 patent/US20030186997A1/en not_active Abandoned
- 2001-08-24 BR BR0113517-1A patent/BR0113517A/pt not_active Application Discontinuation
- 2001-08-24 RU RU2003108258/04A patent/RU2003108258A/ru not_active Application Discontinuation
- 2001-08-24 WO PCT/EP2001/009811 patent/WO2002018387A1/de not_active Application Discontinuation
- 2001-08-24 JP JP2002523902A patent/JP2004507547A/ja active Pending
- 2001-08-24 AU AU2001282124A patent/AU2001282124A1/en not_active Abandoned
-
2003
- 2003-02-12 NO NO20030687A patent/NO20030687D0/no unknown
- 2003-02-14 BG BG107561A patent/BG107561A/xx unknown
- 2003-03-24 HR HR20030226A patent/HRP20030226A2/hr not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6054460A (en) * | 1998-06-22 | 2000-04-25 | Arzneimittelwerk Dresden Gmbh | Anticonvulsive and antiallergic/antiasthmatic pyrazolo-[3,4-d]pyrimidines, and process for preparing |
Non-Patent Citations (1)
Title |
---|
E.O.SOCHNEVA, N.P. SOLOV'EVA, V.G. GRANIK: "Synthesis of 1,8-naphthpyridine and pyrido[2,3-d]pyrimidine", KHIM. GETEROSIKL. SOEDIN., vol. 12, 1978, pages 1359 - 1363, XP002181464 * |
Also Published As
Publication number | Publication date |
---|---|
BG107561A (en) | 2003-10-31 |
KR20030036734A (ko) | 2003-05-09 |
CA2420288A1 (en) | 2002-03-07 |
NO20030687L (no) | 2003-02-12 |
US20030186997A1 (en) | 2003-10-02 |
NO20030687D0 (no) | 2003-02-12 |
AU2001282124A1 (en) | 2002-03-13 |
DE10042092A1 (de) | 2002-03-07 |
BR0113517A (pt) | 2003-07-29 |
CN1449397A (zh) | 2003-10-15 |
RU2003108258A (ru) | 2005-01-27 |
HRP20030226A2 (en) | 2003-06-30 |
EP1311510A1 (de) | 2003-05-21 |
EE200300078A (et) | 2004-12-15 |
JP2004507547A (ja) | 2004-03-11 |
IL154070A0 (en) | 2003-07-31 |
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