WO2002050044A1 - Novel 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient - Google Patents
Novel 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient Download PDFInfo
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- WO2002050044A1 WO2002050044A1 PCT/HU2001/000151 HU0100151W WO0250044A1 WO 2002050044 A1 WO2002050044 A1 WO 2002050044A1 HU 0100151 W HU0100151 W HU 0100151W WO 0250044 A1 WO0250044 A1 WO 0250044A1
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Classifications
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
- C07D243/02—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 2
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/08—Drugs for disorders of the alimentary tract or the digestive system for nausea, cinetosis or vertigo; Antiemetics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P13/00—Drugs for disorders of the urinary system
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- A—HUMAN NECESSITIES
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- A61P25/02—Drugs for disorders of the nervous system for peripheral neuropathies
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- A61P25/04—Centrally acting analgesics, e.g. opioids
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- A61P25/08—Antiepileptics; Anticonvulsants
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/14—Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
- A61P25/16—Anti-Parkinson drugs
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P25/18—Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
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- A—HUMAN NECESSITIES
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- A61P25/22—Anxiolytics
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- 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
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P25/30—Drugs for disorders of the nervous system for treating abuse or dependence
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- A61P9/00—Drugs for disorders of the cardiovascular system
Definitions
- the invention refers to novel 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient. Due to their non-competitive AMPA antagonist effect, the novel compounds have antispasmodic, muscle relaxant and neuroprotective activities.
- the most important stimulant neurotransmitter of the central nervous system consists of glutamic acid.
- the neurotransmitter receptors of glutamic acid can be divided into two groups: ionotropic receptors (i.e. receptors connected with an ionic channel) and metabotropic receptors.
- the ionotropic receptors take part in nearly each process of the central nervous system, for example in the processes of learning, in any type of memory, in processes accompanied by acute and chronic neuro-degeneration (or cellular destruction).
- the ionotropic receptors have role in pain sense, motoric function, urination reflex and cardiovascular homeostasis, too.
- the receptors of AMPA/kainate type are, primarily, responsible for the so called fast synaptic processes, while the NMDA receptors regulate the slow synaptic processes prepared by the fast synaptic ones.
- antagonists of the AMPA kainate receptors may have an indirect influence on the function of the NMDA receptors. Consequently, several processes of the central nervous system and the whole organism can be regulated by the antagonists of the AMPA/kainate receptors.
- AMPA/kainate receptor antagonists Two types exist: competitive and non-competitive antagonists. Because of the different character of inhibition, non-competitive antagonists are preferred to the competitive antagonists.
- the first representative of the non-competitive antagonists was 1-(4- aminophenyl)-4-methyI-7,8-methylenedioxy-5H-2,3- benzodiazepine synthetized about 15 years ago. Since the discovery of this compound numerous 2,3-benzodiazepines having non-competitive AMPA/kainate effect have been prepared [Donevan, S.D. et al., J. Pharmacol. Exp. Ther., 271 , 25-29 (1994); Vizi, E.S. et al., CNS Drug Reviews, 2, 91-126 (1996)].
- 2,3-benzodiazepines having non- competitive antagonist effect on the AMPA kainate receptor is extremely various. They can be employed as a neuroprotective agent in case of different acute and chronic symptoms accompanied by neurodegeneration (Parkinson's disease, Alzheimer's disease, stroke etc.), furthermore for the improvement of many symptoms e.g. in epilepsy, spasmolysis, relief of pain, influencing emesis, schizophrenia, migraine and also as an anxiolytic agent [Tarnawa, I. and Vizi, E.S., Restorative Neurol. Neurosci., 13, 41-57 (1998)].
- the known compounds have antispasmodic, muscle relaxant and neuroprotective activity and can be used for the treatment of neurological and psychiatric disorders.
- the aim of the invention is to find 2,3-benzodiazepine derivatives characterized by- decreased rate of acetylation since in this case human beings of fast and slow acetylator phenotype, respectively, can be treated with essentially the same dose of active ingredient.
- X represents a hydrogen atom, a chloro atom or a methoxy group
- Y stands for a hydrogen atom or a halo atom
- Z means a methyl group or a chloro atom
- R is a C ⁇ - 4 alkyj group or a group of the formula -NR 1 R 2 , wherein
- R 1 and R 2 represent, independently, a hydrogen atom, a C ⁇ - alkyl group, a C 1 -- 1 alkoxy group or a C 3 - 6 cycloalkyl group, and pharmaceutically suitable acid addition salts thereof.
- Liver slices of Wistar rats were incubated in oxigenized Krebs- Ringer solution at 37 °C in the presence of 50 ⁇ M of 2,3- benzodiazepine derivative examined. 0.5 ml aliquots were taken at the beginning of the examination, then after 30 and 60 minutes. Plasma proteins were precipitated with perchloric acid and, after alkalization, the 2,3-benzodiazepine derivatives were extracted with chloroform. The chloroform solutions were evaporated to dryness, the residue was dissolved in the corresponding eluent.
- the 2,3-benzodiazepine derivative used and the N-acetyl metabolite thereof were determined by high pressure liquid chromatography (Beckman System Gold HPLC, C-18 reversed-phase column) using an UV detector (at 240 nm). Different eluents were used for the optimal separation of the compounds. In case of the compound according to Example 1 and the corresponding 1-(4-atnino-phenyl) analogue, the eluent consisted of a mixture of 50 % of 2 mM heptafluoro- butyric acid, 25 % of methanol and 25 % of acetonitrile.
- the eluent was a mixture of 50 % of 2 mM heptafluorobutyric acid, 20 % of methanol and 30 % of acetonitrile.
- the eluent consisted of a mixture of 50 % of 2 mM heptafluorobutyric acid and 50 % of acetonitrile.
- the percentage of N-acetyl metabolite content of the sample taken at a certain time was calculated by dividing the hundredfold of the peak area of the metabolite with the sum of the peak areas of the 2,3-benzodiazepine derivative used and the N-acetyl metabolite. The results obtained are shown in Table 1 in which the concentrations determined after 0, 30 and 60 minutes are indicated.
- the examination was carried out on groups consisting of 10 male NMRI mice weighing 20-25 g.
- the compounds to be examined were dissolved in a mixture of 5 volumes of 5M aqueous hydrochloric acid and 95 volumes of water, then the pH value of the solution was adjusted to 3 by the addition of 1 M aqueous sodium hydroxide solution.
- the solution obtained was administered intraperitoneally in a volume of 10 mi/kg.
- Each compound was tested at four increasing dose levels, and a further group of animals was treated only with the vehicle (the latter was the control group).
- 30 minutes after treatment all mice received an intravenous injection of saturated aqueous magnesium chloride solution in a volume of 5 ml/kg. This injection caused an immediate cardiac arrest and complete cerebral ischemia.
- the increase in survival time i.e.
- mice were anaesthetized by administering 60 mg/kg of pentobarbital sodium [sodium 5-ethyl-5-(1-methylbutyl)barb ' ⁇ turate] intraperitoneally.
- pentobarbital sodium sodium 5-ethyl-5-(1-methylbutyl)barb ' ⁇ turate
- TL11 M2C50-PXT or TA10TA-F40 type radiotelemetry transmitters were implanted into the peritoneal cavity of the animals. The transmitters permitted continuous monitoring of the core body temperature.
- the rats were treated with an antibiotic (benzathine-benzylpenicillin was administered in a dose of 1 ml/kg i.m.).
- the compounds to be examined were dissolved in a mixture of 5 volumes of 5M aqueous hydrochloric acid and 95 volumes of water, then the pH value of the solution was adjusted to 3 by the addition of 1M aqueous sodium hydroxide solution.
- the solution obtained was administered intraperitoneally in a volume of 10 ml/kg.
- Radio signals emitted by the transmitters were detected by RLA1000 or RLA2000 type receivers placed under each cage.
- Data were collected and saved by a Dataquest IV computerized data acquisition system.
- the computer was set to sample body temperature for 10 seconds in every second minute. Mean values for 30 min. periods over the whole day were calculated running the "sort utility" of the Dataquest IV system.
- the upper and lower limits of the evaluating routine were set to exclude biologically improbable values. Individual body temperature curves were averaged for the 6 animals.
- Peak effect was measured as the maximum decrease in body temperature in comparison to the last value prior to treatment (control value).
- the PE values obtained are summarized in Table 3.
- duration of action (D) of the compounds was determined. This is the time interval from treatment to return of body temperature to the control level. Values of D obtained are shown in Table 4.
- the compounds of the formula I have antispasmodic, muscle relaxant and neuroprotective activities, and can be potentially used in the treatment or prevention of any disease and symptom wherein the inhibition of the stimulant amino acid receptors is beneficial.
- the compounds of the invention can be advantageously employed in any case wherein the AMPA/kainate non-competitive 2,3-benzodiazepine type antagonists are efficient, for example in the following diseases: as a neuroprotective agent in symptoms accompanied by acute and chronic neurodegeneration, especially Parkinson's disease, Alzheimer's disease, amyotrophic lateral sclerosis, stroke, acute head injury, furthermore for improving numerous symptoms for example in epilepsy, spasmolysis, relief of pain, in influencing emesis, in schizophrenia, in case of migraine and urination problems as well as for relieving the symptoms of medicine deprivation.
- halo atom especially a fluoro atom, chloro atom, bromo atom or iodo atom, preferably a chloro atom is meant.
- a C ⁇ - alkyl group is a methyl group, ethyl group, isopropyl group, n-propyl group, n-butyl group, sec-butyl group, isobutyl group or tert.-butyl group, preferably a methyl group or ethyl group.
- Ci- alkoxy group is, in general, a methoxy group, ethoxy group, isopropoxy group, n-propoxy group or n-butoxy group, preferably a methoxy group.
- a C 3 -6 cycloalkyl group is, mostly, a cyclopropyl group, cyclopentyl group or cyclohexyl group.
- the pharmaceutically suitable acid addition salts of the 2,3- benzodiazepine derivatives of the formula I are the non-toxic acid addition salts of the compounds formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid etc. or organic acids such as formic acid, acetic acid, fumaric acid, lactic acid, tartaric acid, succinic acid, citric acid, benzenesulfonic acid, p-toluenesulfonic acid, methane-sulfonic acid etc.
- inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid etc.
- organic acids such as formic acid, acetic acid, fumaric acid, lactic acid, tartaric acid, succinic acid, citric acid, benzenesulfonic acid, p-toluenesulfonic acid, methane-sulfonic acid etc.
- the compounds of the formula I can be present in the form of optically active isomers and mixtures thereof. In the presence of certain substituents, geometrical isomerism or tautomerism may exist in the compounds of the formula I.
- the invention includes all the isomers of the 2,3-benzodiazepine derivatives of the formula I and any mixtures thereof.
- Preferred 2,3-benzodiazepine derivatives are those wherein in formula I
- X represents a chloro atom
- Y stands for a hydrogen atom, a chloro atom or a bromo atom
- R means a C-*. alkyl group
- Z is a methyl group or a chloro atom, and pharmaceutically suitable acid addition salts thereof.
- 2,3-benzodiazepine derivatives are those wherein in formula I X means a chloro atom,
- Y represents a hydrogen atom or a chloro atom
- R stands for a methyl group
- Z is a methyl group or a chloro atom, and pharmaceutically suitable acid addition salts thereof.
- the compounds of the formula I can be prepared by the processes known from Hungarian Patent Application No. P 97 00688.
- a compound of the formula I, wherein the amino group is replaced by a nitro group is reduced in a manner known perse, for example with tin(ll) chloride, sodium dithionite or by catalytical hydrogenation in the presence of a Raney nickel, palladium or platina catalyst using gaseous hydrogen, hydrazine, hydrazine hydrate, formic acid, a trialkylammonium formate or a sodium formate as the hydrogen source.
- the compound of the formula I, wherein the amino group is replaced by a nitro group can be also prepared by the processes known from the Hungarian Patent Application No. P 97 00688.
- the invention refers to a pharmaceutical composition containing a 2,3-benzodiazepine derivative of the formula I or a pharmaceutically suitable acid addition salt thereof as the active ingredient and one or more conventional carrier(s).
- the pharmaceutical composition of the invention contains, in general, 0.1 to 95 per cent by mass, preferably 1 to 50 per cent by mass, suitably 5 to 30 per cent by mass of the active ingredient.
- the pharmaceutical composition of the invention is suitable for peroral, parenteral or rectal administration or for local treatment, and can be solid or liquid.
- the solid pharmaceutical compositions suitable for peroral administration may be powders, capsules, tablets, film-coated tablets, microcapsules etc., and can comprise binding agents such as gelatine, sorbitol, poly(vinylpyrrolidone) etc.; filling agents such as lactose, glucose, starch, calcium phosphate etc.; auxiliary substances for tabletting such as magnesium stearate, talc, poly(ethylene glycol), silica etc.; wetting agents such as sodium laurylsulfate etc. as the carrier.
- binding agents such as gelatine, sorbitol, poly(vinylpyrrolidone) etc.
- filling agents such as lactose, glucose, starch, calcium phosphate etc.
- auxiliary substances for tabletting such as magnesium stearate, talc, poly(ethylene glycol), silica etc.
- wetting agents such as sodium laurylsulfate etc. as the carrier.
- the liquid pharmaceutical compositions suitable for peroral administration may be solutions, suspensions or emulsions and can comprise e.g. suspending agents such as gelatine, carboxymethylcellulose etc.; emulsifiers such as sorbitane monooleate etc.; solvents such as water, oils, glycerol, propylene glycol, ethanol etc.; preservatives such as methyl p- hydroxybenzoate etc. as the carrier.
- suspending agents such as gelatine, carboxymethylcellulose etc.
- emulsifiers such as sorbitane monooleate etc.
- solvents such as water, oils, glycerol, propylene glycol, ethanol etc.
- preservatives such as methyl p- hydroxybenzoate etc. as the carrier.
- compositions suitable for parenteral administration consist of sterile solutions of the active ingredient, in general. Dosage forms listed above as well as other dosage forms are known perse, see e.g. Remington's Pharmaceutical Sciences, 18th Edition, Mack Publishing Co., Easton, USA (1990).
- the pharmaceutical composition contains dosage unit, in general.
- a typical dose for adult patients amounts to 0.1 to 1000 mg of the compound of the formula I or a pharmaceutically suitable acid addition salt thereof calculated for 1 kg body weight, daily.
- the daily dose can be administered in one or more portions.
- the actual dosage depends on many factors and is determined by the doctor.
- the pharmaceutical composition is prepared by admixing a compound of the formula I or a pharmaceutically suitable acid addition salt thereof to one or more carrier(s), and converting the mixture obtained to a pharmaceutical composition in a manner known per se.
- Useful methods are known from the literature, e.g. Remington's Pharmaceutical Sciences mentioned above.
- a preferred pharmaceutical composition of the invention contains a 2,3-benzodiazepine derivative of the formula I, wherein
- X represents a chloro atom
- Y stands for a hydrogen atom, a chloro atom or a bromo atom
- R means a C-*- 4 alkyl group
- Z is a methyl group or a chloro atom, or a pharmaceutically suitable acid addition salt thereof as the active ingredient.
- the active ingredient of an especially preferred pharmaceutical composition of the invention is a 2,3-benzodiazepine derivative of the formula I, wherein
- X means a chloro atom
- Y represents a hydrogen atom or a chloro atom
- R stands for a methyl group
- Z is a methyl group or a chloro atom, or a pharmaceutically suitable acid addition salt thereof.
- the invention refers to the use of the compounds of the formula I or pharmaceutically suitable acid addition salts thereof for the preparation of a pharmaceutical composition of anxiolytic effect or suitable for the treatment of symptoms accompanied by acute and chronic neurodegeneration, especially Parkinson's disease, Alzheimer's disease, amyotrophic lateral sclerosis, stroke, acute head injury, epilepsy and schizophrenia, for spasmolysis, relief of pain, influencing emesis, against migraine, for the treatment of urination problems or for relieving the symptoms of medicine deprivation.
- the invention refers to a process for the treatment of diseases and symptoms listed above in which a therapeutically effective amount of a 2,3-benzodiazepine derivative of the formula I or a pharmaceutically suitable acid addition salt thereof is administered to a patient being in need of the treatment.
- the reaction mixture is stirred for further 45 minutes, the catalyst is filtered, washed with dichloromethane, the filtrate is evaporated, and the residue is rubbed with 50 cm 3 of water to obtain solid matter.
- the crude product is purified by chromatography over a column containing silica gel and using a mixture of ethyl acetate and hexane, then the product is recrystallized from acetonitrile. Thus, 1.99 g (56 %) of the title compound are obtained in the form of pale yellow solids melting at 106-108 °C.
- the reaction mixture is stirred at 100 °C for 1 hour, the catalyst is filtered, the filtrate is evaporated, and the residue is rubbed with 50 cm 3 of water to obtain solid matter.
- the crude product is purified by chromatography over a column containing silica gel and using a mixture of ethyl acetate and hexane, then the product is recrystallized from acetonitrile.
- 1.6 g (47 %) of the title compound are obtained in the form of cream coloured solids melting at 169-171 °C.
- the reaction mixture is stirred at 90 °C for 0.5 hours, the catalyst is filtered, the filtrate is evaporated, and the residue is rubbed with 50 cm 3 of water to obtain solid matter.
- the crude product is purified by chromatography over a column containing silica gel and using a mixture of ethyl acetate and hexane, then the product is recrystallized from ethanol. Thus, 1.1 g (30 %) of the title compound are obtained in the form of white solids melting at 152-155 °C.
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- Pain & Pain Management (AREA)
- Hospice & Palliative Care (AREA)
- Heart & Thoracic Surgery (AREA)
- Urology & Nephrology (AREA)
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Abstract
Description
Claims
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SK788-2003A SK286620B6 (en) | 2000-12-21 | 2001-12-19 | 2,3-Benzodiazepine derivatives, the use thereof and pharmaceutical compositions containing the same as the active ingredient |
AU2002217356A AU2002217356A1 (en) | 2000-12-21 | 2001-12-19 | Novel 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient |
DE60104448T DE60104448T2 (en) | 2000-12-21 | 2001-12-19 | "NEW 2,3-BENZODIAZEPINE DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS CONTAINING THESE COMPOUNDS AS AN ACTIVE SUBSTANCE" |
EA200300691A EA005867B1 (en) | 2000-12-21 | 2001-12-19 | Novel 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient |
AT01271364T ATE271548T1 (en) | 2000-12-21 | 2001-12-19 | ßNEW 2,3-BENZODIAZEPINE DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS CONTAINING THESE COMPOUNDS AS THE ACTIVE INGREDIENTS |
CA2431761A CA2431761C (en) | 2000-12-21 | 2001-12-19 | Novel 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient |
ROA200300539A RO121268B1 (en) | 2000-12-21 | 2001-12-19 | 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as active ingredient |
UA2003076874A UA74615C2 (en) | 2000-12-21 | 2001-12-19 | 2,3-benzodiazepine derivatives and pharmaceutical compositions containing these derivatives as active ingredient |
JP2002551541A JP4201252B2 (en) | 2000-12-21 | 2001-12-19 | Novel 2,3-benzodiazepine derivative and pharmaceutical composition containing the derivative as an active ingredient |
US10/450,898 US7189711B2 (en) | 2000-12-21 | 2001-12-19 | 2, 3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient |
EP01271364A EP1351942B1 (en) | 2000-12-21 | 2001-12-19 | Novel 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient |
BG107932A BG66199B1 (en) | 2000-12-21 | 2003-06-20 | 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUP0004994 | 2000-12-21 | ||
HU0004994A HU225100B1 (en) | 2000-12-21 | 2000-12-21 | 2,3-benzodiazepine derivatives, pharmaceutical compositions containing them and their use |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002050044A1 true WO2002050044A1 (en) | 2002-06-27 |
Family
ID=89978876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/HU2001/000151 WO2002050044A1 (en) | 2000-12-21 | 2001-12-19 | Novel 2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same as the active ingredient |
Country Status (20)
Country | Link |
---|---|
US (1) | US7189711B2 (en) |
EP (1) | EP1351942B1 (en) |
JP (1) | JP4201252B2 (en) |
AT (1) | ATE271548T1 (en) |
AU (1) | AU2002217356A1 (en) |
BG (1) | BG66199B1 (en) |
CA (1) | CA2431761C (en) |
CZ (1) | CZ301371B6 (en) |
DE (1) | DE60104448T2 (en) |
DK (1) | DK1351942T3 (en) |
EA (1) | EA005867B1 (en) |
ES (1) | ES2225412T3 (en) |
HU (1) | HU225100B1 (en) |
PL (1) | PL211495B1 (en) |
PT (1) | PT1351942E (en) |
RO (1) | RO121268B1 (en) |
SK (1) | SK286620B6 (en) |
TR (1) | TR200402493T4 (en) |
UA (1) | UA74615C2 (en) |
WO (1) | WO2002050044A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007501216A (en) * | 2003-08-04 | 2007-01-25 | エギシュ ヂョヂセルヂャール エルテー | 8-chloro-2,3-benzodiazepine derivatives |
WO2007077469A1 (en) * | 2005-12-30 | 2007-07-12 | Egis Gyógyszergyár | Optical isomers of dihydro-2,3-benzodiazepines and their stereoselective synthesis |
WO2014026997A1 (en) * | 2012-08-16 | 2014-02-20 | Bayer Pharma Aktiengesellschaft | 2,3-benzodiazepines |
WO2014202578A1 (en) * | 2013-06-17 | 2014-12-24 | Bayer Pharma Aktiengesellschaft | Substituted phenyl-2,3-benzodiazepines |
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US4614740A (en) * | 1984-07-27 | 1986-09-30 | Egis Gyogyszergyar | 5H-2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same |
WO1997028135A1 (en) * | 1996-02-01 | 1997-08-07 | Schering Aktiengesellschaft | 2,3-benzodiazepine derivatives and their use as ampa-receptor inhibitors |
WO1997034878A1 (en) * | 1996-03-21 | 1997-09-25 | Cocensys, Inc. | Substituted 2,3-benzodiazepin-4-ones and the use thereof |
EP0802195A2 (en) * | 1996-04-04 | 1997-10-22 | Egis Gyogyszergyar Rt. | Substituted 2,3-benzodiazepine derivatives, process and intermediates for their preparation and pharmaceutical compositions comprising them as well as their use |
WO2001004122A2 (en) * | 1999-07-07 | 2001-01-18 | EGIS Gyógyszergyár Rt. | New 2,3-benzodiazepine derivatives |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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HU219778B (en) * | 1990-12-21 | 2001-07-30 | Gyógyszerkutató Intézet Közös Vállalat | Process for producing n-acyl-2,3-benzodiazepine derivatives, their acid additional salts and pharmaceutical compositions containing them and a grop of the compounds and pharmaceutical compositions containing them |
RU2325811C2 (en) | 2006-06-28 | 2008-06-10 | Общество С Ограниченной Ответственностью "Фито-Маг" | Method of storing fruits, vegetables and crop products |
-
2000
- 2000-12-21 HU HU0004994A patent/HU225100B1/en not_active IP Right Cessation
-
2001
- 2001-12-19 DE DE60104448T patent/DE60104448T2/en not_active Expired - Lifetime
- 2001-12-19 EA EA200300691A patent/EA005867B1/en not_active IP Right Cessation
- 2001-12-19 CZ CZ20031680A patent/CZ301371B6/en not_active IP Right Cessation
- 2001-12-19 JP JP2002551541A patent/JP4201252B2/en not_active Expired - Fee Related
- 2001-12-19 TR TR2004/02493T patent/TR200402493T4/en unknown
- 2001-12-19 UA UA2003076874A patent/UA74615C2/en unknown
- 2001-12-19 US US10/450,898 patent/US7189711B2/en not_active Expired - Fee Related
- 2001-12-19 DK DK01271364T patent/DK1351942T3/en active
- 2001-12-19 AT AT01271364T patent/ATE271548T1/en not_active IP Right Cessation
- 2001-12-19 SK SK788-2003A patent/SK286620B6/en not_active IP Right Cessation
- 2001-12-19 EP EP01271364A patent/EP1351942B1/en not_active Expired - Lifetime
- 2001-12-19 AU AU2002217356A patent/AU2002217356A1/en not_active Abandoned
- 2001-12-19 ES ES01271364T patent/ES2225412T3/en not_active Expired - Lifetime
- 2001-12-19 CA CA2431761A patent/CA2431761C/en not_active Expired - Fee Related
- 2001-12-19 RO ROA200300539A patent/RO121268B1/en unknown
- 2001-12-19 PL PL362029A patent/PL211495B1/en unknown
- 2001-12-19 WO PCT/HU2001/000151 patent/WO2002050044A1/en active IP Right Grant
- 2001-12-19 PT PT01271364T patent/PT1351942E/en unknown
-
2003
- 2003-06-20 BG BG107932A patent/BG66199B1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US4614740A (en) * | 1984-07-27 | 1986-09-30 | Egis Gyogyszergyar | 5H-2,3-benzodiazepine derivatives and pharmaceutical compositions containing the same |
WO1997028135A1 (en) * | 1996-02-01 | 1997-08-07 | Schering Aktiengesellschaft | 2,3-benzodiazepine derivatives and their use as ampa-receptor inhibitors |
WO1997034878A1 (en) * | 1996-03-21 | 1997-09-25 | Cocensys, Inc. | Substituted 2,3-benzodiazepin-4-ones and the use thereof |
EP0802195A2 (en) * | 1996-04-04 | 1997-10-22 | Egis Gyogyszergyar Rt. | Substituted 2,3-benzodiazepine derivatives, process and intermediates for their preparation and pharmaceutical compositions comprising them as well as their use |
WO2001004122A2 (en) * | 1999-07-07 | 2001-01-18 | EGIS Gyógyszergyár Rt. | New 2,3-benzodiazepine derivatives |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007501216A (en) * | 2003-08-04 | 2007-01-25 | エギシュ ヂョヂセルヂャール エルテー | 8-chloro-2,3-benzodiazepine derivatives |
JP4752011B2 (en) * | 2003-08-04 | 2011-08-17 | エギシュ ヂョヂセルヂャール ニルヴァーノサン ミケデ レースヴェーニタールササーグ | 8-chloro-2,3-benzodiazepine derivatives |
WO2007077469A1 (en) * | 2005-12-30 | 2007-07-12 | Egis Gyógyszergyár | Optical isomers of dihydro-2,3-benzodiazepines and their stereoselective synthesis |
EA016087B1 (en) * | 2005-12-30 | 2012-02-28 | Эгиш Дьёдьсердьяр Ньильваношан Мюкёдё Ресвеньтаршашаг | Optical isomers of dihydro-2,3-benzodiazepines and their stereoselective synthesis |
WO2014026997A1 (en) * | 2012-08-16 | 2014-02-20 | Bayer Pharma Aktiengesellschaft | 2,3-benzodiazepines |
CN104755473A (en) * | 2012-08-16 | 2015-07-01 | 拜耳医药股份有限公司 | 2,3-benzodiazepines |
CN104755473B (en) * | 2012-08-16 | 2017-03-08 | 拜耳医药股份有限公司 | 2,3 benzodiazepine * |
WO2014202578A1 (en) * | 2013-06-17 | 2014-12-24 | Bayer Pharma Aktiengesellschaft | Substituted phenyl-2,3-benzodiazepines |
Also Published As
Publication number | Publication date |
---|---|
CA2431761C (en) | 2010-05-25 |
ATE271548T1 (en) | 2004-08-15 |
PL362029A1 (en) | 2004-10-18 |
UA74615C2 (en) | 2006-01-16 |
RO121268B1 (en) | 2007-02-28 |
EA200300691A1 (en) | 2003-12-25 |
AU2002217356A1 (en) | 2002-07-01 |
ES2225412T3 (en) | 2005-03-16 |
JP4201252B2 (en) | 2008-12-24 |
DE60104448T2 (en) | 2005-07-28 |
CA2431761A1 (en) | 2002-06-27 |
PL211495B1 (en) | 2012-05-31 |
JP2004516284A (en) | 2004-06-03 |
CZ301371B6 (en) | 2010-02-03 |
BG66199B1 (en) | 2012-01-31 |
US7189711B2 (en) | 2007-03-13 |
DK1351942T3 (en) | 2004-11-22 |
PT1351942E (en) | 2004-11-30 |
HU225100B1 (en) | 2006-06-28 |
EP1351942A1 (en) | 2003-10-15 |
DE60104448D1 (en) | 2004-08-26 |
SK7882003A3 (en) | 2003-11-04 |
EP1351942B1 (en) | 2004-07-21 |
SK286620B6 (en) | 2009-02-05 |
HU0004994D0 (en) | 2001-03-28 |
EA005867B1 (en) | 2005-06-30 |
TR200402493T4 (en) | 2004-12-21 |
BG107932A (en) | 2004-02-27 |
US20040092510A1 (en) | 2004-05-13 |
CZ20031680A3 (en) | 2003-11-12 |
HUP0004994A2 (en) | 2002-11-28 |
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