WO2009130314A1 - Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors - Google Patents
Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors Download PDFInfo
- Publication number
- WO2009130314A1 WO2009130314A1 PCT/EP2009/054981 EP2009054981W WO2009130314A1 WO 2009130314 A1 WO2009130314 A1 WO 2009130314A1 EP 2009054981 W EP2009054981 W EP 2009054981W WO 2009130314 A1 WO2009130314 A1 WO 2009130314A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- compound
- hydrogen
- compounds
- methyl
- Prior art date
Links
- 0 C[C@@](C1=O)(N=Nc2cc3ccccc3cc2)OC(*)=C1I Chemical compound C[C@@](C1=O)(N=Nc2cc3ccccc3cc2)OC(*)=C1I 0.000 description 4
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or 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
- C07D231/18—One oxygen or sulfur atom
- C07D231/20—One oxygen atom attached in position 3 or 5
Definitions
- the invention relates to a process for preparing naphthalen-2-yl-pyrazol-3-one intermediates, tautomers, and salts thereof, to novel intermediates, and to the use of the intermediates in the preparation of sigma receptor inhibitors .
- Psychiatric and neurologic disorders are among the most severe and chronic diseases and conditions . These disorders are also extremely difficult to treat effectively because of the multiplicity of the symptoms and etiologies.
- sigma receptor inhibitors have been found useful in the treatment of psychosis and movement disorders such as dystonia and tardive dyskinesia, and motor disturbances associated with Huntington's chorea or Tourette's syndrome and in Parkinson's disease (Walker, J. M. et al, Pharmacological Reviews, 1990, 42, 355) .
- WO2006021462 and WO2007098953 describe pyrazole-containing compounds having pharmacological activity towards the sigma receptor, being particularly useful in the therapy of pain, in particular neuropathic pain or allodynia. These compounds have the following chemical structure:
- these intermediates can be prepared by reacting a acetohydrazide derivative with an ethyl acetoacetate; by reacting an hydrazine derivative with an ethyl butynoate; or by the method provided by F. Effenberger and W. Hartmann, Chem. Ber., 102(10), 3260- 3267, 1969, where an ethoxy-acryl ic acid hydrazide is reacted with concentrated mineral acid.
- the exemplified aryl derivatives are all restricted to phenyl- containing compounds .
- Phenyl and naphthyl rings have distinct reactivity due to a difference in the ⁇ - stabilization energy of the aromatic rings.
- the naphthyl radical introduces a bigger steric hindrance that the phenyl radical.
- these methods are devised for a laboratory environment, and have not been validated for a scalable process.
- an objective of the present invention is to provide a process for the preparation of naphthalen-2-yl-pyrazol-3- one intermediates, which process can improve at least one or more of the following process related parameters, i.e. purity, yield, simplification of the synthetic route, use of affordable conditions, use of environmental-friendly conditions, use of non-toxic reagents, or improved processability of the reagents or final intermediate products .
- the present invention concerns a process for preparing an intermediate in the synthesis of pyrazole-containing compounds useful in the therapy of pain, in particular it concerns a process for preparing a compound of formula (V) , a tautomer (Va and salts thereof,
- R 2 is hydrogen, Ci- ⁇ alkyl, or phenyl;
- R 3 is hydrogen or Ci- ⁇ alkoxy; and
- R 4 is hydrogen or Ci-4alkyl.
- the present invention provides the compounds of formula (V), (Va), (IV), per se , wherein R 1 ,
- R 2 , and R 3 are as defined above.
- the invention refers to the use of the compounds of formula (V), (Va), and (IV) as intermediates in the preparation of a compound of formula (X) , pharmaceutically acceptable salts, isomers, prodrugs, and solvates thereof.
- the present invention relates to a method for the preparation of a compound of formula (V) , a tautomer (Va) , and salts thereof,
- R 2 is hydrogen, Ci- ⁇ alkyl, or phenyl;
- R 3 is hydrogen or Ci-6alkoxy; and
- R 4 is hydrogen or Ci- 4 alkyl.
- Ci- 4 alkyl as a group or part of a group defines straight or branched chain saturated hydrocarbon radicals having from 1 to 4 carbon atoms such as methyl, ethyl, propyl, 1-methylethyl, butyl;
- Ci- ⁇ alkyl as a group or part of a group defines straight or branched chain saturated hydrocarbon radicals having from 1 to 6 carbon atoms such as the group defined for Ci- 4 alkyl and pentyl, hexyl, 2-methylbutyl, and the like.
- Ci- ⁇ alkoxy means Ci- ⁇ alkyloxy or a Ci- ⁇ alkyl ether radical, wherein the term Ci- ⁇ alkyl is as defined above.
- alkyl ether radicals examples include methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, iso-butoxy, sec- butoxy, tert-butoxy, hexanoxy and the like.
- halide is generic to fluorine, chlorine, bromine, and iodine.
- radical positions on any molecular moiety used in the definitions may be anywhere on such moiety as long as it is chemically stable.
- each definition is independent.
- the naphthyl ring in those compounds of formulae (V), (Va), (IV), (II), and (I), the naphthyl ring may be substituted by R 3 in each of the positions 1, 3, 4, 5, 6, 7, and 8.
- the naphthyl ring is unsubstituted, i.e. R 3 is hydrogen.
- the naphthyl ring is substituted in positions 5, 6, or 7 by a Ci- ⁇ alkoxy group, preferably selected from methoxy, ethoxy, n-propoxy, and isopropoxy.
- R 2 is selected from hydrogen, methyl, ethyl, propyl, isopropyl, and phenyl.
- R 2 is selected from hydrogen, methyl, isopropyl, and phenyl. More preferably
- R 2 is methyl
- salt as mentioned herein is meant to comprise any stable salts, which the intermediates of formula (V) or (Va) are able to form.
- pharmaceutically acceptable salts which are the non-toxic salt forms. Salts that are not pharmaceutically acceptable are also embraced in the scope of the present invention, since they refer to intermediates that are useful in the preparation of compounds with pharmacological activity.
- the salts can conveniently be obtained by treating the base form with such appropriate acids as inorganic acids, for example, hydrohalic acids, e.g.
- hydrochloric, hydrobromic and the like sulfuric acid; nitric acid; phosphoric acid and the like; or organic acids, for example, acetic, propanoic, hydroxyacetic, 2-hydroxypropanoic, 2-oxopropanoic, oxalic, malonic, succinic, maleic, fumaric, malic, tartaric, 2- hydroxy-1, 2, 3-propane-tricarboxylic, methanesulfonic, ethanesulfonic, benzenesulfonic, 4-methylbenzene-sulfonic, cyclohexanesulfamic, 2-hydroxybenzoic, 4-amino-2- hydroxybenzoic and similar acids.
- organic acids for example, acetic, propanoic, hydroxyacetic, 2-hydroxypropanoic, 2-oxopropanoic, oxalic, malonic, succinic, maleic, fumaric, malic, tartaric, 2- hydroxy-1, 2, 3-propane
- salt form can be converted by treatment with alkali into the free base form.
- salts is also meant to include the hydrates or solvates which the compounds of formula (V) and (Va) are able to form, including, e.g. alcoholates, such as methanolates or ethanolates.
- phrases “pharmaceutically acceptable” refers to molecular entities and compositions that do not produce adverse, allergic, or other untoward reactions when administered to an animal or a human.
- acidic conditions refers to acids such as hydrochloric acid, acetic acid, trifluoroacetic acid, formic acid, sulphonic acid, sulfuric acid, phosphoric acid, mixtures thereof, and the like. These acids may be employed in diluted or concentrated form, such as concentrated hydrochloric.
- the hydrochloric acid is used at approximately a concentration IN - 12N, preferably, at 3N to 9N, more preferably, at 5N to 7N, and even more preferably, at about 6N.
- “acidic conditions” refers to a pH ⁇ 3 solution setting.
- a mixture of acetic acid and hydrochloric acid is employed, preferably, in a ratio of 1 to 5 volumes of acetic acid to 1 volume of hydrochloric acid, and more preferably, in a ratio of 2 to 3 volumes of acetic acid to 1 volume of hydrochloric acid.
- the temperature of the reaction ranges from 15 to 80 0 C.
- Preferred reaction temperatures are selected in the range of 20 to 75 0 C, more preferably, in the range of 30 to 70 0 C, and even more preferably, in the range of 45 to 65 0 C.
- the reaction products may be isolated from the reaction medium and, if necessary, further purified according to methodologies generally known in the art such as extraction, crystallization and chromatography.
- the compound of formula (IV) is prepared by reacting a compound of formula (II) with a compound of formula (III) in an aqueous medium at a pH below 1,
- X is halide, nitrate, phosphate, sulfate, borate, or tetrafluoroborate
- R 1 , R 2 , and R 3 are as defined above.
- the aqueous medium referred herein also includes water.
- concentrated acids such as hydrochloric acid, hydrofluoric acid, nitric acid, phosphoric acid, sulfuric acid, boric acid, and tetrafluoroboric acid may be added.
- concentrated hydrochloric acid is used.
- one embodiment of the present invention refers to a method for the preparation of a compound of formula (V) , a tautomer (Va) , and salts thereof, said method comprising reacting a compound of formula (II) with a compound of formula (III) in an aqueous medium at a pH below 1, thereby obtaining a reaction mixture comprising a compound of formula (IV) .
- the organic phase thereof is then submitted to acidic conditions at a temperature between 15 and 80 0 C, thereby obtaining a compound of formula (V) , a tautomer (Va) , or a salt thereof; wherein X, R 1 , R 2 , and R 3 are as defined above in compounds of formula (II), (III), (IV), (V) , and (Va) .
- compound of formula (IV) may be separated by filtration of the aqueous phase. If compound of formula (IV) is not miscible in water, the compound can be separated by pouring or by liquid-liquid extraction.
- stereochemically isomeric forms as used herein defines all the possible compounds made up of the same atoms bonded by the same sequence of bonds but having different three- dimensional structures which are not interchangeable, which the compounds of formula (III) or (IV) may possess.
- the chemical designation of a compound encompasses the mixture of all possible stereochemically isomeric forms, which said compounds may possess. Said mixture may contain all diastereomers and/or enantiomers of the basic molecular structure of said compound. All stereochemically isomeric forms of the compounds of the present invention both in pure form or mixed with each other are intended to be embraced within the scope of the present invention.
- stereoisomerically pure concerns compounds or intermediates having a stereoisomeric excess of at least 80% (i.e. minimum 90% of one isomer and maximum 10% of the other possible isomers) up to a stereoisomeric excess of 100% (i.e.
- enantiomers may be separated from each other by the selective crystallization of their diastereomeric salts with optically active acids or bases. Examples thereof are tartaric acid, dibenzoyltartaric acid, ditoluoyltartaric acid and camphosulfonic acid.
- enantiomers may be separated by chromatographic techniques using chiral stationary phases.
- Said pure s tereochemically isomeric forms may also be derived from the corresponding pure stereochemically isomeric forms of the appropriate starting materials, provided that the reaction occurs stereospecifically .
- the compound of formula (II) is prepared by reacting compound of formula (I) with a nitrous acid solution in an aqueous medium at a temperature between -10 and 10 0 C,
- R 3 is as defined above.
- the nitrous acid solution may be prepared by reacting a mineral acid with sodium nitrite.
- Suitable mineral acids for preparing the nitrous acid solution include hydrochloric acid, hydrofluoric acid, nitric acid, phosphoric acid, sulfuric acid, boric acid, and tetrafluoroboric acid.
- the reaction temperature employed in the preparation of compound of formula (II) is suitably selected between -10 and 10 0 C, preferably between -5 and 5 0 C, and more preferably at approximately 0 0 C.
- each of the obtained compounds when necessary, can be collected from the reaction mixture according to methods known in the art.
- the desired compound when insoluble materials are present, can be obtained -after removing the insoluble materials by filtration- by removing the solvent, e.g. by removing the solvent under reduced pressure, and/or by adding water to the residue and extracting the mixture with a water-immiscible organic solvent such as ethyl acetate, etc.
- the desired compound can be obtained after drying over anhydrous sodium sulfate, for instance, and further, if necessary, by purifying with any conventional method, such as recrystallization, column chromatography, or other techniques.
- Another embodiment of the present invention refers to a compound of formula (V) , a tautomer (Va) , and salts thereof, per se
- R 2 is hydrogen, Ci- ⁇ alkyl, or phenyl;
- R 3 is hydrogen or Ci-6alkoxy; and
- R 4 is hydrogen or Ci_4alkyl.
- Examples of specific compounds of formula (V) or (Va) in accordance with the invention include compound Nos. 1, 2, 3, and 4, referred to in the Examples below, and the salts thereof.
- Another embodiment of the present invention refers to a compound of formula (IV) per se,
- R 2 is hydrogen, Ci- ⁇ alkyl, or phenyl;
- R 3 is hydrogen or Ci- ⁇ alkoxy; and
- R 4 is hydrogen or Ci- 4 alkyl.
- the compounds of formula (V) or (Va) of the present invention may be converted to the corresponding N-oxide forms following art-known procedures for converting a trivalent nitrogen into its N-oxide form.
- the N-oxide forms of the present compounds are meant to comprise the compounds of formula (V) or (Va) wherein one or several nitrogen atoms are oxidized to the so-called N-oxide.
- Said N-oxidation reaction may generally be carried out by reacting compound of formula (V) or (Va) with an appropriate organic or inorganic peroxide.
- Appropriate inorganic peroxides comprise, for example, hydrogen peroxide, alkali metal or earth alkaline metal peroxides, e.g.
- organic peroxides may comprise peroxy acids such as, for example, benzenecarbo-peroxoic acid or halo substituted benzenecarboperoxoic acid, e.g. 3-chlorobenzene- carboperoxoic acid, peroxoalkanoic acids, e.g. peroxoacetic acid, alkylhydroperoxides, e.g. tert-butyl hydro-peroxide.
- peroxy acids such as, for example, benzenecarbo-peroxoic acid or halo substituted benzenecarboperoxoic acid, e.g. 3-chlorobenzene- carboperoxoic acid, peroxoalkanoic acids, e.g. peroxoacetic acid, alkylhydroperoxides, e.g. tert-butyl hydro-peroxide.
- Suitable solvents are, for example, water, lower alcohols, e.g. ethanol and the like, hydrocarbons, e.g. toluene, ketones, e.g. 2-butanone, halogenated hydrocarbons, e.g. dichloromethane, and mixtures of such solvents.
- the compounds of the present invention are useful as intermediates in the preparation of a compound of formula (X) as defined above.
- the compounds of the present invention are useful in the preparation of a compound of formula (X) , pharmaceutically acceptable salts, isomers, prodrugs, and solvates thereof, which has pharmacological activity against the sigma receptor -a cell surface receptor of the central nervous system, which is said to be related to the dysphoric, hallucinogenic and cardiac stimulant effects of opioids.
- one embodiment of the present invention refers to the use of compounds of formula (V) , a tautomer (Va) , and salts thereof as intermediates in the preparation of a compound of formula (X) , pharmaceutically acceptable salts, isomers, prodrugs, and solvates thereof,
- Another embodiment of the present invention refers to the use of compounds of formula (IV), (III), (II), and (I), each independently, as intermediates in the preparation of a compound of formula (X) , pharmaceutically acceptable salts, isomers, prodrugs, and solvates thereof, as referred to herein above.
- prodrug as used throughout this text means the pharmacologically acceptable derivatives such as esters, amides and phosphates, such that the resulting in vivo biotransformation product of the derivative is the active drug as defined in the compounds of formula (X) .
- the reference by Goodman and Gilman The Pharmaco-logical Basis of Therapeutics, 8th ed, McGraw-I-Til 1 , hit. Ed. 1992, "Biotransformation of Drugs", p 13-15) describing prodrugs generally is hereby incorporated.
- Prodrugs preferably have excellent aqueous solubility, increased bioavailability and are readily metabolized into the active inhibitors in vivo.
- Prodrugs of a compound of the present invention may be prepared by modifying functional groups present in the compound in such a way that the modifications are cleaved, either by routine manipulation or in vivo, to the parent compound.
- solvate refers to those crystal forms of the compounds of formula (X) that contain either stoichiometric or non-stoichiometric amounts of solvent. Since water is a solvent, solvates also include hydrates.
- solvate is synonym to solvate since it applies to polymorphic crystalline forms that have solvent molecules incorporated in their lattice structures.
- solvates are hydrates and alcoholates such as methanolates or ethanolates.
- naphthalen-2-amine (2,86 g, 20 mmol) in H 2 O (12 mL) was added HCl cone. (5 mL) and cooled in an ice bath, and subsequently, a NaNO 2 solution (1,48 g, 21,5 nnmol in H 2 O (8 mL) ) was added drop-wise maintaining the stirring mixture at 0 0 C during 20 minutes.
- Example 3 Additional compounds that were prepared following the methods described in Examples 1 and 2 were: Compound Name 1 H-NMR MS nr . ⁇ ppm
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980122965.5A CN102066332B (en) | 2008-04-25 | 2009-04-24 | For synthesizing the preparation method of the naphthalene-2-base-pyrazoles-3-ketone intermediate of sigma receptor inhibitors |
BRPI0910675-8A BRPI0910675A2 (en) | 2008-04-25 | 2009-04-24 | Process for preparing naphthalen-2-ylpyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
MX2010011677A MX2010011677A (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors. |
RU2010147938/04A RU2509763C2 (en) | 2008-04-25 | 2009-04-24 | Method of producing naphthalen-2-yl-pyrazol-3-one intermediate compounds used in synthesis of sigma receptor inhibitors |
US12/988,922 US8329880B2 (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
ES09735117.5T ES2544759T3 (en) | 2008-04-25 | 2009-04-24 | Procedure for the preparation of naphthalen-2-yl-pyrazole-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
EP20090735117 EP2279175B1 (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
CA2722250A CA2722250C (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
AU2009239889A AU2009239889B2 (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
JP2011505524A JP5781923B2 (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful for the synthesis of sigma receptor inhibitors |
DK09735117.5T DK2279175T3 (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates which can be used for the synthesis of sigma receptor inhibitors |
PL09735117T PL2279175T3 (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
HK11107937.8A HK1155436A1 (en) | 2008-04-25 | 2011-08-01 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors -2---3- |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08384006.6 | 2008-04-25 | ||
EP08384006A EP2112139A1 (en) | 2008-04-25 | 2008-04-25 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009130314A1 true WO2009130314A1 (en) | 2009-10-29 |
Family
ID=39717791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/054981 WO2009130314A1 (en) | 2008-04-25 | 2009-04-24 | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors |
Country Status (17)
Country | Link |
---|---|
US (1) | US8329880B2 (en) |
EP (2) | EP2112139A1 (en) |
JP (2) | JP5781923B2 (en) |
KR (1) | KR101641696B1 (en) |
CN (1) | CN102066332B (en) |
AU (1) | AU2009239889B2 (en) |
BR (1) | BRPI0910675A2 (en) |
CA (1) | CA2722250C (en) |
DK (1) | DK2279175T3 (en) |
ES (1) | ES2544759T3 (en) |
HK (1) | HK1155436A1 (en) |
HU (1) | HUE026759T2 (en) |
MX (1) | MX2010011677A (en) |
PL (1) | PL2279175T3 (en) |
PT (1) | PT2279175E (en) |
RU (1) | RU2509763C2 (en) |
WO (1) | WO2009130314A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012013755A1 (en) | 2010-07-30 | 2012-02-02 | Esteve Química, S.A. | Process for the preparation of 1-aryl-pyrazol-3-one intermediates useful in the synthesis of sigma receptors inhibitors |
KR101306958B1 (en) * | 2010-11-08 | 2013-09-10 | 건국대학교 산학협력단 | Trimethoxyphenyl-4,5-dihydro-1h-pirazol-3-yl-naphthalen-2-ol derivatives having apoptosis-inducing activation |
US9757358B2 (en) | 2010-02-04 | 2017-09-12 | Laboratorios Del Dr. Esteve, S.A. | Sigma ligands for potentiating the analgesic effect of opioids and opiates in post-operative pain and attenuating the dependency thereof |
US9782483B2 (en) | 2010-05-21 | 2017-10-10 | Laboratories Del Dr. Esteve, S.A. | Sigma ligands for the prevention and/or treatment of emesis induced by chemotherapy or radiotherapy |
US9789117B2 (en) | 2011-05-18 | 2017-10-17 | Laboratorios Del Dr. Esteve, S.A. | Use of sigma ligands in diabetes type-2 associated pain |
US9789115B2 (en) | 2010-08-03 | 2017-10-17 | Laboratorios Del Dr. Esteve, S.A. | Use of sigma ligands in opioid-induced hyperalgesia |
US9914705B2 (en) | 2008-04-25 | 2018-03-13 | Laboratorios Del Dr. Esteve, S.A. | 1-aryl-3-aminoalkoxy pyrazoles as sigma ligands enhancing analgesic effect of opioids and attenuating the dependency thereof |
US9931346B2 (en) | 2013-12-17 | 2018-04-03 | Laboratorios Del Dr. Esteve S.A. | Serotonin-norepinephrine reuptake inhibitors (SNRIs) and Sigma receptor ligands combinations |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2353598A1 (en) | 2010-02-04 | 2011-08-10 | Laboratorios Del. Dr. Esteve, S.A. | Sigma ligands for use in the prevention and/or treatment of postoperative pain |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006021462A1 (en) * | 2004-08-27 | 2006-03-02 | Laboratorios Del Dr. Esteve, S.A. | Sigma receptor inhibitors |
WO2007098953A1 (en) * | 2006-03-01 | 2007-09-07 | Laboratorios Del Dr. Esteve, S.A. | Pyrazole derivatives as sigma receptor inhibitors |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2908677A (en) * | 1955-03-30 | 1959-10-13 | Eastman Kodak Co | Nickel and cobalt complexes of pyrazolone monoazo compounds |
NL125658C (en) * | 1964-02-03 | |||
CH471199A (en) * | 1965-07-06 | 1969-04-15 | Sandoz Ag | Process for the production of metal-containing azo dyes |
DE2313722C3 (en) * | 1973-03-20 | 1987-04-16 | Bayer Ag, 5090 Leverkusen | Chromic complex dye and its use for dyeing and printing nitrogen-containing fibre materials |
DE2347015C2 (en) * | 1973-09-14 | 1985-12-12 | Schering AG, 1000 Berlin und 4709 Bergkamen | New pyrazolyloxyacetic acid derivatives, processes for their preparation and compositions containing them |
IT1005472B (en) * | 1974-02-15 | 1976-08-20 | Montedison Spa | PROCEDURE FOR THE PREPARATION OF 2,5, DIMETHYL 3,2H, FURANONE |
CA1121651A (en) | 1978-07-27 | 1982-04-13 | Chi-Kuen Shu | 2,5-dialkyl dihydrofuranones and 2,4,5-trialkyl dihydrofuranones, mixtures of same and organoleptic uses thereof |
US4207392A (en) * | 1978-10-30 | 1980-06-10 | Eastman Kodak Company | Heat developable and stabilizable photographic materials and process |
US4234616A (en) | 1979-08-03 | 1980-11-18 | International Flavors & Fragrances Inc. | Flavoring with mixtures of 2,5-dialkyl dihydrofuranones and 2,4,5-trialkyl dihydrofuranones |
EP0054002B1 (en) * | 1980-12-10 | 1985-08-21 | Ciba-Geigy Ag | Process for the preparation of 3-pyrazolidinones, and their use in photographic developing baths |
JPH1036259A (en) | 1996-04-11 | 1998-02-10 | Kikkoman Corp | Preventive and therapeutic agent for cataract |
US7091257B2 (en) * | 1999-07-27 | 2006-08-15 | Alcatel | Radiation-curable composition with simultaneous color formation during cure |
CA2403328A1 (en) * | 2000-04-03 | 2001-10-11 | Sun Chemical Corporation | Mono- and bis-hydrazone pigments |
-
2008
- 2008-04-25 EP EP08384006A patent/EP2112139A1/en not_active Withdrawn
-
2009
- 2009-04-24 BR BRPI0910675-8A patent/BRPI0910675A2/en not_active IP Right Cessation
- 2009-04-24 PT PT97351175T patent/PT2279175E/en unknown
- 2009-04-24 KR KR1020107026370A patent/KR101641696B1/en active IP Right Grant
- 2009-04-24 HU HUE09735117A patent/HUE026759T2/en unknown
- 2009-04-24 ES ES09735117.5T patent/ES2544759T3/en active Active
- 2009-04-24 CN CN200980122965.5A patent/CN102066332B/en not_active Expired - Fee Related
- 2009-04-24 CA CA2722250A patent/CA2722250C/en not_active Expired - Fee Related
- 2009-04-24 AU AU2009239889A patent/AU2009239889B2/en not_active Ceased
- 2009-04-24 PL PL09735117T patent/PL2279175T3/en unknown
- 2009-04-24 DK DK09735117.5T patent/DK2279175T3/en active
- 2009-04-24 RU RU2010147938/04A patent/RU2509763C2/en not_active IP Right Cessation
- 2009-04-24 EP EP20090735117 patent/EP2279175B1/en active Active
- 2009-04-24 MX MX2010011677A patent/MX2010011677A/en active IP Right Grant
- 2009-04-24 WO PCT/EP2009/054981 patent/WO2009130314A1/en active Application Filing
- 2009-04-24 US US12/988,922 patent/US8329880B2/en not_active Expired - Fee Related
- 2009-04-24 JP JP2011505524A patent/JP5781923B2/en not_active Expired - Fee Related
-
2011
- 2011-08-01 HK HK11107937.8A patent/HK1155436A1/en not_active IP Right Cessation
-
2014
- 2014-07-04 JP JP2014138953A patent/JP2014237654A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006021462A1 (en) * | 2004-08-27 | 2006-03-02 | Laboratorios Del Dr. Esteve, S.A. | Sigma receptor inhibitors |
WO2007098953A1 (en) * | 2006-03-01 | 2007-09-07 | Laboratorios Del Dr. Esteve, S.A. | Pyrazole derivatives as sigma receptor inhibitors |
Non-Patent Citations (3)
Title |
---|
ALMERICO AM: "1-Methyl-3H-pyrazolo[1,2-a]benzo[1,2,3,4]tetrazin-3-ones. Design, synthesis and biological activity of new antitumor agents", JOURNAL OF MEDICINAL CHEMISTRY, vol. 48, 2005, pages 2859 - 2866, XP002494543 * |
GOODMAN; GILMAN: "Biotransformation of Drugs", 1992, MCGRAW-I-TILL, article "The Pharmaco-logical Basis of Therapeutics", pages: 13 - 15 |
VENTURELLO C.: "2-Arylazo-2,5-dimethyl-3-oxo-2,3-dihydrofurans, useful intermediates in the synthesis of 1-aryl-5-methyl-3-pyrazolones", SYNTHESIS, 1979, pages 283 - 287, XP002494542 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9914705B2 (en) | 2008-04-25 | 2018-03-13 | Laboratorios Del Dr. Esteve, S.A. | 1-aryl-3-aminoalkoxy pyrazoles as sigma ligands enhancing analgesic effect of opioids and attenuating the dependency thereof |
US9757358B2 (en) | 2010-02-04 | 2017-09-12 | Laboratorios Del Dr. Esteve, S.A. | Sigma ligands for potentiating the analgesic effect of opioids and opiates in post-operative pain and attenuating the dependency thereof |
US9782483B2 (en) | 2010-05-21 | 2017-10-10 | Laboratories Del Dr. Esteve, S.A. | Sigma ligands for the prevention and/or treatment of emesis induced by chemotherapy or radiotherapy |
WO2012013755A1 (en) | 2010-07-30 | 2012-02-02 | Esteve Química, S.A. | Process for the preparation of 1-aryl-pyrazol-3-one intermediates useful in the synthesis of sigma receptors inhibitors |
EP2418192A1 (en) | 2010-07-30 | 2012-02-15 | Esteve Química, S.A. | Intermediates for the preparation of 1-aryl-pyrazol-3-one compounds useful as sigma receptors inhibitors |
JP2013536176A (en) * | 2010-07-30 | 2013-09-19 | エステベ・キミカ・ソシエダッド・アノニマ | Method for preparing 1-aryl-pyrazol-3-one intermediates useful for the synthesis of sigma receptor inhibitors |
US9035070B2 (en) | 2010-07-30 | 2015-05-19 | Esteve Química, S.A. | Process for the preparation of 1-aryl-pyrazol-3-one intermediates useful in the synthesis of sigma receptors inhibitors |
US9789115B2 (en) | 2010-08-03 | 2017-10-17 | Laboratorios Del Dr. Esteve, S.A. | Use of sigma ligands in opioid-induced hyperalgesia |
KR101306958B1 (en) * | 2010-11-08 | 2013-09-10 | 건국대학교 산학협력단 | Trimethoxyphenyl-4,5-dihydro-1h-pirazol-3-yl-naphthalen-2-ol derivatives having apoptosis-inducing activation |
US9789117B2 (en) | 2011-05-18 | 2017-10-17 | Laboratorios Del Dr. Esteve, S.A. | Use of sigma ligands in diabetes type-2 associated pain |
US9931346B2 (en) | 2013-12-17 | 2018-04-03 | Laboratorios Del Dr. Esteve S.A. | Serotonin-norepinephrine reuptake inhibitors (SNRIs) and Sigma receptor ligands combinations |
Also Published As
Publication number | Publication date |
---|---|
CA2722250C (en) | 2016-07-26 |
HK1155436A1 (en) | 2012-05-18 |
AU2009239889B2 (en) | 2014-02-13 |
PT2279175E (en) | 2015-08-28 |
RU2010147938A (en) | 2012-05-27 |
HUE026759T2 (en) | 2016-07-28 |
PL2279175T3 (en) | 2015-10-30 |
AU2009239889A1 (en) | 2009-10-29 |
EP2279175A1 (en) | 2011-02-02 |
MX2010011677A (en) | 2010-11-25 |
EP2279175B1 (en) | 2015-05-13 |
KR101641696B1 (en) | 2016-07-22 |
CN102066332B (en) | 2016-10-26 |
CA2722250A1 (en) | 2009-10-29 |
US8329880B2 (en) | 2012-12-11 |
JP2011518808A (en) | 2011-06-30 |
ES2544759T3 (en) | 2015-09-03 |
JP5781923B2 (en) | 2015-09-24 |
BRPI0910675A2 (en) | 2015-08-11 |
CN102066332A (en) | 2011-05-18 |
DK2279175T3 (en) | 2015-08-10 |
KR20110017367A (en) | 2011-02-21 |
EP2112139A1 (en) | 2009-10-28 |
JP2014237654A (en) | 2014-12-18 |
US20110071282A1 (en) | 2011-03-24 |
RU2509763C2 (en) | 2014-03-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2722250C (en) | Process for the preparation of naphthalen-2-yl-pyrazol-3-one intermediates useful in the synthesis of sigma receptor inhibitors | |
EP3250554B1 (en) | A carboxamide derivative and its diastereomers in stable crystalline form | |
WO2009130331A1 (en) | 5-methyl-1-(naphthalen-2-yl)-1h-pyrazoles useful as sigma receptor inhibitors | |
JP6944682B2 (en) | Method for producing benzimidazole compound | |
US20150018562A1 (en) | Process for the preparation of phenyl substituted 3 - difluoromethyl - 1 -methyl - 1h - pyrazole - 4 - carboxylic acid n-methoxy- [1 -methyl- 2 phenylethyl] amides | |
BR112021015362A2 (en) | PYRAZOLE DERIVATIVES | |
CN105722829B (en) | The method of regio-selective synthesis pyrazoles | |
US6388091B1 (en) | Process for the preparation of 1,2,3,9-tetrahydro-9-methyl-3-{(2-methyl-1H-imidazol-1-yl)methyl}-4H-carbazol-4-one | |
EP2598469B1 (en) | Process for the preparation of 1-aryl-pyrazol-3-one intermediates useful in the synthesis of sigma receptors inhibitors | |
WO2018105492A1 (en) | Method for producing 3-(pyridyl-2-amino)propionitrile and analogues thereof | |
WO2005115989A1 (en) | Method for producing 1,5-diphenylpyrazole carboxylic acid derivatives | |
IL174957A (en) | Method for producing n-substituted 3??-aminonortropanes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980122965.5 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09735117 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011505524 Country of ref document: JP Ref document number: 3922/KOLNP/2010 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2722250 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009239889 Country of ref document: AU Ref document number: MX/A/2010/011677 Country of ref document: MX |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009735117 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2009239889 Country of ref document: AU Date of ref document: 20090424 Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20107026370 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010147938 Country of ref document: RU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12988922 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: PI0910675 Country of ref document: BR Kind code of ref document: A2 Effective date: 20101025 |