WO2004087702A2 - Procede de preparation enantioselective de derives de sulfoxydes. - Google Patents
Procede de preparation enantioselective de derives de sulfoxydes. Download PDFInfo
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- WO2004087702A2 WO2004087702A2 PCT/FR2004/000778 FR2004000778W WO2004087702A2 WO 2004087702 A2 WO2004087702 A2 WO 2004087702A2 FR 2004000778 W FR2004000778 W FR 2004000778W WO 2004087702 A2 WO2004087702 A2 WO 2004087702A2
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- 0 *C(*)(C(*)(*)O)N Chemical compound *C(*)(C(*)(*)O)N 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- 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
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
Definitions
- the present invention relates to a process for the enantioselective preparation of substituted sulfoxide derivatives, and more particularly to a process for the enantioselective preparation of compounds such as the enantiomers of tenatoprazole and other comparable sulfoxides.
- sulfoxide derivatives are known, and in particular pyridinyl-methyl-sulfinyl benzimidazoles, useful in therapeutics as medicaments having inhibitory properties of the proton pump, that is to say medicaments which inhibit the secretion of gastric acid and are useful for the treatment of gastric and duodenal ulcers.
- the first known derivative of the proton pump inhibitor series is omeprazole, or 5-methoxy-2- [[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] suifinyl] -lH- Benzimidazole described in patent EP 001,529, which has inhibitory properties for gastric acid secretion, and is widely used as an anti-ulcer in human therapy.
- benzimidazole derivatives with similar structure are known by their generic names, for example rabeprazole, pantoprazole, lansoprazole, which all have a structural analogy, and belong to the group of pyridinyl-methyl-sulfinyl-benzimidazoles.
- Tenatoprazole i.e. 5-methoxy-2- [[((4-metho-xy-3, 5-dimethyl-2-pyridyl) methyl] suifinyl] imidazo [, 5-b] pyridine , is described in patent EP 254,588. It is also one of the drugs considered to be proton pump inhibitors, and it can also be used in the treatment of gastroesophageal reflux, digestive bleeding and dyspepsia. All these compounds are sulfoxides having an asymmetry at the level of the sulfur atom and can therefore be in the form of a racemic mixture of two enantiomers.
- patent EP 652,872 describes a process for preparing the magnesium salt of the (-) enantiomer of omeprazole via the ester comprising a chiral acyloxymethyl group, separation of the diastereoisomers and solvolysis in an alkaline solution.
- US Patent 5,776,765 describes a process using the stereoselective bioreduction of the racemic mixture of the sulfoxide to the corresponding sulfide, using a microorganism comprising a DMSO reductase, making it possible to obtain a mixture highly enriched in (-) enantiomer relative to the (+) enantiomer.
- US Patent 5,948,789 relates to the enantioselective preparation of sulfoxides, and more particularly of the (-) enantiomer of omeprazole or of its sodium salts, by oxidation of the corresponding sulfide by a hydroperoxide in the presence of a titanium complex and a chiral ligand.
- the process described in this patent makes it possible to obtain a mixture enriched in one or the other of the enantiomers (-) and (+), according to the ligand used.
- the subject of the present invention is therefore a process for the enantioselective preparation of sulfoxide derivatives having an asymmetry at the level of the sulfur atom, providing either of the enantiomers with good purity and satisfactory yield.
- a very particular subject of the invention is a preparation process which provides, substantially enantio-selectively, the (-) enantiomer and the (+) enantiomer of tenatoprazole.
- substantially enantioselective means that the desired enantiomer is obtained selectively or in a predominant amount over the other enantiomer.
- an enantioselective oxidation of a sulfide of general formula (I) below is carried out
- A preferably represents a pyridyl group or a pyridyl group carrying one or more substituents chosen from linear or branched alkyl groups of 1 to 6 carbon atoms, linear or branched alkoxy of 1 to 6 carbon atoms, methyl or ethyl substituted by one or more halogen, amino, alkylamino or dialkylamino atoms where the alkyl part, linear or branched, contains 1 to 5 carbon atoms;
- B represents a heterocycle chosen from the benzimidazole or imidazo- groups
- [4, 5-b] -pyridyl substituted where appropriate by one or more linear or branched alkyl groups of 1 to 6 carbon atoms, linear or branched alkoxy of 1 to 6 carbon atoms, and preferably substituted on one or several carbons by a methyl, ethyl, methoxy or trihalogenomethyl group.
- A is preferably a 2-pyridyl group substituted by one or more methyl, ethyl, methoxy or trifluoromethyl groups, and more particularly a 4-methoxy-3, 5-dimethyl-2-pyridyl group.
- B is preferably a 5-methoxy-1H-benzimidazolyl or 5-methoxy-imidazo- [4,5-b] -pyridyl group.
- the sulfide of formula (I) above is a known product which can be prepared by various methods described in the literature, and for example by the methods described in patents EP 254,588 and EP 103,553.
- a sulfoxide of general formula A - CH 2 - SO - B (la) in which A and B have the above definitions is thus obtained.
- the oxidant used in the process of the invention is preferably a peroxide, for example hydrogen peroxide, or a hydroperoxide, for example 1 cumene or tert-butyl hydroperoxide.
- a peroxide for example hydrogen peroxide
- a hydroperoxide for example 1 cumene or tert-butyl hydroperoxide.
- hydrogen peroxide at high concentration for example greater than 30%
- hydrogen peroxide complexed by urea (UHP: urea hydrogen peroxide H 2 NCONH 2 .H 2 0 2 ) is used, ci- after also called "UHP".
- UHP hydrogen peroxide complexed by urea
- the catalyst based on tungsten or vanadium is an essential element of the process of the invention, which makes it possible to promote the reaction and to obtain the desired derivative with good yield.
- a catalyst is preferably used such as an oxo-vanadium complex (V), for example prepared from vanadium acetylacetonate VO (acac) 2 / or also a tungsten derivative, for example example prepared from tungsten trioxide 0 3 .
- V oxo-vanadium complex
- a tungsten derivative for example prepared from tungsten trioxide 0 3 .
- Such catalysts are commercially available.
- the choice of ligand constitutes another characteristic element of the invention because it is an inducer of chirality; it makes it possible to selectively orient the reaction towards the desired enantiomer.
- the ligand in the case of a vanadium-based catalyst, is preferably tridentate.
- the ligand can advantageously be represented by the following general formula (II):
- RO-CR ⁇ R 2 -CR 3 R 4 -NR 5 R 6 (II) where R is a hydrogen atom or a linear or branched alkyl group of 1 to 6 carbon atoms or an aryl or heteroaryl group;
- Ar is a 2 '-hydroxyphenyl group optionally substituted on the aryl group.
- Ri and R 3 , or R 2 and R 4 represent a hydrogen atom
- R 2 and R 4 , or Ri and R 3 are, independently of each other, alkyl groups linear or branched from 1 to 6 carbon atoms, an aryl group or together form a carbon ring of 5 or 6 carbon atoms or a bicyclic system with 9 or 10 carbon atoms one of the rings of which may be aromatic.
- alkyl groups linear or branched from 1 to 6 carbon atoms, an aryl group or together form a carbon ring of 5 or 6 carbon atoms or a bicyclic system with 9 or 10 carbon atoms one of the rings of which may be aromatic.
- an “aryl group” preferably means a mono- or polycyclic system having one or more aromatic rings among which mention may be made of the phenyl group, the naphthyl group, the tetrahydronaphthyl group, the indanyl group and the binaphthyl group.
- the aryl group may be substituted by 1 to 3 substituents chosen independently of one another from a hydroxyl group, a linear or branched alkyl group containing from 1 to 4 carbon atoms such as methyl, ethyl, propyl or preferably fcert-butyl, a nitro group, a (C ⁇ -C 4 ) alkoxy group and a halogen atom, such as chlorine, bromine or iodine,
- an “arylalkyl group” preferably means an aryl group linked to an alkyl group comprising from 1 to 4 carbon atoms
- an “alkoxycarbonyl group” preferably means an alkoxy group comprising from 1 to 4 carbon atoms linked to a group carbonyl, such as the methoxycarbonyl group
- heteroaryl group preferably means an aryl group comprising from 1 to 3 heteroatoms, such as nitrogen, sulfur or oxygen, and as such heteroaryl group mention may be made of pyridyl, pyrazinyl, pyridazinyl , quinolyl, isoquinolyl, etc,
- heterocycle or “heterocyclic group” preferably means a 5 or 6-membered ring containing from 1 to 3 heteroatoms such as sulfur, nitrogen and oxygen.
- This definition also contains bicycles where a heterocyclic group as defined above is fused with a phenyl group, a cyclohexane group or another heterocycle. Mention may be made, among heterocyclic groups, of imidazolyl, indolyl, isoxazolyl, furyl, pyrazolyl, thienyl, etc.
- a “heteroarylalkyl” group preferably means a heteroaryl group linked to an alkyl group containing from 1 to 4 carbon atoms, preferably methyl,
- heterocyclalkyl group preferably means a heterocyclic group linked to an alkyl group comprising from 1 to 4 carbon atoms, preferably methyl, such as 4-imidazolylmethyl.
- the ligand of formula (II) can in particular be a derivative:
- Ri, R 2 , R 3 and R 4 are as defined above.
- amino alcohols of formula (III) mention may especially be made of - (£ - (+) -) or D-valinol (R- ⁇ -) -2-amino-3-methyl-1-butanol), R - tert-leucinol (R- ⁇ -) -2-amino-3, 3-dimethyl-1-butanol) S- tert-leucinol ⁇ S- (+) -2-amino-3, 3-dimethyl-1- butanol), and (1S, 2R) - ⁇ -) - or (12 ?, 23) - (+) -1- amino-2 -indanol,
- R takes the definition of R 3 or R 4 as previously given.
- amino acids of formula (V) mention may in particular be made of L-valine or D-valine, -phenylalanine or D-phenylalanine, L-methionine or D-methionine, L-histidine or D-histidine and L-lysine or D-lysine. an amino ester of formula (VI)
- R ' takes the definition of R 3 or R 4 as previously given and R''takes the definition of R.
- R 7 represents 1 to 2 substituents chosen independently of one another from a hydroxyl group, a linear or branched alkyl group comprising from 1 to 4 carbon atoms such as methyl, ethyl, propyl or preferably tert -butyl, a nitro group, a group (C ⁇ -C 4 ) alkoxy and a halogen atom, such as chlorine, bromine or iodine.
- ligands of formula (II), derived from an amino alcohol of formula (III), for which R 5 and R s together represent with nitrogen a double bond - N CHAr
- Ar is an aryl group comprising from 1 to 3 substituents and at least one hydroxyl group
- Ar preferably being a phenyl group, Ri and R 3 , or R 2 and R 4 , represent a hydrogen atom, while that R 2 and R 4 , or R x and R 3 , respectively, are, independently of each other, linear or branched alkyl groups of 1 to 6 carbon atoms, preferably a group tert-butyl or together form a carbon ring of 5 or 6 carbon atoms or a bicyclic system with 9 or 10 carbon atoms in which one of the rings can be aromatic, preferably 1 indanyl.
- a ligand can advantageously be chosen according to the catalyst used, and for example in the case of tungsten,
- quinine alkaloids such as quinine, quinidine, dihydroquinidine (DHQD) or dihydroquinine (DHQ),
- quinine alkaloids such as 2,5-diphenyl-4,6-pyridinediyl hydroquinine diether (DHQ) 2 -PYR or 2,5-diphenyl-4,6-pyridinediyl hydroquinidine diether (DHQD ) 2 -PYR.
- a vanadium-based catalyst use is preferably made of a ligand represented by the formula (II) above comprising a substituent on nitrogen, and for example a Schiff base derived from a substituted salicylic aldehyde and a chiral amino alcohol.
- a vanadium catalyst taken in the form of vanadium acetylacetonate of a ligand derived from an amino alcohol or an amino ether respectively of formula (III) or (IV) defined above.
- a vanadium-based catalyst taken in the form of vanadium sulfate a ligand derived from an amino acid or from an amino ester of formula (V) or (VI) as defined above.
- the ligand (12 ?, 2S) - 1 - [2-hydroxy-3, 5-di-tert -butyl- benzylidene) -amino] -indan-2-ol, derived from amino-indanol as amino alcohol, is very particularly preferred.
- this ligand makes it possible to selectively orient the oxidation reaction of 5-methoxy-2- [[[4-methoxy-3, 5-dimethyl-2-pyridyl) methyl] thio] imidazo [4, 5-b] pyridine, to selectively obtain S-tenatoprazole, as indicated below.
- the reaction can be carried out in a solvent, and preferably in a mixture of solvents, in a neutral or weakly basic medium, by choosing a specific solvent for sulfide and a specific solvent ligand, chosen from the group consisting of methanol, tetrahydrofuran, dichloromethane, acetonitrile, toluene, acetone, chloroform, DMF (dimethylformamide) or NMP (N-methylpyrrolidinone), or in mixture.
- the base used can be a tertiary amine such as pyridine, di-isopropylethylamine or triethylamine.
- the process can be carried out without adding a base, but it is preferable to avoid working in an acid medium which could lead to degradation of the final product. It is very particularly advantageous, according to the invention, to use the vanadium-based catalyst and the ligand in solution in acetonitrile, while the sulphide is in solution in a chlorinated solvent such as dichloromethane, NMP or acetone and to combine the two solutions, then to act 1 oxidant.
- the oxidation reaction is easily carried out cold or at room temperature. It may be more advantageous to carry out the reaction at a temperature between 0 and 10 ° C and preferably about 4 to 5 ° C to promote enantioselectivity.
- the process of the invention is particularly advantageous insofar as the oxidant and the catalyst are widely available commercially, inexpensive and easy to use.
- the catalyst can be used effectively in very small amounts.
- the yield obtained as an enantiomer is excellent, and, in addition, the catalyst and the ligand can generally be recycled under good conditions without loss of the enantiomeric excess.
- (+) isomer, of configuration 2? Can also be obtained under excellent conditions of selectivity and yield by using as ligand 2,4-di-tert-butyl-6- [1S-hydroxymethyl- 2-methyl-propylimino) -methyl] -phenol, ⁇ 18, 22?) -1- [2-hydroxy-3, 5-di-tert-butyl-benzylidene) -amino] -indan-2-ol.
- the enantiomers (-) and (+) of tenatoprazole can be used in the form of salts, in particular of alkali or alkaline earth metal salt, and for example in the form of sodium, potassium, lithium, magnesium or calcium.
- These salts can be obtained from the (-) or (+) enantiomer of the previously isolated tenatoprazole, by salification reaction according to a usual method of the technique, for example by action of basic mineral reagents comprising alkaline or alkaline counter ions earthy.
- the enantiomers (-) and (+) can be obtained in optically pure form simply from the racemic mixture, by any suitable separation method, and more particularly by a method of preparative column chromatography, for example by chiral chromatography .
- the enantiomers thus separated can be used for controls.
- optical pure form is meant that
- the (-) enantiomer is substantially free of the enantiomer
- the principle of the chiral chromatography method is well known and is based on the difference in affinity between the (+) and (-) enantiomers and the chiral selector of the stationary phase. This method makes it possible to separate the enantiomers with a good yield.
- the (-) enantiomer of tenatoprazole corresponds to (-) - 5-methoxy-2- [[(4-methoxy-3, 5-dimethyl-2-pyridyl) methyl] sufinyl] imidazo [4, 5- b] pyridine, or (-) -tenatoprazole.
- This shape can be determined by optical rotation measurements according to the usual techniques.
- the optical angle of rotation of (-) -tenatoprazole is levorotatory in dimethylformamide, and its melting point is 130 ° C (decomposition).
- the racemic mixture used as starting material can be obtained by known methods, for example according to the method described in patent EP 254,588.
- it can be prepared by treating with an oxidizing agent, such as a perbenzoic acid, the corresponding sulfide originating from the condensation of a thiol and a pyridine, preferably in the presence of a base such as hydroxide.
- an oxidizing agent such as a perbenzoic acid
- the corresponding sulfide originating from the condensation of a thiol and a pyridine preferably in the presence of a base such as hydroxide.
- potassium in a suitable solvent, for example ethanol, hot.
- the enantiomers (-) and (+) of tenatoprazole in the treatment of the pathologies indicated below, can be administered in the usual forms suitable for the chosen mode of administration, for example by oral or parenteral route, preferably by oral route or intravenous. It is possible, for example, to use formulations of tablets or capsules containing one or the other of the enantiomers (-) and (+) of tenatoprazole as active ingredient, or alternatively oral solutions or emulsions or solutions for parenteral administration containing a tenatoprazole salt with a usual pharmaceutically acceptable carrier.
- the enantiomer salt of tenatoprazole can be chosen, for example, from sodium, potassium, lithium, magnesium or calcium salts.
- the (-) and (+) enantiomers of tenatoprazole obtained by the process of the present invention can be used in the manufacture of medicaments for the treatment of digestive pathologies, in particular those where an inhibition of acid secretion must be intense and prolonged, for the treatment of the symptoms and lesions of gastroesophageal reflux, digestive hemorrhages resistant to other inhibitors of the proton pump.
- the dosage is determined by the practitioner depending on the patient's condition and the severity of the condition. It is generally between 10 and 120 mg, preferably between
- Recrystallization is carried out in the methanol / water or DMF / ethyl acetate mixture and the enantiomer is obtained with an enantiomeric excess greater than 99%.
- the enantiomeric excess is determined by high pressure liquid chromatography with a CHIRALPAK AS-H 20 ⁇ m column (250 x 4.6 mm) at 25 ° C, the eluent is acetonitrile (1 mL / min) and detection is performed by UV spectroscopy at 305 nm.
- the retention time of the ⁇ S) - (-) isomer is 7.7 min and that of the (2?) - (+) isomer is 5.2 min.
- T F 129-130 ° C
- Example 2 Preparation of (2?) - (+) -tenatoprazole The procedure is as in Example 1, replacing (DHQD) 2 -PYR with (DHQ) 2 -PYR, causing 120 ml of hydrogen peroxide to act on the same amount of 5-methoxy-2- [[((4-methoxy-3, 5-dimethyl-2-pyridyl) methyl] thio] imidazo [4, 5-b] pyridine as in Example 1 and using the same catalyst.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006505762A JP2006523201A (ja) | 2003-03-28 | 2004-03-26 | スルホキシド誘導体をエナンチオ選択的に調製する方法 |
US10/551,037 US20060281782A1 (en) | 2003-03-28 | 2004-03-26 | Method for the enantioselective preparation of sulphoxide derivatives |
EP04742382A EP1608649A2 (fr) | 2003-03-28 | 2004-03-26 | Procede de preparation enantioselective de derives de sulfoxydes. |
CA002520157A CA2520157A1 (fr) | 2003-03-28 | 2004-03-26 | Procede de preparation enantioselective de derives de sulfoxydes |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0303914 | 2003-03-28 | ||
FR0303914A FR2852956B1 (fr) | 2003-03-28 | 2003-03-28 | Procede de preparation enantioselective de derives de sulfoxydes |
FR0314679A FR2863611B1 (fr) | 2003-12-15 | 2003-12-15 | Procede de preparation enantioselective de derives de sulfoxydes |
FR0314679 | 2003-12-15 |
Publications (2)
Publication Number | Publication Date |
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WO2004087702A2 true WO2004087702A2 (fr) | 2004-10-14 |
WO2004087702A3 WO2004087702A3 (fr) | 2004-11-11 |
Family
ID=33133109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2004/000778 WO2004087702A2 (fr) | 2003-03-28 | 2004-03-26 | Procede de preparation enantioselective de derives de sulfoxydes. |
Country Status (6)
Country | Link |
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US (1) | US20060281782A1 (fr) |
EP (1) | EP1608649A2 (fr) |
JP (1) | JP2006523201A (fr) |
KR (1) | KR20060002878A (fr) |
CA (1) | CA2520157A1 (fr) |
WO (1) | WO2004087702A2 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1801110A1 (fr) | 2005-12-22 | 2007-06-27 | KRKA, tovarna zdravil, d.d., Novo mesto | Sel d'arginine d'ésoméprazole |
WO2007088559A1 (fr) * | 2006-02-01 | 2007-08-09 | Jubilant Organosys Limited | Procédé de production de sulphoxydes substitués |
WO2008047681A1 (fr) | 2006-10-13 | 2008-04-24 | Eisai R & D Management Co., Ltd. | Benzimidazole présentant une activité inhibitrice de la sécrétion d'acide gastrique |
JP2008534446A (ja) * | 2005-03-25 | 2008-08-28 | リブゾン ファーマシューティカル グループ インク. | 置換スルホキシド化合物、その調製方法、およびその使用方法 |
CN1810803B (zh) * | 2006-02-17 | 2010-11-17 | 中国科学院上海有机化学研究所 | 高对映体选择性制备(s)-奥美拉唑的方法 |
EP2264024A1 (fr) | 2008-10-14 | 2010-12-22 | LEK Pharmaceuticals d.d. | Procédé de préparation d'inhibiteurs de la pompe à protons énantiomériquement enrichis |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2871800B1 (fr) * | 2004-06-17 | 2006-08-25 | Sidem Pharma Sa Sa | Sel de sodium monohydrate du s-tenatoprazole et application en therapeutique |
JP2009196894A (ja) * | 2006-10-13 | 2009-09-03 | Eisai R & D Management Co Ltd | スルフィニルベンズイミダゾール化合物またはその塩の製造方法 |
US7531666B2 (en) * | 2007-06-26 | 2009-05-12 | Syn-Tech Chem. & Pharm. Co., Ltd. | Method for preparing 2-(2-pyridinylmethylsulfinyl) benzimidazoles |
MX2012000583A (es) * | 2009-07-16 | 2012-02-13 | Bayer Cropscience Ag | Procedimiento para la preparacion de derivados de 3-triazolil-sulfoxido quirales. |
EP3239146A4 (fr) | 2014-12-26 | 2018-05-30 | The University of Tokyo | Procédé de fabrication d'un composé inhibiteur de la pompe à protons ayant une activité optique |
CN108623564B (zh) * | 2017-03-17 | 2022-11-04 | 江苏豪森药业集团有限公司 | 一种雷贝拉唑类似物的制备方法 |
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US5374730A (en) * | 1993-11-04 | 1994-12-20 | Torcan Chemical Ltd. | Preparation of omeprazole and lansoprazole |
-
2004
- 2004-03-26 EP EP04742382A patent/EP1608649A2/fr not_active Withdrawn
- 2004-03-26 JP JP2006505762A patent/JP2006523201A/ja active Pending
- 2004-03-26 US US10/551,037 patent/US20060281782A1/en not_active Abandoned
- 2004-03-26 WO PCT/FR2004/000778 patent/WO2004087702A2/fr active Application Filing
- 2004-03-26 KR KR1020057018234A patent/KR20060002878A/ko not_active Application Discontinuation
- 2004-03-26 CA CA002520157A patent/CA2520157A1/fr not_active Abandoned
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EP0137417A1 (fr) * | 1983-10-08 | 1985-04-17 | Bayer Ag | Procédé pour la préparation d'aminobenzène-alkyl sulfones ou d'aminobenzène-alkyl sulfoxydes |
EP0302720A1 (fr) * | 1987-08-04 | 1989-02-08 | Takeda Chemical Industries, Ltd. | Préparation de composés 2-(2-pyridylméthylsulfinyl)-benzimidazoliques |
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JP2008534446A (ja) * | 2005-03-25 | 2008-08-28 | リブゾン ファーマシューティカル グループ インク. | 置換スルホキシド化合物、その調製方法、およびその使用方法 |
JP4837722B2 (ja) * | 2005-03-25 | 2011-12-14 | リブゾン ファーマシューティカル グループ インク. | 置換スルホキシド化合物、その調製方法、およびその使用方法 |
EP1801110A1 (fr) | 2005-12-22 | 2007-06-27 | KRKA, tovarna zdravil, d.d., Novo mesto | Sel d'arginine d'ésoméprazole |
WO2007088559A1 (fr) * | 2006-02-01 | 2007-08-09 | Jubilant Organosys Limited | Procédé de production de sulphoxydes substitués |
CN1810803B (zh) * | 2006-02-17 | 2010-11-17 | 中国科学院上海有机化学研究所 | 高对映体选择性制备(s)-奥美拉唑的方法 |
WO2008047681A1 (fr) | 2006-10-13 | 2008-04-24 | Eisai R & D Management Co., Ltd. | Benzimidazole présentant une activité inhibitrice de la sécrétion d'acide gastrique |
EP2264024A1 (fr) | 2008-10-14 | 2010-12-22 | LEK Pharmaceuticals d.d. | Procédé de préparation d'inhibiteurs de la pompe à protons énantiomériquement enrichis |
Also Published As
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KR20060002878A (ko) | 2006-01-09 |
EP1608649A2 (fr) | 2005-12-28 |
CA2520157A1 (fr) | 2004-10-14 |
WO2004087702A3 (fr) | 2004-11-11 |
JP2006523201A (ja) | 2006-10-12 |
US20060281782A1 (en) | 2006-12-14 |
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