WO2005005406A1 - 4−アミノテトラヒドロピラン化合物及びその酸塩の製法、その合成中間体およびその製法 - Google Patents
4−アミノテトラヒドロピラン化合物及びその酸塩の製法、その合成中間体およびその製法 Download PDFInfo
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- WO2005005406A1 WO2005005406A1 PCT/JP2004/010010 JP2004010010W WO2005005406A1 WO 2005005406 A1 WO2005005406 A1 WO 2005005406A1 JP 2004010010 W JP2004010010 W JP 2004010010W WO 2005005406 A1 WO2005005406 A1 WO 2005005406A1
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- acid salt
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- aminotetrahydropyran
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no 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
- C07D309/10—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no 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
- C07D309/14—Nitrogen atoms not forming part of a nitro radical
Definitions
- the present invention relates to a novel method for producing a 4_aminotetrahydropyran compound and an acid salt thereof.
- the 4-aminotetrahydropyrani conjugate and its acid salt are useful compounds as raw materials for synthesis of pharmaceuticals, agricultural chemicals and the like.
- the present invention also relates to a 2-substituted tetrahydroviranyl-4-sulfonate and a method for producing the same.
- 2-Substituted tetrahydroviranyl-4-sulfonate is a compound useful as a raw material for pharmaceuticals, agricultural chemicals, etc. or as a synthetic intermediate.
- An object of the present invention is to provide an industrially suitable 4-aminotetrahydropyran compound capable of producing a 4-aminotetrahydropyrani conjugate and an acid salt thereof by a simple method without requiring complicated operations. And a process for preparing the acid salt thereof.
- Another object of the present invention is to solve the above problems and to produce a 2-substituted tetrahydroviranyl-4-sulfonate in a high yield under a mild condition by a simple method, which is industrially suitable.
- Another object of the present invention is to provide a 2-substituted tetrahydropyrael-4-sulfonate and a method for producing the same. Disclosure of the invention
- the present invention provides at least one selected from Raney nickel, a noble metal catalyst and a metal oxide.
- General formula (2)
- R represents a hydrogen atom or a hydrocarbon group
- the present invention provides (A) —general formula (3):
- R is as defined above, and X represents a leaving group.
- a hydrazine is reacted with a 4_-substituted-tetrahydropyran compound represented by the general formula (2)
- Equation (1) the first step as a product or an acid salt thereof, (B) Then, in the presence of at least one compound selected from Raney nickel, a noble metal catalyst and a metal oxide, the 4-hydrazinotetrahydropyrani conjugate or the acid salt thereof in the reaction solution is decomposed to give a general compound. Equation (1):
- the present invention also relates to the aforementioned general formula (2):
- R 1 represents a hydrocarbon group
- Y represents an organic sulfonic acid group
- the present invention also provides 3-buten-1-ol having the general formula (5):
- R 1 CHO Wherein R 1 is as defined above,
- R is a hydrogen atom or a hydrocarbon group.
- the hydrocarbon group include alkyl such as methyl, ethyl, propyl, butyl, pentyl, and hexyl.
- R is preferably a hydrogen atom, a methynole group, an ethyl group or a phenyl group.
- Examples of the acid salt of the above 4-hydrazinotetrahydropyran compound include salts of inorganic acids such as hydrochloric acid, hydrobromic acid, hydroiodic acid, hydrofluoric acid, sulfuric acid, and nitric acid, formic acid, acetic acid, and propionic acid.
- inorganic acids such as hydrochloric acid, hydrobromic acid, hydroiodic acid, hydrofluoric acid, sulfuric acid, and nitric acid, formic acid, acetic acid, and propionic acid.
- Examples of such a 4_hydrazinotetrahydropyrani conjugate include 4_hydrazinotetrahydropyran, 4-hydrazino_2-methyltetrahydropyran, 4_hydrazino-2-ethyltetrahydropyran, and 4_hydrazino- 2-n-propyltetrahydropyran, 4_hydrazino-2-phenyltetrahydropyran, and the like.
- Examples of these salts include salts of the above-mentioned acids, and preferably, hydrochloride, hydrobromide, sulfate, formate, methanesulfonate, p-toluenesulfonate, and the like.
- Raney nickele used in the decomposition reaction of the present invention is an alloy containing nickel and aluminum as main components, and preferably has a nickel content of 10 to 90% by mass, and more preferably nickel. 40-80% by weight is used. Normally, the power in which the expanded Raney nickel is used.
- Pretreated Raney nickel or stabilized Raney nickel can be used in various ways. Further, those containing metals such as cobalt, iron, lead, chromium, titanium, molybdenum, vanadium, manganese, tin, and tungsten in Raney Nickole can also be used.
- the amount of the Raney nickel used is preferably 0.01 to 1.0 g, more preferably 0.1 to 0.5 g, in terms of a nickel atom, based on the 4-hydrazinotetrahydrosilane compound or its salt lg.
- the noble metal catalyst used in the decomposition reaction of the present invention is a catalyst containing at least one of palladium and platinum.
- the amount of the noble metal catalyst used is preferably 0.00025-0.5 g, more preferably 0.0005-0.025 g, in terms of metal atom, based on 4-hydrazinotetrahydropyrani conjugate or its salt lg. is there.
- the metal oxide used for the decomposition reaction of the present invention includes various metal oxides, and is not particularly limited as long as the object of the present invention can be achieved.
- a metal oxide copper (I) oxide or copper oxide ( ⁇ ) is preferably used.
- the metal oxides may be used alone or in combination of two or more.
- the amount of the metal oxide to be used is preferably 0.00025 0.5 g, more preferably 0.0005 0.025 g, based on the 4-hydrazinotetrahydropyran compound or its salt lg.
- the decomposition reaction of the present invention is preferably performed in a solvent.
- the solvent to be used is not particularly limited as long as it does not inhibit the reaction, and examples thereof include water; methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n_butyl alcohol, sec-butyl alcohol, and t_butyl.
- Alcohols such as alcohols; aromatic hydrocarbons such as benzene, toluene, xylene and mesitylene; halogenated aliphatic hydrocarbons such as chloroform and dichloroethane; ethers such as getyl ether, tetrahydrofuran and diisopropyl ether.
- Power that can be used
- the amount of the solvent to be used is appropriately adjusted depending on the uniformity of the reaction solution, the stirring property, etc., but is preferably 0.1 to 100 ml, more preferably 1.0 to 10 ml, based on the 4-hydrazinotetrahydropyran compound lg. It is.
- the decomposition reaction of the present invention for example, at least one compound selected from a 4-hydrazinotetrahydropyran compound or an acid salt thereof, Raney nickel, a noble metal catalyst and a metal oxide, and a solvent are mixed and stirred.
- the reaction is performed by a method such as reaction.
- the reaction temperature at that time is preferably 20 to 120 ° C, more preferably 50 to 100 ° C, and the reaction pressure is not particularly limited, but is preferably 0.1 to 5 MPa, more preferably 0.1 to 2 MPa.
- the reaction time is not particularly limited as long as the reaction is completed.
- the final product, 4-aminotetrahydropyrani conjugate and its acid salt can be prepared, for example, by a general method such as filtration, concentration, distillation, recrystallization, and column chromatography after completion of the reaction. ⁇ Isolated and purified. It is desirable that Raney nickel in the reaction solution be removed by using amines such as triethylenamine, tetraethylenepentamine and pentaethylenehexamine after the completion of the reaction.
- 4-aminotetrahydropyran 4-amino-2-methyltetrahydropyran, 4-amino-2-ethylethyltetrahydropyran, 4-amino-2-n-propyltetrahydropyran, 4-amino-2-phenylphenylpyridone, etc.
- these salts include salts of the above-mentioned acids, and preferably, hydrochloride, hydrobromide, sulfate, formate, methanesulfonate, p-toluenesulfonate, and the like.
- the 4-hydrazinotetrahydropyran compound represented by the formula (2) used in the above decomposition reaction can be produced by the following (A) first step.
- the first step of the present invention is a step of reacting a 4-substituted-tetrahydropyran compound with hydrazine to obtain a reaction solution containing a 4-hydrazinotetrahydropyran compound or an acid salt thereof as a main product.
- the 4-substituted-tetrahydropyran compound used in the first step of the present invention is represented by the general formula (3).
- R has the same meaning as described above.
- X is a leaving group, for example, a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom and an iodine atom; a methanesulfonyloxy group, an ethanesulfonyloxy group and a 1-propanesulfonyloxy Alkylsulfonyloxy group such as a 2-propanesulfonyloxy group; benzenesulfonyloxy group, p-toluenesulfonyloxy group, 2,4,6-trimethinolenebenzenesulfonyloxy group, 2,4,6 _Triisopropylbenzenesulfonyloxy, 1-naphthalenesulfonyloxy, 2-naphthalenesulfonyloxy, p-methoxybenzenesulfonyloxy, p-cyclobenzenesulfonyloxy, 0-nitro
- the amount of hydrazine used in the first step of the present invention is preferably 1.0 to 20.0 mol, more preferably 4.0 to 15.0 mol, per 1 mol of the 4-substituted-tetrahydropyrani conjugate.
- the hydrazine may be in the form of an anhydride (free hydrazine), a hydrate or an acid salt, or an aqueous solution (including a salt obtained by neutralizing an acid salt with a base), or may be in a displaced form.
- the first step of the present invention is preferably performed in a solvent.
- the solvent used is not particularly limited as long as it does not inhibit the reaction.
- examples include water, methanol, ethanol, n-propanol alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, and t_butyl.
- Alcohols such as alcohols; aromatic hydrocarbons such as benzene, toluene, xylene and mesitylene; halogenated aliphatic hydrocarbons such as chloroform and dichloroethane; ethers such as getyl ether, tetrahydrofuran and diisopropyl ether.
- water, alcohols, and more preferably water, methanol, ethanol, and isopropyl alcohol are used.
- These organic solvents may be used alone or in combination of two or more.
- the amount of the solvent to be used is appropriately adjusted depending on the uniformity of the reaction solution, the stirring property, and the like. It is 0.5-10 ml.
- the first step of the present invention is carried out by, for example, a method of mixing a 4_-substituted-tetrahydrovirane compound, hydrazine and an organic solvent and reacting them with stirring in an inert gas atmosphere. Be done.
- the reaction temperature at that time is preferably 20 to 120 ° C, more preferably 50 to 100 ° C, and the reaction pressure is not particularly limited.
- the reaction time is not particularly limited as long as the reaction is completed.
- reaction solution containing a 4-hydrazinotetrahydropyran compound or an acid salt thereof as a main product is obtained, and the volume of the reaction solution is adjusted as it is or by concentration or the like. Later, it is used in the next (B) second step.
- the second step can be carried out in the same manner as in the decomposition reaction of the 4-hydrazinotetrahydropyran compound to the 4-aminotetrahydropyran compound.
- R 1 is a hydrocarbon group, and examples of the hydrocarbon group include the same hydrocarbon group as R in the above formula (1), for example, a methyl group, an ethyl group, Alkyl groups such as propyl, butyl, pentyl and hexyl groups; cycloalkyl groups such as cyclopropyl group, cyclobutyl group, cyclopentyl group and cyclohexynole group; aralkyl groups such as benzyl group and phenethyl group; And aryl groups such as a noryl group, a tolyl group, a naphthyl group and an anthranyl group. These groups also include various isomers. In the present invention, among these, R 1 is preferably
- Y is an organic sulfonic acid group, for example, an alkylsulfonic acid group such as a methanesulfonic acid group, an ethanesulfonic acid group, and a trifluoromethanesulfonic acid group; a benzenesulfonic acid group, a p-toluenesulfonic acid group, and aryl sulfonic acid groups such as p-chloro benzene sulfonic acid group and p-bromobenzene sulfonic acid group.
- an alkylsulfonic acid group such as a methanesulfonic acid group, an ethanesulfonic acid group, and a trifluoromethanesulfonic acid group
- a benzenesulfonic acid group a p-toluenesulfonic acid group
- aryl sulfonic acid groups such as p-chloro benzene
- 2-substituted tetrahydropyran_4_sulfonate represented by the formula (4) for example, 2-methyltetrahydropyran-4-methanesulfonate, 2-methyltetrahydropyran-4-ethanesulfonate, 2-methyltetrahydropyran-4-trifluoromethanesulfonate, 2-methyltetrahydropyran-4-benzenesulfonate, 2-methyltetrahydropyran-4-p-toluenesulfonate, 2-methyltetrahydropyran-4_p-chlorobenzenebenzenesulfonate, 2-methyltetrahydropyran-4-p-bromobenzenesulfonate, 2-ethyltetrahydropyran-4 -Methanesulfonate, 2-ethyltetrahydropyran-4-ethanesulfonate, 2-ethynole tetrahydr
- aldehyde compound, its multimer or acetal compound used in the reaction of the present invention is represented by the above general formula (5).
- R 1 has the same meaning as described above.
- aldehyde compounds include alkyl aldehydes such as acetoaldehyde, propionaldehyde, butyl anolaldehyde, isobutyraldehyde, valeraldehyde, isovaleraldehyde, benzaldehyde, 0-tolylaldehyde, m-tolylaldehyde, And arylaldehyde such as P-tolylaldehyde.
- alkyl aldehydes such as acetoaldehyde, propionaldehyde, butyl anolaldehyde, isobutyraldehyde, valeraldehyde, isovaleraldehyde, benzaldehyde, 0-tolylalde
- Examples of the multimer of the aldehyde compound include, for example, paraaldehyde, methaldehyde, and parapropionaldehyde.
- Examples of the acetal form include, for example, acetoaldehyde dimethyl acetal and aceto aldehyde jade. Tilacetal and the like.
- the amount of the aldehyde compound, its multimer or acetal compound to be used is preferably 1.0 to 5.0 moles, more preferably 1.1 to 2.0 moles per mole of 3-buten_1_ol in terms of aldehyde. .
- the organic sulfonic acid used in the reaction of the present invention includes, for example, methane sulfone Alkyl sulfonic acids such as acid, ethanesulfonic acid and trifluoromethanesulfonic acid; and aryl sulfonic acids such as benzenesulfonic acid, p-toluenesulfonic acid, p-chlorobenzenesulfonic acid and p-bromobenzenesulfonic acid.
- methane sulfone Alkyl sulfonic acids such as acid, ethanesulfonic acid and trifluoromethanesulfonic acid
- aryl sulfonic acids such as benzenesulfonic acid, p-toluenesulfonic acid, p-chlorobenzenesulfonic acid and p-bromobenzenesulfonic acid.
- the amount of the organic sulfonic acid to be used is preferably 1 mol of 3-buten-1-ol,
- the reaction of the present invention is desirably performed in the presence of an organic solvent.
- the organic solvent used is not particularly limited as long as it does not inhibit the reaction, and examples thereof include aromatic hydrocarbons such as benzene, toluene, xylene, and mesitylene; halogenated aliphatic hydrocarbons such as chloroform and dichloroethane. Hydrogens; carboxylic esters such as ethyl acetate, propyl acetate and butyl acetate; ethers such as tetrahydrofuran, dimethoxyethane, diisopropyl ether; and nitriles such as acetonitrile, propionitrile, etc.
- aromatic Hydrocarbons, ethers, carboxylic esters, and more preferably aromatic hydrocarbons are used. These organic solvents may be used alone or in combination of two or more.
- the amount of the organic solvent to be used is appropriately adjusted depending on the uniformity and stirring properties of the reaction solution, but is preferably 0.1 to 50 ml, more preferably 0.1 to 10 ml, based on 3-buten-1-ol lg. It is.
- the reaction of the present invention is carried out, for example, by a method of mixing 3-buten-1-ol, an aldehyde compound, an organic sulfonic acid, and an organic solvent and reacting them while stirring.
- the reaction temperature at that time is preferably 10 to 80 ° C, more preferably 20 to 60 ° C, and the reaction pressure is not particularly limited.
- the reaction time is not particularly limited as long as the reaction is completed.
- the final product, 2-substituted tetrahydropyran-4-sulfonate is isolated by a general method such as filtration, concentration, distillation, recrystallization, and column chromatography after completion of the reaction. 'Purified.
- Example 1 In a 500 ml glass flask equipped with a stirrer, thermometer and reflux condenser, 134.7 g (710 mmol) of 95% pure tetrahydroviranyl-4-methanesulfonate, 256 ml (5.27 mol) of hydrazine monohydrate ) And 256 ml of ethanol, and reacted at 70-80 ° C for 3 hours with stirring under a nitrogen atmosphere. After completion of the reaction, the reaction solution was cooled to room temperature, 98 ml (784 mmol) of an 8 mol / l sodium hydroxide aqueous solution was added, and the mixture was concentrated under reduced pressure.
- the concentrate was filtered after adding 50 ml of toluene, and the filtrate was again concentrated under reduced pressure. Cool the concentrate to 0 ° C, After adding 50 ml of methanol and 6.5 ml (78 mmol) of 12 mol / l hydrochloric acid, the mixture was concentrated under reduced pressure. The concentrate was recrystallized from ethanol and toluene to obtain 2.8 g of 4-hydrazinotetrahydropyran hydrochloride having a purity of 99% (area percentage by gas chromatography) as colorless crystals (isolation yield: 34%).
- 2-methyltetrahydroviranyl-4-methanesulfonate with a purity of 80% synthesized by the same method as in Example 16 described later 10.0 g (41.2 mmol), 20 ml (412 mmol) of hydrazine monohydrate and 20 ml of ethanol were added, and the mixture was reacted at 75 ° C. for 3 hours with stirring under a nitrogen atmosphere. After the completion of the reaction, the reaction solution was cooled to room temperature, 9.45 g (49 mmol) of a 28% by weight sodium methoxide methanol solution was added, and the mixture was concentrated under reduced pressure.
- reaction solution tetraethylenepentamine (2072 ml, 10.9 mol) and n-butyl alcohol (4100 ml) were placed in a 20-liter glass flask equipped with a stirrer, a thermometer, a dropping funnel, a reflux condenser, and a vacuum distillation apparatus. was added, and the mixture was stirred at 80 ° C. for 2 hours under reduced pressure.
- 4-aminotetrahydropyran and n-butyl alcohol were azeotropically distilled off under reduced pressure.
- 4100 ml of n-butyl alcohol was added again, and 4_aminotetrahydropyran and n_butyl alcohol were azeotropically distilled off under reduced pressure.
- 2-Methyltetrahydropyran-4-methanesulfonate is a novel compound having the following physical properties.
- 4-aminotetrahydrovilla can be prepared by a simple method without requiring complicated operations.
- Industrially suitable 4-aminotetrahydropyrani conjugate and a method for producing the acid salt thereof which can produce the compound and the acid salt thereof.
- an industrially suitable 2-substituted tetrahydropyrael-4 capable of producing a 2-substituted tetrahydroviranyl-4-sulfonate in a high yield by a simple method under mild conditions. -Sulfonate and its production method can be provided.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyrane Compounds (AREA)
- Catalysts (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004800202116A CN1823051B (zh) | 2003-07-14 | 2004-07-14 | 4-氨基四氢吡喃化合物及其酸盐的制造方法、其合成中间体及其制造方法 |
| JP2005511576A JP4591349B2 (ja) | 2003-07-14 | 2004-07-14 | 4−アミノテトラヒドロピラン化合物及びその酸塩の製法、その合成中間体およびその製法 |
| EP04747476A EP1661894A4 (en) | 2003-07-14 | 2004-07-14 | METHOD FOR PRODUCING 4-AMINOTETRAHYDROPYRANES AND THEIR SALTS WITH ACIDS, INTERMEDIATE PRODUCTS FOR THE METHOD AND METHOD FOR THE PRODUCTION THEREOF |
| US10/564,709 US7365215B2 (en) | 2003-07-14 | 2004-07-14 | Process for preparing 4-aminotetrahydropyran compound and an acid salt thereof, synthetic intermediate thereof and process for preparing the same |
Applications Claiming Priority (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-196229 | 2003-07-14 | ||
| JP2003196229 | 2003-07-14 | ||
| JP2003288324 | 2003-08-07 | ||
| JP2003-288324 | 2003-08-07 | ||
| JP2003-300129 | 2003-08-25 | ||
| JP2003300129 | 2003-08-25 | ||
| JP2003342771 | 2003-10-01 | ||
| JP2003-342771 | 2003-10-01 | ||
| JP2004-079883 | 2004-03-19 | ||
| JP2004079883 | 2004-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005005406A1 true WO2005005406A1 (ja) | 2005-01-20 |
Family
ID=34069404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/010010 Ceased WO2005005406A1 (ja) | 2003-07-14 | 2004-07-14 | 4−アミノテトラヒドロピラン化合物及びその酸塩の製法、その合成中間体およびその製法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7365215B2 (ja) |
| EP (1) | EP1661894A4 (ja) |
| JP (1) | JP4591349B2 (ja) |
| CN (1) | CN1823051B (ja) |
| WO (1) | WO2005005406A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10494221B2 (en) | 2015-10-16 | 2019-12-03 | O&M Halyard, Inc. | Method and system for splicing nose wire in a facemask manufacturing process |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2493875B1 (en) | 2009-10-27 | 2014-08-06 | Boehringer Ingelheim International GmbH | Heterocyclic compounds as ccr1 receptor antagonists |
| CN102030734A (zh) * | 2010-09-26 | 2011-04-27 | 苏州汉德创宏生化科技有限公司 | 手性医药中间体3-氨基四氢吡喃及其盐的合成方法 |
| CN102993144B (zh) * | 2012-12-07 | 2016-04-13 | 青岛前线生物工程有限公司 | 4-氨基四氢吡喃的一锅法合成工艺 |
| CN108864018A (zh) * | 2018-06-18 | 2018-11-23 | 苏州盖德精细材料有限公司 | 一种重要中间体4-氨基四氢吡喃的制备方法 |
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| JPH0830867B2 (ja) * | 1986-09-30 | 1996-03-27 | コニカ株式会社 | 得られる色素画像の保存性が良好で液中の硫化が防止される写真用処理液 |
| AU698487B2 (en) | 1995-08-05 | 1998-10-29 | British Biotech Pharmaceuticals Limited | Imidazopyridine derivatives |
| AU1735497A (en) | 1996-02-26 | 1997-09-10 | Sumitomo Pharmaceuticals Company, Limited | Sulfonylureidopyrazole derivatives |
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2004
- 2004-07-14 EP EP04747476A patent/EP1661894A4/en not_active Withdrawn
- 2004-07-14 JP JP2005511576A patent/JP4591349B2/ja not_active Expired - Fee Related
- 2004-07-14 WO PCT/JP2004/010010 patent/WO2005005406A1/ja not_active Ceased
- 2004-07-14 US US10/564,709 patent/US7365215B2/en not_active Expired - Fee Related
- 2004-07-14 CN CN2004800202116A patent/CN1823051B/zh not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6348550A (ja) * | 1986-08-18 | 1988-03-01 | Konica Corp | ハロゲン化銀カラ−写真感光材料の処理方法 |
| JPS6348548A (ja) * | 1986-08-19 | 1988-03-01 | Konica Corp | ハロゲン化銀カラ−写真感光材料用発色現像液 |
| JPH107658A (ja) * | 1996-02-26 | 1998-01-13 | Sumitomo Pharmaceut Co Ltd | スルホニルウレイドピラゾール誘導体 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10494221B2 (en) | 2015-10-16 | 2019-12-03 | O&M Halyard, Inc. | Method and system for splicing nose wire in a facemask manufacturing process |
Also Published As
| Publication number | Publication date |
|---|---|
| US7365215B2 (en) | 2008-04-29 |
| CN1823051B (zh) | 2010-07-07 |
| US20070106083A1 (en) | 2007-05-10 |
| EP1661894A1 (en) | 2006-05-31 |
| CN1823051A (zh) | 2006-08-23 |
| JPWO2005005406A1 (ja) | 2007-09-20 |
| EP1661894A4 (en) | 2007-02-28 |
| JP4591349B2 (ja) | 2010-12-01 |
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