AU628100B2 - Process for the preparation of 3,5-dimethyl-4-methoxy- pyridine derivatives and novel intermediate for said preparation - Google Patents
Process for the preparation of 3,5-dimethyl-4-methoxy- pyridine derivatives and novel intermediate for said preparation Download PDFInfo
- Publication number
- AU628100B2 AU628100B2 AU44657/89A AU4465789A AU628100B2 AU 628100 B2 AU628100 B2 AU 628100B2 AU 44657/89 A AU44657/89 A AU 44657/89A AU 4465789 A AU4465789 A AU 4465789A AU 628100 B2 AU628100 B2 AU 628100B2
- Authority
- AU
- Australia
- Prior art keywords
- dimethyl
- methoxy
- preparation
- give
- process according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- NBZVILUCDBYYIE-UHFFFAOYSA-N 4-methoxy-3,5-dimethylpyridine Chemical class COC1=C(C)C=NC=C1C NBZVILUCDBYYIE-UHFFFAOYSA-N 0.000 title claims description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- PSEPRWKZZJWRCB-UHFFFAOYSA-N (4-methoxy-3,5-dimethylpyridin-2-yl)methanol Chemical compound COC1=C(C)C=NC(CO)=C1C PSEPRWKZZJWRCB-UHFFFAOYSA-N 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- CNPVFVHYBKQINB-UHFFFAOYSA-N (4-methoxy-3,5-dimethylpyridin-2-yl)methanamine Chemical compound COC1=C(C)C=NC(CN)=C1C CNPVFVHYBKQINB-UHFFFAOYSA-N 0.000 claims abstract description 10
- KUUHFNGGLJKJIZ-UHFFFAOYSA-N 4-methoxy-3,5-dimethylpyridine-2-carbonitrile Chemical compound COC1=C(C)C=NC(C#N)=C1C KUUHFNGGLJKJIZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- SRKVJDYNPSMHJM-UHFFFAOYSA-N 2-(chloromethyl)-4-methoxy-3,5-dimethylpyridine Chemical compound COC1=C(C)C=NC(CCl)=C1C SRKVJDYNPSMHJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000009903 catalytic hydrogenation reaction Methods 0.000 claims abstract 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000543 intermediate Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 239000007868 Raney catalyst Substances 0.000 claims description 8
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims description 8
- 229910000564 Raney nickel Inorganic materials 0.000 claims description 8
- 238000005984 hydrogenation reaction Methods 0.000 claims description 8
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 8
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000003085 diluting agent Substances 0.000 claims description 7
- 229960000583 acetic acid Drugs 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- 235000010288 sodium nitrite Nutrition 0.000 claims description 4
- 239000003929 acidic solution Substances 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 239000003701 inert diluent Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 claims 1
- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical compound O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 claims 1
- 238000005660 chlorination reaction Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000000203 mixture Substances 0.000 description 11
- 239000012074 organic phase Substances 0.000 description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 239000011734 sodium Substances 0.000 description 5
- HWWYDZCSSYKIAD-UHFFFAOYSA-N 3,5-dimethylpyridine Chemical compound CC1=CN=CC(C)=C1 HWWYDZCSSYKIAD-UHFFFAOYSA-N 0.000 description 4
- 150000001204 N-oxides Chemical class 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 238000006193 diazotization reaction Methods 0.000 description 3
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- JKZKJKZSYMCJTG-UHFFFAOYSA-M 1,4-dimethoxy-3,5-dimethylpyridin-1-ium;methyl sulfate Chemical compound COS([O-])(=O)=O.COC1=C(C)C=[N+](OC)C=C1C JKZKJKZSYMCJTG-UHFFFAOYSA-M 0.000 description 2
- GFYHSKONPJXCDE-UHFFFAOYSA-N 2,3,5-trimethylpyridine Chemical compound CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 description 2
- HPYNZHMRTTWQTB-UHFFFAOYSA-N 2,3-dimethylpyridine Chemical compound CC1=CC=CN=C1C HPYNZHMRTTWQTB-UHFFFAOYSA-N 0.000 description 2
- LCJDHJOUOJSJGS-UHFFFAOYSA-N 2-(chloromethyl)-4-methoxy-3,5-dimethylpyridin-1-ium;chloride Chemical compound Cl.COC1=C(C)C=NC(CCl)=C1C LCJDHJOUOJSJGS-UHFFFAOYSA-N 0.000 description 2
- SSTLCMOZTCLOLQ-UHFFFAOYSA-N 3,5-dimethyl-1-oxidopyridin-1-ium Chemical compound CC1=CC(C)=C[N+]([O-])=C1 SSTLCMOZTCLOLQ-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008707 rearrangement Effects 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- RDXXAIGOEPIQPK-UHFFFAOYSA-N (3-methoxypyridin-2-yl)methanol Chemical compound COC1=CC=CN=C1CO RDXXAIGOEPIQPK-UHFFFAOYSA-N 0.000 description 1
- SGKAHGGNLZRWQM-UHFFFAOYSA-N (4-methoxypyridin-2-yl)methanamine Chemical compound COC1=CC=NC(CN)=C1 SGKAHGGNLZRWQM-UHFFFAOYSA-N 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- YMBLTOGTYNFTRX-UHFFFAOYSA-N 2,3,5-trimethyl-4-nitro-1-oxidopyridin-1-ium Chemical compound CC1=C[N+]([O-])=C(C)C(C)=C1[N+]([O-])=O YMBLTOGTYNFTRX-UHFFFAOYSA-N 0.000 description 1
- FNOUXTVKTVUSAM-UHFFFAOYSA-N 2,4-dichloro-3,5,6-trimethylpyridine Chemical compound CC1=NC(Cl)=C(C)C(Cl)=C1C FNOUXTVKTVUSAM-UHFFFAOYSA-N 0.000 description 1
- UODFFWGYSJVFCZ-UHFFFAOYSA-N 2-(chloromethyl)-4-methoxypyridine Chemical compound COC1=CC=NC(CCl)=C1 UODFFWGYSJVFCZ-UHFFFAOYSA-N 0.000 description 1
- VLKVMXPKEDVNBO-UHFFFAOYSA-N 3,5-dimethyl-4-nitro-1-oxidopyridin-1-ium Chemical compound CC1=C[N+]([O-])=CC(C)=C1[N+]([O-])=O VLKVMXPKEDVNBO-UHFFFAOYSA-N 0.000 description 1
- GHQUICJCVQVURM-UHFFFAOYSA-N 3,5-dimethyl-4-nitropyridine-2-carbonitrile Chemical compound CC1=CN=C(C#N)C(C)=C1[N+]([O-])=O GHQUICJCVQVURM-UHFFFAOYSA-N 0.000 description 1
- DGFZETPZVVBGDX-UHFFFAOYSA-N 4-hydroxy-3,5,6-trimethyl-1h-pyridin-2-one Chemical compound CC=1NC(O)=C(C)C(=O)C=1C DGFZETPZVVBGDX-UHFFFAOYSA-N 0.000 description 1
- JOXZAMWCPXYFKC-UHFFFAOYSA-N 4-methoxy-2,3,5-trimethyl-1-oxidopyridin-1-ium Chemical compound COC1=C(C)C=[N+]([O-])C(C)=C1C JOXZAMWCPXYFKC-UHFFFAOYSA-N 0.000 description 1
- LELDJUYQEMKHJH-UHFFFAOYSA-N 4-methoxy-2,3,5-trimethylpyridine Chemical compound COC1=C(C)C=NC(C)=C1C LELDJUYQEMKHJH-UHFFFAOYSA-N 0.000 description 1
- JSQFDZRGFDNEHX-UHFFFAOYSA-N 4-methoxy-2,3-dimethyl-1-oxidopyridin-1-ium Chemical compound COC1=CC=[N+]([O-])C(C)=C1C JSQFDZRGFDNEHX-UHFFFAOYSA-N 0.000 description 1
- 241001123248 Arma Species 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 239000000362 adenosine triphosphatase inhibitor Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- UPQZOUHVTJNGFK-UHFFFAOYSA-N diethyl 2-methylpropanedioate Chemical compound CCOC(=O)C(C)C(=O)OCC UPQZOUHVTJNGFK-UHFFFAOYSA-N 0.000 description 1
- -1 dimethoxy-3,5-dimethylpyridinium methylsulphate Chemical compound 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- AHHWYDQKFSHGNI-WAYWQWQTSA-N ethyl (z)-3-amino-2-methylbut-2-enoate Chemical compound CCOC(=O)C(\C)=C(\C)N AHHWYDQKFSHGNI-WAYWQWQTSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- DVSDBMFJEQPWNO-UHFFFAOYSA-N methyllithium Chemical compound C[Li] DVSDBMFJEQPWNO-UHFFFAOYSA-N 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
- C07D213/30—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/62—Oxygen or sulfur atoms
- C07D213/63—One oxygen atom
- C07D213/68—One oxygen atom attached in position 4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Manufacture Of Tobacco Products (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0278988A AT391693B (de) | 1988-11-15 | 1988-11-15 | Verfahren zur herstellung von 3-5-dimethyl-4methoxypyridinderivaten sowie neues zwischenprodukt hierfuer |
| AT2789/88 | 1988-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU4465789A AU4465789A (en) | 1990-05-24 |
| AU628100B2 true AU628100B2 (en) | 1992-09-10 |
Family
ID=3540308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU44657/89A Ceased AU628100B2 (en) | 1988-11-15 | 1989-11-14 | Process for the preparation of 3,5-dimethyl-4-methoxy- pyridine derivatives and novel intermediate for said preparation |
Country Status (24)
| Country | Link |
|---|---|
| US (1) | US5066810A (en, 2012) |
| EP (1) | EP0369208B1 (en, 2012) |
| JP (1) | JPH02180868A (en, 2012) |
| KR (1) | KR900007803A (en, 2012) |
| CN (1) | CN1042705A (en, 2012) |
| AT (2) | AT391693B (en, 2012) |
| AU (1) | AU628100B2 (en, 2012) |
| CA (1) | CA2002757A1 (en, 2012) |
| CS (1) | CS276357B6 (en, 2012) |
| DD (1) | DD284877A5 (en, 2012) |
| DE (2) | DE3840372A1 (en, 2012) |
| DK (1) | DK568989A (en, 2012) |
| ES (1) | ES2053906T3 (en, 2012) |
| FI (1) | FI895389A7 (en, 2012) |
| GR (1) | GR3007391T3 (en, 2012) |
| HU (1) | HU207995B (en, 2012) |
| IL (1) | IL92152A (en, 2012) |
| NO (1) | NO894410L (en, 2012) |
| NZ (1) | NZ231252A (en, 2012) |
| PH (1) | PH25813A (en, 2012) |
| PT (1) | PT92307B (en, 2012) |
| SU (1) | SU1745121A3 (en, 2012) |
| YU (1) | YU216389A (en, 2012) |
| ZA (1) | ZA898273B (en, 2012) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2024357A6 (es) * | 1990-12-05 | 1992-02-16 | Genesis Para La Investigacion | Procedimiento de obtencion de halohidrato de 2-halometil-3,5-dimetil-4-metoxipiri-dina. |
| ES2035767B1 (es) * | 1991-04-05 | 1994-02-01 | Genesis Para La Investigacion | Procedimiento de obtencion de 2-hidroximetil-3,5-dimetilpiridinas 4-sustituidas. |
| DE4411657A1 (de) * | 1994-04-02 | 1995-10-05 | Basf Ag | Verfahren zur Herstellung von 6-Hydroxymethylchinolinen |
| ES2097089B1 (es) * | 1995-02-01 | 1997-12-16 | Esteve Quimica Sa | Procedimiento para la preparacion de 2-hidroximetil-3,5-dimetil-4-metoxipiridina. |
| US5625069A (en) * | 1996-07-22 | 1997-04-29 | Development Center For Biotechnology | Process for preparing 2-cyano-3,5-dimethyl-4-methoxypyridine |
| US5616713A (en) * | 1996-07-22 | 1997-04-01 | Development Center For Biotechnology | Process of preparing 2-hydroxymethyl-3,5-dimethyl-4-methoxypyridine |
| US6437139B1 (en) | 1997-05-06 | 2002-08-20 | Pdi-Research Laboratories, Inc. | Synthesis of pharmaceutically useful pyridine derivatives |
| CA2204580A1 (en) * | 1997-05-06 | 1998-11-06 | Michel Zoghbi | Synthesis of pharmaceutically useful pyridine derivatives |
| GB0025616D0 (en) * | 2000-10-19 | 2000-12-06 | Aventis Cropscience Sa | Novel process |
| JP4922534B2 (ja) * | 2000-08-25 | 2012-04-25 | バイエル・クロツプサイエンス・エス・アー | ２−アミノエチルピリジンの調製方法 |
| BR0113259B1 (pt) | 2000-08-25 | 2014-09-02 | Bayer Cropscience Sa | Processo para a preparação de um composto 2-aminometilpiridina de fórmula (I) |
| EP1422221A1 (en) * | 2002-11-20 | 2004-05-26 | Bayer CropScience SA | Novel process for the preparation of 2-aminomethylpyridine derivative |
| EP2114919A2 (en) | 2007-01-31 | 2009-11-11 | Krka Tovarna Zdravil, D.D., Novo Mesto | Process for the preparation of optically pure omeprazole via salt formation with a chiral amine or treatment with an entiomer converting enzyme and chromatographic seperation |
| CN101648907B (zh) * | 2009-09-14 | 2011-08-03 | 南京第一农药集团有限公司 | 2-氯甲基-4-甲氧基-3,5-二甲基吡啶盐酸盐的纯化方法 |
| CN101648912B (zh) * | 2009-09-14 | 2012-07-04 | 南京第一农药集团有限公司 | 一种4-硝基-3,5-二甲基吡啶-n-氧化物的连续化制备方法 |
| CN102603620B (zh) * | 2012-01-13 | 2014-10-29 | 江苏中邦制药有限公司 | 一种氯甲基吡啶或其吡啶衍生物盐酸盐的合成方法 |
| WO2014091450A1 (en) * | 2012-12-12 | 2014-06-19 | Ranbaxy Laboratories Limited | Process for the preparation of rabeprazole |
| CN114805193B (zh) * | 2022-04-19 | 2023-06-20 | 南京红太阳医药研究院有限公司 | 一种奥美拉唑中间体的制备方法 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3829429A (en) * | 1970-01-07 | 1974-08-13 | Du Pont | Catalytic synthesis of substituted pyridines from acetylenes and nitriles |
| SE7804231L (sv) * | 1978-04-14 | 1979-10-15 | Haessle Ab | Magsyrasekretionsmedel |
| US4159382A (en) * | 1978-06-28 | 1979-06-26 | The Dow Chemical Company | Process for preparing picolylamine |
| US4472409A (en) * | 1981-11-05 | 1984-09-18 | Byk Gulden Lomberg Chemische Fabrik Gesellschaft Mit Beschrankter Haftung | 2-Pyridylmethyl thio(sulfinyl)benzimidazoles with gastric acid secretion inhibiting effects |
| SE8204879D0 (sv) * | 1982-08-26 | 1982-08-26 | Haessle Ab | Novel chemical intermediates |
| SE8300736D0 (sv) * | 1983-02-11 | 1983-02-11 | Haessle Ab | Novel pharmacologically active compounds |
| IL71665A (en) * | 1983-05-03 | 1988-05-31 | Byk Gulden Lomberg Chem Fab | Fluoro-(2-pyridyl-methylthio)-dioxolo-(and dioxino-)benzimidazoles,processes for their preparation and pharmaceutical compositions containing the same |
| DE3415971A1 (de) * | 1983-05-03 | 1984-11-08 | Byk Gulden Lomberg Chemische Fabrik Gmbh, 7750 Konstanz | Acylierte benzimidazole, verfahren zu ihrer herstellung, ihre anwendung und sie enthaltende arzneimittel |
| IL71664A (en) * | 1983-05-03 | 1987-11-30 | Byk Gulden Lomberg Chem Fab | Fluoroalkoxy compounds,process for their preparation and pharmaceutical compositions containing the same |
| JPS6150978A (ja) * | 1984-08-16 | 1986-03-13 | Takeda Chem Ind Ltd | ピリジン誘導体およびその製造法 |
| CN85103357A (zh) * | 1985-05-13 | 1986-11-12 | 霍夫曼·拉罗奇有限公司 | 三环咪唑衍生物及其酸加成盐的制法 |
| SE8504409D0 (sv) * | 1985-09-24 | 1985-09-24 | Haessle Ab | Novel chemical intermediates |
| CA1276017C (en) * | 1986-02-13 | 1990-11-06 | Takeda Chemical Industries, Ltd. | Sulfenamide derivatives and their production |
| JPH0717631B2 (ja) * | 1986-03-04 | 1995-03-01 | 武田薬品工業株式会社 | ピリジニウム誘導体およびその製造法 |
| US4739057A (en) * | 1986-06-30 | 1988-04-19 | Stauffer Chemical Co. | Process for converting organo-hydroxyl compounds to halides |
| FI90544C (fi) * | 1986-11-13 | 1994-02-25 | Eisai Co Ltd | Menetelmä lääkeaineina käyttökelpoisten 2-pyridin-2-yyli-metyylitio- ja sulfinyyli-1H-bensimidatsolijohdannaisten valmistamiseksi |
| DE3837411A1 (de) * | 1987-11-13 | 1989-06-01 | Hoechst Ag | Substituierte thienoimidazol-derivate, verfahren zu ihrer herstellung, sie enthaltende pharmazeutische zubereitungen und ihre verwendung als magensaeuresekretionshemmer |
-
1988
- 1988-11-15 AT AT0278988A patent/AT391693B/de not_active IP Right Cessation
- 1988-11-30 DE DE3840372A patent/DE3840372A1/de not_active Withdrawn
-
1989
- 1989-10-23 ES ES89119640T patent/ES2053906T3/es not_active Expired - Lifetime
- 1989-10-23 EP EP89119640A patent/EP0369208B1/de not_active Expired - Lifetime
- 1989-10-23 AT AT89119640T patent/ATE86978T1/de active
- 1989-10-23 DE DE8989119640T patent/DE58903808D1/de not_active Expired - Fee Related
- 1989-10-30 IL IL92152A patent/IL92152A/xx not_active IP Right Cessation
- 1989-10-31 ZA ZA898273A patent/ZA898273B/xx unknown
- 1989-11-03 NZ NZ231252A patent/NZ231252A/en unknown
- 1989-11-06 NO NO89894410A patent/NO894410L/no unknown
- 1989-11-07 US US07/432,874 patent/US5066810A/en not_active Expired - Fee Related
- 1989-11-09 PH PH39501A patent/PH25813A/en unknown
- 1989-11-10 CA CA002002757A patent/CA2002757A1/en not_active Abandoned
- 1989-11-13 FI FI895389A patent/FI895389A7/fi not_active Application Discontinuation
- 1989-11-13 YU YU02163/89A patent/YU216389A/xx unknown
- 1989-11-13 KR KR1019890016381A patent/KR900007803A/ko not_active Withdrawn
- 1989-11-14 CN CN89108549A patent/CN1042705A/zh active Pending
- 1989-11-14 CS CS896438A patent/CS276357B6/cs unknown
- 1989-11-14 PT PT92307A patent/PT92307B/pt not_active IP Right Cessation
- 1989-11-14 DD DD89334567A patent/DD284877A5/de not_active IP Right Cessation
- 1989-11-14 SU SU894742390A patent/SU1745121A3/ru active
- 1989-11-14 AU AU44657/89A patent/AU628100B2/en not_active Ceased
- 1989-11-14 HU HU895899A patent/HU207995B/hu not_active IP Right Cessation
- 1989-11-14 JP JP1294101A patent/JPH02180868A/ja active Pending
- 1989-11-14 DK DK568989A patent/DK568989A/da not_active Application Discontinuation
-
1993
- 1993-03-18 GR GR920402814T patent/GR3007391T3/el unknown
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