JP5640283B2 - ピリミジン誘導体の調製プロセス - Google Patents
ピリミジン誘導体の調製プロセス Download PDFInfo
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- JP5640283B2 JP5640283B2 JP2012504016A JP2012504016A JP5640283B2 JP 5640283 B2 JP5640283 B2 JP 5640283B2 JP 2012504016 A JP2012504016 A JP 2012504016A JP 2012504016 A JP2012504016 A JP 2012504016A JP 5640283 B2 JP5640283 B2 JP 5640283B2
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- Prior art keywords
- amino
- formula
- acid addition
- mmol
- malononitrile
- 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.)
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- 238000000034 method Methods 0.000 title claims description 8
- 238000002360 preparation method Methods 0.000 title claims description 5
- 229940083082 pyrimidine derivative acting on arteriolar smooth muscle Drugs 0.000 title description 2
- 150000003230 pyrimidines Chemical class 0.000 title description 2
- 239000002253 acid Substances 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 11
- RIOQOLSODGFOQV-UHFFFAOYSA-N 2-(aminomethylidene)propanedinitrile Chemical compound NC=C(C#N)C#N RIOQOLSODGFOQV-UHFFFAOYSA-N 0.000 claims description 8
- FRBZBJHKHSVFNK-UHFFFAOYSA-N 3-amino-2-cyanoprop-2-enamide Chemical compound NC=C(C#N)C(N)=O FRBZBJHKHSVFNK-UHFFFAOYSA-N 0.000 claims description 7
- SJFKGZZCMREBQH-UHFFFAOYSA-N methyl ethanimidate Chemical compound COC(C)=N SJFKGZZCMREBQH-UHFFFAOYSA-N 0.000 claims description 7
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 claims description 7
- -1 5-substituted 4-amino-2-methylpyrimidines Chemical class 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- CUONGYYJJVDODC-UHFFFAOYSA-N malononitrile Chemical compound N#CCC#N CUONGYYJJVDODC-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- JZRWCGZRTZMZEH-UHFFFAOYSA-N thiamine Chemical compound CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N JZRWCGZRTZMZEH-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 4
- 238000007363 ring formation reaction Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- YBPNIILOUYAGIF-UHFFFAOYSA-N 4-amino-2-methylpyrimidine-5-carbonitrile Chemical compound CC1=NC=C(C#N)C(N)=N1 YBPNIILOUYAGIF-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- IIHQNAXFIODVDU-UHFFFAOYSA-N pyrimidine-2-carbonitrile Chemical compound N#CC1=NC=CC=N1 IIHQNAXFIODVDU-UHFFFAOYSA-N 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- SUBJHSREKVAVAR-UHFFFAOYSA-N sodium;methanol;methanolate Chemical compound [Na+].OC.[O-]C SUBJHSREKVAVAR-UHFFFAOYSA-N 0.000 description 3
- WHYJXXISOUGFLJ-UHFFFAOYSA-N 1-methoxyethylideneazanium;chloride Chemical compound [Cl-].COC(C)=[NH2+] WHYJXXISOUGFLJ-UHFFFAOYSA-N 0.000 description 2
- ZFOFMUZUUKJTTN-UHFFFAOYSA-N 4-amino-2-methylpyrimidine-5-carboxamide Chemical compound CC1=NC=C(C(N)=O)C(N)=N1 ZFOFMUZUUKJTTN-UHFFFAOYSA-N 0.000 description 2
- OZOHTVFCSKFMLL-UHFFFAOYSA-N 4-amino-5-aminomethyl-2-methylpyrimidine Chemical compound CC1=NC=C(CN)C(N)=N1 OZOHTVFCSKFMLL-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000002798 polar solvent Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229960003495 thiamine Drugs 0.000 description 2
- 235000019157 thiamine Nutrition 0.000 description 2
- 239000011721 thiamine Substances 0.000 description 2
- 239000003039 volatile agent Substances 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- HTSGKJQDMSTCGS-UHFFFAOYSA-N 1,4-bis(4-chlorophenyl)-2-(4-methylphenyl)sulfonylbutane-1,4-dione Chemical compound C1=CC(C)=CC=C1S(=O)(=O)C(C(=O)C=1C=CC(Cl)=CC=1)CC(=O)C1=CC=C(Cl)C=C1 HTSGKJQDMSTCGS-UHFFFAOYSA-N 0.000 description 1
- FYWDUQCSMYWUHV-UHFFFAOYSA-N 3-chloro-5-hydroxypentan-2-one Chemical compound CC(=O)C(Cl)CCO FYWDUQCSMYWUHV-UHFFFAOYSA-N 0.000 description 1
- QCQCHGYLTSGIGX-GHXANHINSA-N 4-[[(3ar,5ar,5br,7ar,9s,11ar,11br,13as)-5a,5b,8,8,11a-pentamethyl-3a-[(5-methylpyridine-3-carbonyl)amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3h-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid Chemical compound N([C@@]12CC[C@@]3(C)[C@]4(C)CC[C@H]5C(C)(C)[C@@H](OC(=O)CC(C)(C)C(O)=O)CC[C@]5(C)[C@H]4CC[C@@H]3C1=C(C(C2)=O)C(C)C)C(=O)C1=CN=CC(C)=C1 QCQCHGYLTSGIGX-GHXANHINSA-N 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- VRCJMZQBSGUUEY-UHFFFAOYSA-N C(C)(C)O.C(C)(=N)N Chemical compound C(C)(C)O.C(C)(=N)N VRCJMZQBSGUUEY-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- PNKUSGQVOMIXLU-UHFFFAOYSA-N Formamidine Chemical compound NC=N PNKUSGQVOMIXLU-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- ZFKNKHHMWOWEEN-UHFFFAOYSA-N O=C1N(C#N)C1=O Chemical compound O=C1N(C#N)C1=O ZFKNKHHMWOWEEN-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- AGSPXMVUFBBBMO-UHFFFAOYSA-N beta-aminopropionitrile Chemical compound NCCC#N AGSPXMVUFBBBMO-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000005839 oxidative dehydrogenation reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
- C07D239/32—One oxygen, sulfur or nitrogen atom
- C07D239/42—One nitrogen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/20—Preparation of carboxylic acid nitriles by dehydration of carboxylic acid amides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Plural Heterocyclic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
[式中、RはCONH2またはCNである]、
およびその酸付加塩の調製プロセスであって、H2N CH=C(R)−CNの化合物(II)とアセトイミド酸メチルエステル(H3C C(=NH) O CH3)またはその酸付加塩を反応させること、および望むなら、式Iの化合物を酸付加塩に転換させることを特徴とするプロセスに関する。
アセトアミド酸メチルエステル塩酸塩1.85g(95.0%、16.07ミリモル)および3−アミノ−2−シアノ−アクリルアミド(68.7%、12.36ミリモル)2.0gを、メタノール20mlに懸濁した。NaOMe2.89g(30%、16.07ミリモル)を添加し、懸濁液を、24時間撹拌下45℃に加熱した。変換は観察されなかった。次いで、反応混合物を3.5時間撹拌下、70℃に加熱した。NaOMeメタノール(30%)1.15mlを添加した後、撹拌下70℃に加熱することを3時間継続した。反応混合物を濾過し、濾過ケーキを30ミリバール/50℃で乾燥した。4−アミノ−2−メチル−5−ピリミジンカルボキサミドの収量は2.25g(純度30.1%)であった。母液を30ミリバール/50℃で濃縮すると、さらに1.0gの生成物(純度12.3%)が得られた。全収率:42.5%.
3−アミノ−2−シアノ−アクリルアミド0.6Og(82.2%、4.44ミリモル)とジメトキシエタン20mlの混合物に、トリエチルアミン0.56g(99.5%、5.52ミリモル)を室温で添加した。POCl30.56g(98.0%、3.55ミリモル)を滴下した。懸濁液は黄色になり、5時間後に、揮発性の/揮発性物質をすべて、30ミリバール/42℃で除去した。2−アミノメチレン−マロノニトリル780mgが得られた。収率:79.4%;純度42.6%。NaOH(28%)水溶液中の生成物をジクロロメタンで抽出することにより、より高い純度に到達することができる。
NaOMeメタノール溶液27.97g(13.72ミリモル、2.7%)を、アセトイミド酸メチルエステル塩酸塩1.58g(95.0%、13.72ミリモル)および2−アミノメチレン−マロノニトリル1.43g(68.7%、10.55ミリモル)に添加し、混合物を、アルゴン下、室温で5時間撹拌した。4−アミノ−2−メチル−5−ピリミジンカルボニトリルは、塩化ナトリウムを添加し、0℃に冷却したときでさえ沈澱せず、ワークアップは、揮発性物質をすべて、30ミリバール/48℃で除去することによって実現した。残留する固体を水に懸濁し、濾過した。濾過ケーキを乾燥し、NMRで分析した。ピリミジンカルボニトリルの収量:1.33g(60.0%、純度64.8%)。
3−アミノ−2−シアノアクリルアミド0.68g(82.2%、5.03ミリモル)とジメトキシエタン10mlの混合物に、トリエチルアミン0.63g(99.5%、6.26ミリモル)を添加した。次いで、POCl30.63g(98.0%、4.02ミリモル)を滴下し、その際に懸濁液は茶色がかった色になった。室温で2時間撹拌した後、まだ20%の出発材料が残存していた。さらにPOCl3(0.17ml)を滴下した。3時間後、揮発性物質をすべて、30ミリバール、40℃で除去した。残留する固体残渣をメタノール10mlに溶解し、アセトイミド酸メチルエステル塩酸塩0.75g(95.0%、6.54ミリモル)を添加した。次いで、NaOMeメタノール溶液13.33g(2.7%、6.54ミリモル)を添加し、混合物を45℃で18時間撹拌した。2−アミノメチレン−マロノニトリルのみ認められ、ピリミジンカルボニトリルは認められなかった。
イソプロパノール10ml中2−アミノメチレン−マロノニトリル0.41g(4.44ミリモル)の混合物に、アセトアミジンイソプロパノール溶液2.74g(9.9%、4.66ミリモル)をゆっくりと添加した。懸濁液を室温で4時間撹拌した後、ピリミジンカルボニトリルは反応混合物中に検出されなかった。
Claims (3)
- 2−アミノメチレン−マロノニトリルの調製プロセスであって、3−アミノ−2−シアノアクリルアミドをPOCl3で脱水する工程を含む、プロセス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09157590 | 2009-04-08 | ||
EP09157590.2 | 2009-04-08 | ||
PCT/EP2010/054629 WO2010115950A2 (en) | 2009-04-08 | 2010-04-08 | Process for the preparation of pyrimidine derivatives |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012523392A JP2012523392A (ja) | 2012-10-04 |
JP5640283B2 true JP5640283B2 (ja) | 2014-12-17 |
Family
ID=42260314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012504016A Active JP5640283B2 (ja) | 2009-04-08 | 2010-04-08 | ピリミジン誘導体の調製プロセス |
Country Status (6)
Country | Link |
---|---|
US (2) | US8461168B2 (ja) |
EP (1) | EP2417113B1 (ja) |
JP (1) | JP5640283B2 (ja) |
CN (1) | CN102438994B (ja) |
ES (1) | ES2548154T3 (ja) |
WO (1) | WO2010115950A2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103261173B (zh) * | 2010-12-10 | 2015-09-23 | 帝斯曼知识产权资产管理有限公司 | 2-甲基-4-氨基-5-氰基嘧啶(ⅰ)的制备方法 |
DK3490972T3 (da) * | 2016-07-28 | 2020-12-14 | Bayer Cropscience Ag | Fremgangsmåde til fremstilling af fluoralkylnitriler og de tilsvarende fluoralkyltetrazoler |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2235638A (en) | 1936-10-09 | 1941-03-18 | Merck & Co Inc | Process of preparing derivatives of pyrimidine |
US3226424A (en) * | 1962-10-03 | 1965-12-28 | Hoffmann La Roche | Process for preparing 2-lower alkoxy-1,1-dicyanoethylene and 2-amino-1,1-dicyanoethylene |
GB1200444A (en) | 1966-07-14 | 1970-07-29 | Burroughs Wellcome Co | The preparation of pyrazoles and pyrazolopyrimidines |
US3966791A (en) | 1974-06-19 | 1976-06-29 | Hoffmann-La Roche Inc. | Preparation of dialkyl amino acrylonitrile |
CH603575A5 (ja) | 1974-08-19 | 1978-08-31 | Hoffmann La Roche | |
DE60012918T2 (de) | 2000-08-31 | 2005-09-08 | Council Of Scientific And Industrial Research | Verfahren zur Herstellung von Malonsäuredinitril |
US6297393B1 (en) * | 2000-08-31 | 2001-10-02 | Council Of Scientific And Industrial Research | Process for the preparation of malononitrile |
CN101107221B (zh) | 2005-01-18 | 2012-02-08 | 日宝化学株式会社 | 偕亚氨醚化合物的制造方法 |
-
2010
- 2010-04-08 JP JP2012504016A patent/JP5640283B2/ja active Active
- 2010-04-08 WO PCT/EP2010/054629 patent/WO2010115950A2/en active Application Filing
- 2010-04-08 US US13/263,142 patent/US8461168B2/en active Active
- 2010-04-08 EP EP10719739.4A patent/EP2417113B1/en active Active
- 2010-04-08 CN CN201080015794.9A patent/CN102438994B/zh active Active
- 2010-04-08 ES ES10719739.4T patent/ES2548154T3/es active Active
-
2013
- 2013-05-13 US US13/893,114 patent/US8658793B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20120095230A1 (en) | 2012-04-19 |
JP2012523392A (ja) | 2012-10-04 |
US20130245263A1 (en) | 2013-09-19 |
CN102438994A (zh) | 2012-05-02 |
EP2417113B1 (en) | 2015-07-15 |
EP2417113A2 (en) | 2012-02-15 |
US8658793B2 (en) | 2014-02-25 |
CN102438994B (zh) | 2015-04-29 |
WO2010115950A3 (en) | 2011-10-13 |
ES2548154T3 (es) | 2015-10-14 |
WO2010115950A2 (en) | 2010-10-14 |
US8461168B2 (en) | 2013-06-11 |
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