DE2366349C2 - Verfahren zur Herstellung von 5-Methyl-1-phenyl-2-(1H)-pyridon - Google Patents
Verfahren zur Herstellung von 5-Methyl-1-phenyl-2-(1H)-pyridonInfo
- Publication number
- DE2366349C2 DE2366349C2 DE19732366349 DE2366349A DE2366349C2 DE 2366349 C2 DE2366349 C2 DE 2366349C2 DE 19732366349 DE19732366349 DE 19732366349 DE 2366349 A DE2366349 A DE 2366349A DE 2366349 C2 DE2366349 C2 DE 2366349C2
- Authority
- DE
- Germany
- Prior art keywords
- pyridone
- reaction
- phenyl
- methyl
- copper
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 11
- ISWRGOKTTBVCFA-UHFFFAOYSA-N pirfenidone Chemical compound C1=C(C)C=CC(=O)N1C1=CC=CC=C1 ISWRGOKTTBVCFA-UHFFFAOYSA-N 0.000 title claims description 8
- 238000002360 preparation method Methods 0.000 title claims description 5
- 238000006243 chemical reaction Methods 0.000 description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 18
- 239000010949 copper Substances 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000000126 substance Substances 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 11
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 10
- UBQKCCHYAOITMY-UHFFFAOYSA-N pyridin-2-ol Chemical class OC1=CC=CC=N1 UBQKCCHYAOITMY-UHFFFAOYSA-N 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- QARVLSVVCXYDNA-UHFFFAOYSA-N bromobenzene Chemical compound BrC1=CC=CC=C1 QARVLSVVCXYDNA-UHFFFAOYSA-N 0.000 description 6
- 150000003335 secondary amines Chemical class 0.000 description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 description 5
- -1 2-pyridone alkali metal salts Chemical class 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 238000006887 Ullmann reaction Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 4
- 150000008041 alkali metal carbonates Chemical class 0.000 description 4
- YCOXTKKNXUZSKD-UHFFFAOYSA-N as-o-xylenol Natural products CC1=CC=C(O)C=C1C YCOXTKKNXUZSKD-UHFFFAOYSA-N 0.000 description 4
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 4
- SNHMUERNLJLMHN-UHFFFAOYSA-N iodobenzene Chemical compound IC1=CC=CC=C1 SNHMUERNLJLMHN-UHFFFAOYSA-N 0.000 description 4
- 235000011181 potassium carbonates Nutrition 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 description 3
- TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 description 3
- 229910000102 alkali metal hydride Inorganic materials 0.000 description 3
- 150000008046 alkali metal hydrides Chemical class 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 150000003949 imides Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- LVWZTYCIRDMTEY-UHFFFAOYSA-N metamizole Chemical compound O=C1C(N(CS(O)(=O)=O)C)=C(C)N(C)N1C1=CC=CC=C1 LVWZTYCIRDMTEY-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229940124641 pain reliever Drugs 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 150000003512 tertiary amines Chemical class 0.000 description 3
- 229940116269 uric acid Drugs 0.000 description 3
- AGHYMXKKEXDUTA-UHFFFAOYSA-N 4-methyl-n-phenylaniline Chemical compound C1=CC(C)=CC=C1NC1=CC=CC=C1 AGHYMXKKEXDUTA-UHFFFAOYSA-N 0.000 description 2
- SOHMZGMHXUQHGE-UHFFFAOYSA-N 5-methyl-1h-pyridin-2-one Chemical compound CC1=CC=C(O)N=C1 SOHMZGMHXUQHGE-UHFFFAOYSA-N 0.000 description 2
- RMMXTBMQSGEXHJ-UHFFFAOYSA-N Aminophenazone Chemical compound O=C1C(N(C)C)=C(C)N(C)N1C1=CC=CC=C1 RMMXTBMQSGEXHJ-UHFFFAOYSA-N 0.000 description 2
- KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- RWZYAGGXGHYGMB-UHFFFAOYSA-N anthranilic acid Chemical compound NC1=CC=CC=C1C(O)=O RWZYAGGXGHYGMB-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YWWZASFPWWPUBN-UHFFFAOYSA-N 1-bromoisoquinoline Chemical compound C1=CC=C2C(Br)=NC=CC2=C1 YWWZASFPWWPUBN-UHFFFAOYSA-N 0.000 description 1
- ZEGFMCQPAMLDCS-UHFFFAOYSA-N 2-(n-phenylanilino)benzoic acid Chemical compound OC(=O)C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ZEGFMCQPAMLDCS-UHFFFAOYSA-N 0.000 description 1
- XCTQPMCULSZKLT-UHFFFAOYSA-N 2-cyano-n-phenylacetamide Chemical compound N#CCC(=O)NC1=CC=CC=C1 XCTQPMCULSZKLT-UHFFFAOYSA-N 0.000 description 1
- BPEXTIMJLDWDTL-UHFFFAOYSA-N 2`-Methylacetanilide Chemical compound CC(=O)NC1=CC=CC=C1C BPEXTIMJLDWDTL-UHFFFAOYSA-N 0.000 description 1
- YICAMJWHIUMFDI-UHFFFAOYSA-N 4-acetamidotoluene Chemical compound CC(=O)NC1=CC=C(C)C=C1 YICAMJWHIUMFDI-UHFFFAOYSA-N 0.000 description 1
- GWLKKUCNXDMEGF-UHFFFAOYSA-N 5-methyl-3-(3-nitrophenyl)-1h-pyridin-2-one Chemical compound CC1=CNC(=O)C(C=2C=C(C=CC=2)[N+]([O-])=O)=C1 GWLKKUCNXDMEGF-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical group NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 description 1
- SKZKKFZAGNVIMN-UHFFFAOYSA-N Salicilamide Chemical compound NC(=O)C1=CC=CC=C1O SKZKKFZAGNVIMN-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229960000212 aminophenazone Drugs 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 229940035676 analgesics Drugs 0.000 description 1
- 229940051881 anilide analgesics and antipyretics Drugs 0.000 description 1
- 150000003931 anilides Chemical class 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- 239000000730 antalgic agent Substances 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 239000002221 antipyretic Substances 0.000 description 1
- 229940125716 antipyretic agent Drugs 0.000 description 1
- ZVSKZLHKADLHSD-UHFFFAOYSA-N benzanilide Chemical compound C=1C=CC=CC=1C(=O)NC1=CC=CC=C1 ZVSKZLHKADLHSD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 1
- 229910000024 caesium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- ZWJINEZUASEZBH-UHFFFAOYSA-N fenamic acid Chemical compound OC(=O)C1=CC=CC=C1NC1=CC=CC=C1 ZWJINEZUASEZBH-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 150000004806 hydroxypyridines Chemical class 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000003385 ring cleavage reaction Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 229960000581 salicylamide Drugs 0.000 description 1
- WKEDVNSFRWHDNR-UHFFFAOYSA-N salicylanilide Chemical compound OC1=CC=CC=C1C(=O)NC1=CC=CC=C1 WKEDVNSFRWHDNR-UHFFFAOYSA-N 0.000 description 1
- 229950000975 salicylanilide Drugs 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 150000003385 sodium Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- 150000007968 uric acids Chemical class 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- C07D213/60—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
- C07D213/64—One oxygen atom attached in position 2 or 6
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00315836A US3839346A (en) | 1972-12-18 | 1972-12-18 | N-substituted pyridone and general method for preparing pyridones |
| US38065573A | 1973-07-19 | 1973-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2366349C2 true DE2366349C2 (de) | 1986-03-27 |
Family
ID=26980095
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732366349 Expired DE2366349C2 (de) | 1972-12-18 | 1973-12-18 | Verfahren zur Herstellung von 5-Methyl-1-phenyl-2-(1H)-pyridon |
| DE19732362958 Expired DE2362958C2 (de) | 1972-12-18 | 1973-12-18 | Pharmazeutische Zusammensetzung zur Linderung von Entzündungen, Fieber oder Schmerzen bei Säugetieren oder zur Senkung des Harnsäurespiegels im Blutserum |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732362958 Expired DE2362958C2 (de) | 1972-12-18 | 1973-12-18 | Pharmazeutische Zusammensetzung zur Linderung von Entzündungen, Fieber oder Schmerzen bei Säugetieren oder zur Senkung des Harnsäurespiegels im Blutserum |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4987677A (cg-RX-API-DMAC7.html) |
| DE (2) | DE2366349C2 (cg-RX-API-DMAC7.html) |
| ES (1) | ES421598A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2232316B1 (cg-RX-API-DMAC7.html) |
| GB (2) | GB1458048A (cg-RX-API-DMAC7.html) |
| NL (1) | NL7317316A (cg-RX-API-DMAC7.html) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1049411A (en) * | 1972-12-18 | 1979-02-27 | Affiliated Medical Research | N-substituted pyridone and general method for preparing pyridones |
| JPS5350179A (en) * | 1976-10-15 | 1978-05-08 | Rikagaku Kenkyusho | Novel 2-pyridone compounds and their preparation |
| JP4542743B2 (ja) * | 2002-12-26 | 2010-09-15 | Ｋｄｌ株式会社 | ピリドン誘導体の溶液状医薬組成物 |
| AU2006244072B2 (en) | 2005-05-10 | 2012-09-20 | Intermune, Inc. | Pyridone derivatives for modulating stress-activated protein kinase system |
| MX2007009796A (es) | 2007-08-14 | 2009-02-25 | Cell Therapy And Technology S | Gel conteniendo pirfenidona. |
| EP2296653B1 (en) | 2008-06-03 | 2016-01-27 | Intermune, Inc. | Compounds and methods for treating inflammatory and fibrotic disorders |
| HUE058753T2 (hu) * | 2011-01-31 | 2022-09-28 | Avalyn Pharma Inc | Aeroszol formájú pirfenidon- és piridon-analóg vegyületek és alkalmazásaik |
| MX2011007675A (es) | 2011-07-19 | 2012-07-11 | Cell Therapy And Technology S A De C V | Procedimiento para la fabricacion de una composicion farmaceutica en forma de tabletas de liberacion prolongada conteniendo pirfenidona y su aplicacion en la regresion de la insuficiencia renal cronica, contractura capsular mamaria y fibrosis hepatica humanas. |
| MX346763B (es) | 2012-03-28 | 2017-03-31 | Cell Therapy And Tech S A De C V | Composición tópica semisólida conteniendo pirfenidona y dialil óxido de disulfuro modificado (odd-m) para eliminar o prevenir el acné. |
| AR092742A1 (es) | 2012-10-02 | 2015-04-29 | Intermune Inc | Piridinonas antifibroticas |
| CN110452216B (zh) | 2014-04-02 | 2022-08-26 | 英特穆恩公司 | 抗纤维化吡啶酮类 |
| ITUB20154832A1 (it) * | 2015-10-29 | 2017-04-29 | Procos Spa | Processo per la sintesi di pirfenidone |
| WO2019028062A1 (en) * | 2017-07-31 | 2019-02-07 | Washington University | PIRFENIDONE DERIVATIVES FOR MODULATION OF B-LYMPHOCYTE ACTIVITY AND PROTECTION OF ORGANS |
| MX366086B (es) | 2017-08-15 | 2019-06-27 | Cell Therapy And Tech S A De C V | Composicion topica semisolida conteniendo un agente antimicrobiano y pirfenidona para el tratamiento de daños cronicos de la piel. |
| WO2022051984A1 (zh) | 2020-09-10 | 2022-03-17 | 苏州富德兆丰生化科技有限公司 | 吡非尼酮的合成方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2947755A (en) * | 1959-02-05 | 1960-08-02 | Wallace & Tiernan Inc | Substituted 1-m-aminophenyl-2-pyridones |
| US3655897A (en) * | 1971-01-25 | 1972-04-11 | Merck & Co Inc | Anti-inflammatory agents |
-
1973
- 1973-12-18 FR FR7345342A patent/FR2232316B1/fr not_active Expired
- 1973-12-18 GB GB5864273A patent/GB1458048A/en not_active Expired
- 1973-12-18 DE DE19732366349 patent/DE2366349C2/de not_active Expired
- 1973-12-18 GB GB4107475A patent/GB1458049A/en not_active Expired
- 1973-12-18 NL NL7317316A patent/NL7317316A/xx not_active Application Discontinuation
- 1973-12-18 ES ES421598A patent/ES421598A1/es not_active Expired
- 1973-12-18 DE DE19732362958 patent/DE2362958C2/de not_active Expired
- 1973-12-18 JP JP14179773A patent/JPS4987677A/ja active Pending
Non-Patent Citations (5)
| Title |
|---|
| Beyer, H.: Lehrbuch der organischen Chemie, Leipzig 1961, S. 456 * |
| Chem.Ber., 39, 1691, 1906 * |
| Chemical Abstracts, 65, 16936, 1966 * |
| J.Amer.Chem.Soc., 50, 859, 1928 * |
| Organic Syntheses Coll., Vol. I, 529, 1932 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2362958A1 (de) | 1974-06-27 |
| JPS4987677A (cg-RX-API-DMAC7.html) | 1974-08-22 |
| ES421598A1 (es) | 1977-01-01 |
| AU6374673A (en) | 1975-06-19 |
| FR2232316A1 (cg-RX-API-DMAC7.html) | 1975-01-03 |
| NL7317316A (cg-RX-API-DMAC7.html) | 1974-06-20 |
| DE2362958C2 (de) | 1984-06-14 |
| FR2232316B1 (cg-RX-API-DMAC7.html) | 1978-03-24 |
| GB1458048A (en) | 1976-12-08 |
| GB1458049A (en) | 1976-12-08 |
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