DK169517B1 - [Aryl](3-pyridinyl)methanon,oximderivater samt fremgangsmåde til fremstilling deraf - Google Patents
[Aryl](3-pyridinyl)methanon,oximderivater samt fremgangsmåde til fremstilling deraf Download PDFInfo
- Publication number
- DK169517B1 DK169517B1 DK115491A DK115491A DK169517B1 DK 169517 B1 DK169517 B1 DK 169517B1 DK 115491 A DK115491 A DK 115491A DK 115491 A DK115491 A DK 115491A DK 169517 B1 DK169517 B1 DK 169517B1
- Authority
- DK
- Denmark
- Prior art keywords
- pyridinyl
- methanone
- oxime
- parts
- phenyl
- Prior art date
Links
- 150000002923 oximes Chemical class 0.000 title claims description 22
- QJZUKDFHGGYHMC-UHFFFAOYSA-N pyridine-3-carbaldehyde Chemical class O=CC1=CC=CN=C1 QJZUKDFHGGYHMC-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title abstract description 6
- 238000002360 preparation method Methods 0.000 title description 9
- 125000003118 aryl group Chemical group 0.000 title description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 35
- 239000002253 acid Substances 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 10
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 9
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims abstract description 7
- -1 oxime compound Chemical class 0.000 claims description 12
- 150000001204 N-oxides Chemical class 0.000 claims description 10
- 229910052783 alkali metal Inorganic materials 0.000 claims description 7
- 150000001340 alkali metals Chemical class 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910052784 alkaline earth metal Chemical class 0.000 claims description 3
- 239000012442 inert solvent Substances 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims 1
- PMOWTIHVNWZYFI-WAYWQWQTSA-N cis-2-coumaric acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1O PMOWTIHVNWZYFI-WAYWQWQTSA-N 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 5
- 239000001257 hydrogen Substances 0.000 abstract description 5
- 239000008194 pharmaceutical composition Substances 0.000 abstract description 5
- RZWIIPASKMUIAC-VQTJNVASSA-N thromboxane Chemical compound CCCCCCCC[C@H]1OCCC[C@@H]1CCCCCCC RZWIIPASKMUIAC-VQTJNVASSA-N 0.000 abstract description 5
- KPCZJLGGXRGYIE-UHFFFAOYSA-N [C]1=CC=CN=C1 Chemical group [C]1=CC=CN=C1 KPCZJLGGXRGYIE-UHFFFAOYSA-N 0.000 abstract description 4
- 125000001624 naphthyl group Chemical group 0.000 abstract description 4
- 239000004480 active ingredient Substances 0.000 abstract description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract description 3
- 125000004076 pyridyl group Chemical group 0.000 abstract description 3
- 125000001544 thienyl group Chemical group 0.000 abstract description 2
- 150000002148 esters Chemical class 0.000 abstract 1
- 125000002541 furyl group Chemical group 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 abstract 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 abstract 1
- 125000000714 pyrimidinyl group Chemical group 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 17
- 239000000543 intermediate Substances 0.000 description 14
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- 239000000047 product Substances 0.000 description 9
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- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
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- YZXBAPSDXZZRGB-DOFZRALJSA-N arachidonic acid Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O YZXBAPSDXZZRGB-DOFZRALJSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 150000003863 ammonium salts Chemical class 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 239000002552 dosage form Substances 0.000 description 5
- KAQKFAOMNZTLHT-VVUHWYTRSA-N epoprostenol Chemical compound O1C(=CCCCC(O)=O)C[C@@H]2[C@@H](/C=C/[C@@H](O)CCCCC)[C@H](O)C[C@@H]21 KAQKFAOMNZTLHT-VVUHWYTRSA-N 0.000 description 5
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- 229910052736 halogen Inorganic materials 0.000 description 5
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- 230000002401 inhibitory effect Effects 0.000 description 5
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 125000001424 substituent group Chemical group 0.000 description 5
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- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 4
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- 230000000694 effects Effects 0.000 description 4
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 230000000144 pharmacologic effect Effects 0.000 description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
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- 238000010934 O-alkylation reaction Methods 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
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- 125000000008 (C1-C10) alkyl group Chemical group 0.000 description 2
- CSDSSGBPEUDDEE-UHFFFAOYSA-N 2-formylpyridine Chemical compound O=CC1=CC=CC=N1 CSDSSGBPEUDDEE-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
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- 241000124008 Mammalia Species 0.000 description 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
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- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
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- GLPFCEZELUBGAW-UHFFFAOYSA-N [3,5-bis(trifluoromethyl)phenyl]-pyridin-3-ylmethanone Chemical compound FC(F)(F)C1=CC(C(F)(F)F)=CC(C(=O)C=2C=NC=CC=2)=C1 GLPFCEZELUBGAW-UHFFFAOYSA-N 0.000 description 2
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- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
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- 230000004060 metabolic process Effects 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 206010027599 migraine Diseases 0.000 description 1
- 208000031225 myocardial ischemia Diseases 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000006186 oral dosage form Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 239000003961 penetration enhancing agent Substances 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 208000011906 peptic ulcer disease Diseases 0.000 description 1
- SHUZOJHMOBOZST-UHFFFAOYSA-N phylloquinone Natural products CC(C)CCCCC(C)CCC(C)CCCC(=CCC1=C(C)C(=O)c2ccccc2C1=O)C SHUZOJHMOBOZST-UHFFFAOYSA-N 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- BHMBVRSPMRCCGG-OUTUXVNYSA-N prostaglandin D2 Chemical compound CCCCC[C@H](O)\C=C\[C@@H]1[C@@H](C\C=C/CCCC(O)=O)[C@@H](O)CC1=O BHMBVRSPMRCCGG-OUTUXVNYSA-N 0.000 description 1
- XEYBRNLFEZDVAW-UHFFFAOYSA-N prostaglandin E2 Natural products CCCCCC(O)C=CC1C(O)CC(=O)C1CC=CCCCC(O)=O XEYBRNLFEZDVAW-UHFFFAOYSA-N 0.000 description 1
- BHMBVRSPMRCCGG-UHFFFAOYSA-N prostaglandine D2 Natural products CCCCCC(O)C=CC1C(CC=CCCCC(O)=O)C(O)CC1=O BHMBVRSPMRCCGG-UHFFFAOYSA-N 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- UTNLFMDYSBRTDI-UHFFFAOYSA-N pyridin-3-yl-[2-(trifluoromethyl)phenyl]methanone Chemical compound FC(F)(F)C1=CC=CC=C1C(=O)C1=CC=CN=C1 UTNLFMDYSBRTDI-UHFFFAOYSA-N 0.000 description 1
- FJGQCZNRGLLONR-UHFFFAOYSA-N pyridin-3-yl-[3-(trifluoromethyl)phenyl]methanone Chemical compound FC(F)(F)C1=CC=CC(C(=O)C=2C=NC=CC=2)=C1 FJGQCZNRGLLONR-UHFFFAOYSA-N 0.000 description 1
- 238000003127 radioimmunoassay Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004544 spot-on Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 238000007910 systemic administration Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 201000010875 transient cerebral ischemia Diseases 0.000 description 1
- 125000004360 trifluorophenyl group Chemical group 0.000 description 1
- 230000025033 vasoconstriction Effects 0.000 description 1
- 235000019168 vitamin K Nutrition 0.000 description 1
- 239000011712 vitamin K Substances 0.000 description 1
- 150000003721 vitamin K derivatives Chemical class 0.000 description 1
- 229940046010 vitamin k Drugs 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
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- 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
- C07D213/44—Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom
- C07D213/53—Nitrogen atoms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- 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
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- A—HUMAN NECESSITIES
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- A61P9/00—Drugs for disorders of the cardiovascular system
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- 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
- C07D213/89—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 with hetero atoms directly attached to the ring nitrogen atom
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- 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
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Description
i DK 169517 Bl
Den foreliggende opfindelse angår hidtil ukendte [aryl](3-pyridi-nyl)methanon,oximderivater med den nedenfor anførte almene formel (II), hvilke oximderivater er nyttige udgangsmaterialer ved fremstillingen af de i dansk patent nr. 164.159 omhandlede [[((3-pyridinyl)methylen]-5 amino]oxy]alkansyrederivater.
Et antal [[(3-pyridinyl)methylen]amino]oxyderivater er blevet beskrevet i J. Chem. Soc., Perkin Trans. I, (3), 984-7 (1981) og i J. Hed. Chem. 7 (6), 824-6 (1984) som mellemprodukter eller som forbindelser med piantevækstinhi berende- og vitamin K-aktivitet.
10 I schweizisk patentskrift nr. 616.406 er beskrevet et antal [[(3- pyridinyl)methylen]amino]oxyderivater, der kan anvendes som lipid-sæn-kende og plantebeskyttende midler.
I US-patentskrift nr. 4.518.602 er beskrevet et antal vinyl-carboxyl syrederivater med thromboxan A2 syntetase inhiberende egenskaber.
15 I offentliggjort europæisk patentansøgning nr. 0.175.304 er be skrevet [[(methyl en) ami no]oxy]propansyrer.
Forbindelserne ifølge dansk patent nr. 164.159 adskiller sig fra de anførte kendte forbindelser ved deres evne til specifikt at inhibere den enzymatiske syntese af thromboxan A2 og ved de til [(methyl en)-20 amino]oxygruppen bundne substituenters natur.
Dansk patent nr. 164.159 angår således hidtil ukendte [[[(3-pyridinyl)methylen]amino]oxy]alkansyrederivater med den almene formel 25 C=N-0-Alk-C-0-R1 (I) R' hvori R' er hydrogen, C110alkyl, trifluormethyl, Ar eller Ar(Cj_10alkyl), hvori Ar er phenyl, naphthalenyl, pyridinyl eller thienyl, idet phenyl 30 eventuelt er substitueret med indtil 3 substituenter valgt blandt Chalky!, Cj_6alkyloxy, mono- og di(Cj_galkyloxy)methyl, amino, C16alkyl-carbonylamino, formyl, halogen, nitro og trifluormethyl, R1 er hydrogen eller Chalky!, og Alk er en C2|0alkandiylgruppe, 35 idet dog [[(3-pyridinylJmethylen]amino]oxy- og -C00R*-gruppen ikke er bundet til samme carbonatom, samt N-oxider og farmaceutisk acceptable syreadditionssalte, alkali- DK 169517 B1 2 metal- eller ammoniumsalte og stereokemisk isomere former deraf.
[Aryl](3-pyridinyl)methanon,oximderivatet ifølge opfindelsen er en forbindelse med den almene formel (II) (QX^n-oh <ro
R
hvori 10 R betegner phenyl substitueret med indtil to substituenter valgt blandt Cj galkyl, Cj galkyloxy, di(Cj_galkyloxy)methyl, halogen og trifluor-phenyl, idet R dog ikke er 2,5-dimethylphenyl, eller R betyder naphthalenyl, eller et N-oxid, et alkalimetal- eller jordal kalimetal salt eller en stereokemisk isomer form deraf.
15 I de foregående definitioner er udtrykket "halogen" fælles for fluor, chlor, brom og iod, "Cjgalkyl" indbefatter ligekædede og forgrenede mættede carbonhydridgrupper med fra 1 til 6 carbonatomer, såsom fx. methyl, ethyl, 1-methylethyl, 1,1,-dimethylethyl, propyl, butyl, pentyl, hexyl o.l., "Cjjgalkyl" indbefatter ligekædede og forgrenede 20 mættede carbonhydridgrupper med fra 1 til 10 carbonatomer, og "C2-10_ alkandiyl" indbefatter bival ente ligekædede eller forgrenede alkandiyl-grupper med fra 2 til 10 carbonatomer.
De nævnte N-oxider af forbindelserne med formel (I) omfatter sådanne forbindelser med formel (I), hvori et eller flere pyridinnitro-25 genatomer, er oxideret til den såkaldte N-oxidform.
Foretrukne forbindelser med formel (I) er sådanne, hvori [[(3-pyridinyl)methylen]amino]oxy- og -C00R*-gruppen er adskilt med mindst 3 og højst 6 carbonatomer.
Specielt foretrukne forbindelser med formel (I) er sådanne fore-30 trukne forbindelse, hvori R' er Ar eller Ar(Cj_^alkyl).
Mere specielt foretrukne forbindelser med formel (I) er sådanne specielt foretrukne forbindelser, hvori R1 er hydrogen, og R' er phenyl eller naphthalenyl, hvori phenyl eventuelt er substitueret med indtil 2 substituenter, der hver for sig uafhængigt kan være Cjgalkyl, Cj_g-35 alkyloxy, di(Cj galkyloxy)methyl, formyl, halogen eller trifluormethyl.
Særligt foretrukne forbindelser med formel (I) er sådanne mere specielt foretrukne forbindelser, hvori pyridinringen og -0-Alk-C00R*- DK 169517 B1 3 substituenterne på oximdelen har trans-konfiguration.
De mest foretrukne forbindelser med formel (I) er udvalgt fra gruppen bestående af (E)-5-[[[(3-pyridinyl)-[3-(trifluormethyl)phenylJ-methylenjamino]oxy]pentansyre og (E)-5-[[[(3-methylphenyl)-(3-pyridi-5 nyl)methylen]amino]oxy]pentansyre, de farmaceutisk acceptable salte og N-oxider deraf.
Forbindelserne med formel (I) kan fremstilles ved omsætning af oximderivatet ifølge opfindelsen med formel (II) eller et N-oxid deraf med et mellemprodukt med formel (III) iht. kendte O-alkyleringsproce-10 durer.
O-alkylering
JJ-C=N-OH (II) + V-Alk-COOR1 (III) ___^ (D
R
15 I (III) betegner W en passende reaktiv fraspaltelig gruppe, såsom fx. halogen, fx. chlor, brom eller iod, eller en sulfonyloxygruppe, fx. methyl sulfonyloxy eller 4-methyl phenyl sulfonyloxy.
O-alkyleringsreaktionerne udføres konventionelt i et egnet reaktionsinert opløsningsmiddel eller en blanding af sådanne opløsnings-20 midler. Et egnet reaktionsinert opløsningsmiddel kan fx. være et aromatisk carbonhydrid, fx. benzen, methyl benzen, dimethyl benzen, o.l., en lavere alkanol, fx. methanol, ethanol, 1-butanol, o.l., en keton, fx. 2-propanon, 4-methyl-2-pentanon, o.l., en ether, fx. 1,4-dioxan, Ι,Γ-oxy-bisethan, tetrahydrofuran, o.l., et polært aprot opløsningsmiddel, fx.
25 N,N-dimethyl formamid (DMF), N,N-dimethylacetamid (DMA), hexamethyl-phosphortriamid (HMPT), dimethyl sul foxid (DMSO), nitrobenzen, 1-methyl-2-pyrrol idinon, o.l. Tilsætning af en passende base, som fx. et al kali-metalcarbonat eller hydrogencarbonat, natriumhydrid, eller en organisk base, som fx. Ν,Ν-diethylethanamin eller N-(1-methylethyl)-2-propanamin, 30 kan anvendes til opsamling af den syre, der frigøres under reaktionsforløbet. Let forhøjede temperaturer kan forøge reaktionshastigheden.
Det kan være fordelagtigt først at omdanne oximderivatet ifølge opfindelsen med formel (II) til en metalsaltform deraf, fortrinsvis alkalimetalsal tformen, ved omsætning af udgangsoximet med fx. et al kali-35 metalhydrid eller et jordalkalimetalhydrid, fx. natriumhydrid, calcium-hydrid o.l., eller et al kalimetal hydroxid, fx. natriumhydroxid, kaliumhydroxid o.l., og derefter at anvende denne metalsaltform ved omsætnin- DK 169517 B1 4 gen med (III).
Opfindelsen angår også en fremgangsmåde til fremstilling af [aryl](3-pyridinyl)methanon,oximderivaterne ifølge opfindelsen, hvilken fremgangsmåde er ejendommelig ved det i krav 10's kendetegnende del 5 angivne.
Forbindelserne med formel (I), N-oxider, syreadditionssalte, al kalimetal- og ammoniumsalte samt stereokemisk isomere former deraf besidder nyttige farmakologiske egenskaber. Disse nyttige farmakologiske egenskaber kan fx. demonstreres i den i det følgende beskrevne 10 "blodplademalondialdehyd (MDA) produktions"-test, som belyser de throm-boxansyntetase-inhiberende egenskaber af forbindelserne med formel (I).
Ud over det ovenfor anførte kan den selektive inhibitoriske virkning på bio-syntesen af thromboxan A2 og den forøgede virkning på produktionen af prostacyclin og prostaglandin D2, E2 og F2a fx. demonstre-15 res ved blodpladeaggregeringsforsøg under anvendelse af forskellige induktorer, såsom fx. kollagen, arachidonsyre o.l., eller ved forsøg, der måler mellemprodukterne i arachidonsyremetabolismen under anvendelse af mærket arachidonsyre eller radio-immunoprøver.
P.g.a. deres nyttige farmakologiske egenskaber kan forbindelserne 20 med formel (I) formuleres til forskellige farmakologiske former til administreringsformål. Til fremstilling af de farmaceutiske præparater kombineres en effektiv mængde af den pågældende forbindelse på base-eller syreadditionssaltform som aktiv ingrediens i intim blanding med en farmaceutisk acceptabel bærer, hvilken bærer kan antage mange forskeili-25 ge former i afhængighed af den til administrering ønskede præparatform.
Det er ønskværdigt, at disse farmaceutiske præparater er på enhedsdosisform, fortrinsvis til oral, rektal og percutan administrering eller administrering ved parenteral injektion. Eksempelvis kan der ved fremstilling af præparaterne på oral dosisform anvendes et hvilket som helst 30 af de sædvanlige farmaceutiske medier såsom fx. vand, glycoler, olier, alkoholer o.l. i tilfælde af orale flydende præparater såsom suspensioner, siruper, eliksirer og opløsninger, eller faste bærere såsom stivelsesarter, sukkerarter, kaolin, smøremidler, bindemidler, desintegreringsmidler o.l. i tilfælde af pulvere, piller, kapsler og tabletter.
35 P.g.a. administreringens nemhed repræsenterer tabletter og kapsler den mest fordelagtige orale enhedsdosisform, i hvilket tilfælde der selvfølgelig anvendes faste farmaceutiske bærere. ‘1 parenterale præparater DK 169517 Bl 5 vil bæreren sædvanligvis omfatte sterilt vand, i det mindste i stor udstrækning, selvom andre ingredienser, fx. for at lette opløseligheden, også kan indgå. Eksempelvis kan der fremstilles injicerbare opløsninger, hvor bæreren omfatter en saltvandsopløsning, glukoseopløsning eller en 5 blanding af saltvands- og glukoseopløsning. Der kan også fremstilles injicerbare suspensioner, i hvilket tilfælde der kan anvendes passende flydende bærere, suspensionsmidler o.l. I præparater, som er egnede til perkutan indgivelse, omfatter bæreren eventuelt et penetrationsforøgende middel og/eller et egnet befugtningsmiddel, eventuelt i kombination med 10 egnede additiver af en hvilken som helst art i mindre mængder, hvilke additiver ikke forårsager nogen signifikant skadelig virkning på huden. Nævnte additiver kan lette administreringen til huden og/eller kan være behjælpelige ved fremstillingen af de ønskede præparater. Disse præparater kan administreres på forskellige måder, fx. som transdermalt plas-15 ter, som spot-on eller som salve. Salte af (I) er p.g.a. deres forøgede vandopløselighed i forhold til den tilsvarende baseform bedre egnet til fremstilling af vandige præparater.
Det er specielt fordelagtigt at formulere de førnævnte farmaceutiske præparater i enhedsdosisform for at lette administrering og gøre 20 doseringen mere ensartet. Den i det foreliggende beskrevne enhedsdosisform består af fysisk adskilte enheder, der er egnede som enkeltdoser, idet hver enhed i forbindelse med den nødvendige farmaceutiske bærer indeholder en forudbestemt mængde aktiv ingrediens, som er beregnet til at frembringe den ønskede terapeutiske virkning. Eksempler på sådanne 25 enhedsdosisformer er tabletter (inklusive tabletter med kærv og over-trukne tabletter), kapsler, piller, pulverpakker, oblater, injicerbare opløsninger eller suspensioner, teskefulde, spiseskefulde o.l. og adskilte multipler deraf.
Forbindelserne med formel (I), N-oxider, farmaceutisk acceptable 30 syreadditionssalte, alkalimetal- og ammoniumsalte og stereokemisk isomere former deraf udviser en selektiv inhibitorisk virkning på bio-syntesen af thromboxan Ag °9 °9S^ en forøget virkning på produktionen af prostacyclin og prostaglandin Dg, Eg og Fga, idet de både påvirker blodpladerne og på karvæggen.
35 P.g.a. deres evne til selektivt at inhibere bio-syntesen af throm boxan Ag og deres forøgende virkning på produktionen af prostacyclin og prostaglandin Dg, Eg og Fgft kan forbindelserne med formel (I) anvendes DK 169517 B1 6 til inhibering af vasokonstriktion og blodpladeaggregering, idet det er kendt, at disse virkninger påvirkes af thromboxan Ag, prostacyclin og/eller prostaglandin Dg, Eg og Fga (Science, 193, 1135-1137 (1976), Pharmacolog. Rev., 30, 293-331 (1979)).
5 Forbindelserne med formel (I), N-oxider, farmaceutisk acceptable syreadditions-, alkalimetal- og ammoniumsalte og mulige stereokemiske isomere former deraf kan anvendes ved en fremgangsmåde til behandling af pattedyr for sygdomme, som har forbindelse med produktionen af thromboxan Ag, prostacyclin og/eller prostaglandin Dg, Eg og w Disse syg-10 domme kan fx. være thrombosis i forskellige vaskulære områder eller iskæmiske sygdomme, fx. iskæmisk hjertelidelse, angina pectoris, slagtilfælde, kortvarige iskæmiske anfald, migræne, iskæmiske sygdomme i nyrer, lunge og andre organer, peptisk ulcus, vaskulære komplikationer i forbindelse med diabetes, samt cancer og dens spredning via blodstrøm-15 men. Denne fremgangsmåde omfatter systemisk indgivelse af en effektiv mængde af forbindelsen med formel (I), et N-oxid, et farmaceutisk acceptabelt syreadditions-, alkalimetal- eller ammoniumsalt eller en mulig stereokemisk isomer form deraf, til et pattedyr.
Fagfolk, som behandler de nævnte sygdomme, vil let kunne bestemme 20 den effektive mængde ud fra de i det følgende anførte test-resultater. Generelt antages det, at en effektiv mængde er fra 0,005 mg/kg til 20 mg/kg legemsvægt, og mere foretrukket fra 0,01 mg/kg til 10 mg/kg 1 egernsvægt.
Opfindelsen belyses i det følgende nærmere ved hjælp af eksempler.
25 Medmindre andet er angivet, er alle dele vægtdele.
A. Fremstilling af udgangsmaterialer
Eksempel 1 30 Til en omrørt og afkølet (-78°C) blanding af 50 dele l-brom-2- (dimethoxymethyl)benzen og 245 dele Ι,Γ-oxybisethan sattes dråbevis 59 dele af en 2,5 Μ 1-butyllithiumopløsning i hexan. Efter endt tilsætning fortsattes omrøring i 10 minutter ved stuetemperatur. En opløsning af 23,1 dele 3-pyridincarboxaldehyd i 42 dele Ι,Γ-oxybisethan sattes drå-35 bevis til reaktionsblandingen. Efter endt tilsætning fik blandingen lov til at antage stuetemperatur. Blandingen optoges i isvand og produktet ekstraheredes med Ι,Γ-oxybisethan. Ekstrakten tørredes, filtreredes og DK 169517 B1 7 inddampedes, hvilket gav 56 dele (99,9%) a-[2-(dimethoxy-methyl)phenyl]- 3-pyridinmethanol som en remanens (mellemprodukt 1).
På lignende måde fremstilledes også: a-[3-(dimethoxymethyl)phenyl]-3-pyridinmethanol som en remanens 5 (mellemprodukt 2).
Eksempel 2
Til en omrørt og afkølet (-70 til -80°C) opløsning af 71,4 dele af en 1,6 M 1-butyllithiumopløsning i hexan i 105 dele l,l'-oxybisethan 10 sattes dråbevis en opløsning af 40,6 dele 3-brompyridin i 70 dele 1,1'-oxybisethan. Efter endt tilsætning fortsattes omrøring i 15 minutter og en opløsning af 30 dele 2-(trifluormethyl)benzonitril i 35 dele Ι,Γ-oxybisethan tilsattes dråbevis ved denne lave temperatur. Efter endt tilsætning omrørtes blandingen i 3 timer ved denne lave temperatur.
15 Blandingen opvarmedes til stuetemperatur og udhældtes i 84 dele af en 10 N saltsyreopløsning og lidt knust is. Det vandige lag fraskiltes og opvarmedes til kogepunktet. Efter afkøling gjordes blandingen basisk med en ammoniumhydroxidopløsning og produktet ekstraheredes med dichlor-methan. Ekstrakten tørredes, filtreredes og koncentreredes. Remanensen 20 rensedes ved filtrering over sil icage! under anvendelse af trichlormethan som elueringsmiddel. De rene fraktioner opsamledes og eluerings-midlet koncentreredes, hvilket gav 27,8 dele (63%) (3-pyridinyl)-[2-(trifluormethyl)phenyl]methanon som en olieagtig remanens (mellemprodukt 3).
25 På lignende måde fremstilledes også: [3,5-bis(trifluormethyl)phenyl]-(3-pyridinyl)methanon som en remanens (mellemprodukt 4).
Eksempel 3 30 En blanding af 19 dele a-[3-(dimethoxymethyl)phenyl]-3-pyridin- methanol, 36 dele aktiveret mangan(IV)oxid og 280 dele dichlormethan omrørtes weekenden over ved stuetemperatur. Reaktionsblandingen filtreredes over silicagel og filtratet filtreredes igen over diatoméjord og silicagel. Filtratet inddampedes og remanensen destilleredes i vakuum.
35 Den ønskede fraktion opsamledes, hvilket gav 15,7 dele (82%) [3-(di-methoxymethyl)phenyl]-(3-pyridinyl)methanon (mellemprodukt 6).
På lignende måde fremstilledes også: DK 169517 B1 8 [2-(dimethoxymethyl)phenyl]-(3-pyridinyl)methanon, kgp. 142-147°C (mellemprodukt 7).
B. Fremstilling af forbindelser ifølge opfindelsen 5
Eksempel 4
En blanding af 27,6 dele [3-(trifluormethyl)phenyl]-(3-pyridinyl)-methanon, 8,3 dele hydroxylamin,hydrochlorid, 6,4 dele natriumcarbonat og 160 dele ethanol omrørtes i 24 timer ved tilbagesvalingstemperatur.
10 Efter afkøling frafiltreredes det udfældede produkt (sattes til side) og vaskedes med vand. Ethanoli åget koncentreredes og den resterende remanens vaskedes også med vand, kombineredes med den første fraktion, der var blevet sat til side (se ovenfor) og krystalliseredes fra 120 dele 4-methyl-2-pentanon. Produktet frafiltreredes og tørredes, hvilket gav 20 15 dele (68%) (E+Z)-(3-pyridinyl)-[3-(trifluormethyl)phenyl]methanon,oxim, smp. 185,4°C (mellemprodukt 9).
På lignende måde fremstilledes også: DK 169517 B1 9 i*1''?) ^ 4_ c-Ar . base
NOH
5
Nr. Ar Isomer form Smp. (°C) 10 4-Cl-C6H4- E+Z 151,0 10 11 4-CH,-CfiH4- E+Z 164,4
12 4-F-CgH4- E+Z
13 1-naphthalenyl E+Z 175,3
14 2-naphthalenyl E+Z
16 3,4-(0CH3)2-C6H3- E+Z 151,1 15 -----------------------------------------------------------------
Eksempel 5
Til en omrørt blanding af 4,3 dele (4-methoxyphenyl)-(3-pyridi-nyl)methanon, 1,53 dele hydroxylamin,hydrochlorid og 80 dele ethanol 20 sattes dråbevis 2,1 dele Ν,Ν-diethylethanamin ved stuetemperatur. Efter endt tilsætning fortsattes omrøring natten over ved tilbagesvalingstemperatur. Reaktionsblandingen inddampedes. Remanensen optoges i vand under omrøring. Produktet frafiltreredes, vaskedes med vand og krystalliseredes to gange: først fra acetonitril og dernæst fra ethyl acetat.
25 Produktet frafiltreredes, vaskedes med ethyl acetat og 2,2'-oxybispropan og tørredes i vakuum ved 60°C, hvilket gav 1,68 dele (36,8%) (E+Z)-(4-methoxyphenyl)-(3-pyridinyl)methanon,oxim, smp. 176,0°C (mellemprodukt 21).
30 Eksempel 6
Til en omrørt blanding af 54,2 dele (3-methylphenyl)-(3-pyridi-nyl)methanon, 25,2 dele natriumhydrogencarbonat og 480 dele ethanol sattes 20,8 dele hydroxylamin,hydrochlorid. Omrøring fortsattes natten over ved tilbagesvalingstemperatur. Det udfældede produkt frafiltreredes 35 (filtratet sattes til side) og omrørtes i vand. Det filtrat, som var blevet sat til side (se ovenfor) inddampedes. Remanensen omrørtes i vand. De vandige opløsninger kombineredes. Produktet frafiltreredes, DK 169517 B1 10 vaskedes med vand og 2,2'-oxybispropan og tørredes i vakuum ved 65°C, hvilket gav 52,1 dele (89,3%) (E+Z)-(3-methylphenyl)-(3-pyridinyl)-methanon,oxim, smp. 167,0°C (mellemprodukt 22).
På lignende måde fremstilledes også: 5 (E)-[2-(dimethoxymethyl)phenyl]-(3-pyridinyl)methanon,oxim, smp.
124,2°C (mellemprodukt 23), og (E+Z)-[3-(dimethoxymethyl)phenyl]-(3-pyridinyl)methanon,oxim, smp. 80,6°C (mellemprodukt 24).
10 Eksempel 7
En blanding af 9 dele [3,5-bis(trifluormethyl)phenyl]-(3-pyridi-nyl)methanon, 2,09 dele hydroxylamin,hydrochlorid, 2,46 dele natriumacetat, 60 dele methanol og 50 dele vand omrørtes i 8 timer ved tilbagesvalingstemperatur. Ethanollaget afdampedes. Det udfældede produkt fra-15 filtreredes, vaskedes successivt i vand, 2-propanol og 2,2/-oxybispropan og tørredes, hvilket gav 7,6 dele (81%) [3,5-bis(trifluormethyl)phenyl]-(3-pyridinyl)methanon,oxim, smp. 188°C (mellemprodukt 25).
På lignende måde fremstilledes også: (E+Z)-(3-pyridinyl)-[2-(trifluormethyl)phenyl]methanon,oxim som en 20 remanens (mellemprodukt 26).
Claims (9)
- 2. Forbindelse ifølge krav 1, KENDETEGNET ved, at den er på (E+Z)- form.
- 3. Forbindelse ifølge krav 1, KENDETEGNET ved, at den er på (E)- 20 form.
- 4. Forbindelse ifølge krav 1, KENDETEGNET ved, at den er på (Z)- form.
- 5. Forbindelse ifølge krav 1, KENDETEGNET ved, at den er på alkalimetal- eller jordal kalimetal sal tform.
- 6. Forbindelse ifølge krav 1, KENDETEGNET ved, at den er (E+Z)-(3-pyridinyl)[3-(trifluormethyl)phenyl]methanon,oxim el1 er (E+Z)-[3,5- 30 bis(trifluormethyl)phenyl](3-pyridinyl)methanon,oxim.
- 7. Forbindelse ifølge krav 1, KENDETEGNET ved, at den er (E+Z)-(3-methylphenyl)(3-pyridinyl)methanon,oxim eller (E+Z)-(4-methyl-phenyl)-(3-pyridinyl)methanon,oxim. 35 DK 169517 B1
- 8. Forbindelse ifølge krav 1, KENDETEGNET ved, at den er (E+Z)-(4-methoxyphenyl)(3-pyridinyl)methanon,oxim eller (E+Z)-(3,4-dimethoxy-phenyl)(3-pyridinyl)methanon,oxim.
- 9. Forbindelse ifølge krav 1, KENDETEGNET ved, at den er (E+Z)- (1-naphtha!enyl)(3-pyridi nyl)methanon,oxim.
- 10. Fremgangsmåde til fremstilling af en oximforbindelse ifølge krav 1, KENDETEGNET ved, at man omsætter en keton med formlen 10 f\ (IV) R hvori R har den i krav 1 angivne betydning, eller dets N-oxid med hydroxylamin med formlen 15 H2N0H (IX) eller et syreadditionssalt deraf, i et reaktionsinert opløsningsmiddel. 20 25 30
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79499985A | 1985-11-04 | 1985-11-04 | |
| US79499985 | 1985-11-04 | ||
| US88867086 | 1986-07-23 | ||
| US06/888,670 US4746671A (en) | 1985-11-04 | 1986-07-23 | Pharmaceutical use of [[[(3-pyridinyl)methylen]amino]oxy]alkanoic acids and esters |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK115491D0 DK115491D0 (da) | 1991-06-14 |
| DK115491A DK115491A (da) | 1991-06-14 |
| DK169517B1 true DK169517B1 (da) | 1994-11-21 |
Family
ID=27121572
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK524686A DK164159C (da) | 1985-11-04 | 1986-11-03 | Oeoeoe(3-pyridinyl)methylenaaaminoaaoxyaaalkansyrederivater, fremgangsmaade til fremstilling deraf samt farmaceutiske praeparater indeholdende disse |
| DK115491A DK169517B1 (da) | 1985-11-04 | 1991-06-14 | [Aryl](3-pyridinyl)methanon,oximderivater samt fremgangsmåde til fremstilling deraf |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK524686A DK164159C (da) | 1985-11-04 | 1986-11-03 | Oeoeoe(3-pyridinyl)methylenaaaminoaaoxyaaalkansyrederivater, fremgangsmaade til fremstilling deraf samt farmaceutiske praeparater indeholdende disse |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US4746671A (da) |
| EP (1) | EP0221601B1 (da) |
| JP (1) | JPH0670014B2 (da) |
| AT (1) | ATE86613T1 (da) |
| AU (1) | AU587873B2 (da) |
| CA (2) | CA1298580C (da) |
| CS (1) | CS382391A3 (da) |
| CY (1) | CY1864A (da) |
| DE (1) | DE3687945T2 (da) |
| DK (2) | DK164159C (da) |
| ES (1) | ES2002015A6 (da) |
| FI (1) | FI85372C (da) |
| GR (1) | GR862634B (da) |
| HK (1) | HK114595A (da) |
| IE (1) | IE59775B1 (da) |
| IL (1) | IL80467A (da) |
| LV (1) | LV5768B4 (da) |
| NO (1) | NO170974C (da) |
| NZ (1) | NZ218121A (da) |
| PT (1) | PT83667B (da) |
| SG (1) | SG119194G (da) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB8820578D0 (en) * | 1988-08-31 | 1988-09-28 | Glaxo Group Ltd | Chemical compositions |
| JP2765876B2 (ja) * | 1988-10-24 | 1998-06-18 | 科研製薬株式会社 | ピリジルケトオキシムエーテル誘導体 |
| FR2722193B1 (fr) * | 1994-07-08 | 1996-10-04 | Sanofi Sa | Derives n-oxydes de 1-(7-chloro-4-quinoleinyl)pyrazole-3-carboxamides substitues, procede pour leur preparation et les compositions pharmaceitiques les contenant |
| EP0817631A2 (en) * | 1995-03-28 | 1998-01-14 | Janssen Pharmaceutica N.V. | Low dose ridogrel formulations and their use for the treatment of inflammatory bowel diseases |
| GB9620709D0 (en) * | 1996-10-04 | 1996-11-20 | Danbiosyst Uk | Colonic delivery of weak acid drugs |
| AU2008350907A1 (en) | 2007-12-11 | 2009-08-27 | Viamet Pharmaceuticals, Inc. | Metalloenzyme inhibitors using metal binding moieties in combination with targeting moieties |
| EA027433B1 (ru) * | 2012-10-08 | 2017-07-31 | Дафот Энтерпраизес Лимитед | Производное оксима бензоилпиридина, обладающее противосудорожной активностью |
| CN121005380B (zh) * | 2025-10-23 | 2026-01-06 | 浙江锦华新材料股份有限公司 | 一种基于高纯丁酮肟与电子级酸合成电子级羟胺盐的方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003734A (en) * | 1974-01-22 | 1977-01-18 | The Dow Chemical Company | Substituted pyridinyloxy(thio)phenyl-acetamides, -ureas and urea derivatives and herbicidal compositions and methods containing said compounds |
| DE2415063A1 (de) * | 1974-03-28 | 1975-10-16 | Bayer Ag | Pyridylalkylamidine, verfahren zu ihrer herstellung sowie ihre verwendung als arzneimittel |
| CH616406A5 (en) * | 1975-06-27 | 1980-03-31 | Siegfried Ag | Process for the preparation of novel oxime derivatives |
| US4092419A (en) * | 1976-06-15 | 1978-05-30 | Merck & Co., Inc. | Substituted (3-loweralkylamino-2-R1 O-propoxy)pyridines, their preparation and use |
| US4297359A (en) * | 1978-07-25 | 1981-10-27 | Acf Chemiefarma Nv | Anti-ulcer compositions containing certain pyridyl oxime ethers |
| US4287346A (en) * | 1979-02-16 | 1981-09-01 | Eisai Co., Ltd. | Cyanoguanidine derivatives |
| US4518602A (en) * | 1982-10-07 | 1985-05-21 | Takeda Chemical Industries, Ltd. | Vinyl carboxylic acid derivatives, their production and use as inhibitors of thromboxane synthetase |
| GB8311003D0 (en) * | 1983-04-22 | 1983-05-25 | Shell Int Research | Aniline compounds |
| JPS6078966A (ja) * | 1983-10-04 | 1985-05-04 | Nippon Tokushu Noyaku Seizo Kk | トリクロルアクリロイルオキシム誘導体,その製法及び農業用殺菌剤 |
| IT1175720B (it) * | 1984-09-13 | 1987-07-15 | Baldacci Lab Spa | Composti derivati dell'acido beta-ossimino-propionico ad attivita' terapeutica,procedimento per la loro preparazione e composizioni farmaceutiche che li contengono |
-
1986
- 1986-07-23 US US06/888,670 patent/US4746671A/en not_active Expired - Lifetime
- 1986-09-29 ES ES8602279A patent/ES2002015A6/es not_active Expired
- 1986-10-06 CA CA000519851A patent/CA1298580C/en not_active Expired - Fee Related
- 1986-10-22 DE DE8686201836T patent/DE3687945T2/de not_active Expired - Lifetime
- 1986-10-22 EP EP86201836A patent/EP0221601B1/en not_active Expired - Lifetime
- 1986-10-22 AT AT86201836T patent/ATE86613T1/de not_active IP Right Cessation
- 1986-10-30 NZ NZ218121A patent/NZ218121A/xx unknown
- 1986-10-30 GR GR862634A patent/GR862634B/el unknown
- 1986-10-31 IL IL80467A patent/IL80467A/xx not_active IP Right Cessation
- 1986-11-03 NO NO864379A patent/NO170974C/no not_active IP Right Cessation
- 1986-11-03 DK DK524686A patent/DK164159C/da not_active IP Right Cessation
- 1986-11-03 PT PT83667A patent/PT83667B/pt unknown
- 1986-11-03 FI FI864461A patent/FI85372C/fi not_active IP Right Cessation
- 1986-11-03 AU AU64825/86A patent/AU587873B2/en not_active Expired
- 1986-11-03 IE IE288886A patent/IE59775B1/en not_active IP Right Cessation
-
1990
- 1990-07-17 JP JP2187317A patent/JPH0670014B2/ja not_active Expired - Fee Related
-
1991
- 1991-04-30 CA CA000616060A patent/CA1319151C/en not_active Expired - Fee Related
- 1991-06-14 DK DK115491A patent/DK169517B1/da not_active IP Right Cessation
- 1991-12-16 CS CS913823A patent/CS382391A3/cs unknown
-
1994
- 1994-08-20 SG SG119194A patent/SG119194G/en unknown
-
1995
- 1995-07-13 HK HK114595A patent/HK114595A/en not_active IP Right Cessation
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1996
- 1996-04-05 CY CY186496A patent/CY1864A/xx unknown
- 1996-06-18 LV LV960188A patent/LV5768B4/xx unknown
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