DK165406B - Substituerede n-(2,4,6-trimethoxyphenyl)-fedtsyreamider, fremgangsmaade til fremstilling deraf, farmaceutisk praeparat indeholdende disse forbindelser samt anvendelse af disse forbindelser til fremstilling af et farmaceutisk praeparat til inhibering af intestinal absorption af kolesterol - Google Patents
Substituerede n-(2,4,6-trimethoxyphenyl)-fedtsyreamider, fremgangsmaade til fremstilling deraf, farmaceutisk praeparat indeholdende disse forbindelser samt anvendelse af disse forbindelser til fremstilling af et farmaceutisk praeparat til inhibering af intestinal absorption af kolesterol Download PDFInfo
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- DK165406B DK165406B DK094188A DK94188A DK165406B DK 165406 B DK165406 B DK 165406B DK 094188 A DK094188 A DK 094188A DK 94188 A DK94188 A DK 94188A DK 165406 B DK165406 B DK 165406B
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- DK
- Denmark
- Prior art keywords
- trimethoxyphenyl
- dimethyl
- methyl
- carbon atoms
- carbon
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- 239000000975 dye Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 1
- 229940081141 hexadecanamide Drugs 0.000 description 1
- ALBYIUDWACNRRB-UHFFFAOYSA-N hexanamide Chemical compound CCCCCC(N)=O ALBYIUDWACNRRB-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- LBHQTVBKPMHICN-UHFFFAOYSA-N icos-11-enamide Chemical compound CCCCCCCCC=CCCCCCCCCCC(N)=O LBHQTVBKPMHICN-UHFFFAOYSA-N 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012669 liquid formulation Substances 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- ZIYVHBGGAOATLY-UHFFFAOYSA-N methylmalonic acid Chemical compound OC(=O)C(C)C(O)=O ZIYVHBGGAOATLY-UHFFFAOYSA-N 0.000 description 1
- 210000001589 microsome Anatomy 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000000802 nitrating effect Effects 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000020925 non fasting Nutrition 0.000 description 1
- 235000021590 normal diet Nutrition 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- IPWFJLQDVFKJDU-UHFFFAOYSA-N pentanamide Chemical compound CCCCC(N)=O IPWFJLQDVFKJDU-UHFFFAOYSA-N 0.000 description 1
- 239000002831 pharmacologic agent Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- FVLAYJRLBLHIPV-UHFFFAOYSA-N pyrimidin-5-amine Chemical class NC1=CN=CN=C1 FVLAYJRLBLHIPV-UHFFFAOYSA-N 0.000 description 1
- 230000009103 reabsorption Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000013222 sprague-dawley male rat Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000007885 tablet disintegrant Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000000196 tragacanth Substances 0.000 description 1
- 235000010487 tragacanth Nutrition 0.000 description 1
- 229940116362 tragacanth Drugs 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 238000005303 weighing 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
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- 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
- C07D213/36—Radicals substituted by singly-bound nitrogen atoms
- C07D213/40—Acylated substituent nitrogen atom
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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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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
- C07C233/04—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C233/07—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a six-membered aromatic ring
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
- C07C233/09—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic unsaturated carbon skeleton
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- 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
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/52—Two oxygen atoms
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Description
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i
Den foreliggende opfindelse angår hidtil ukendte substituerede N-(2,4,6-trimethoxyphenyl)-fedtsyreamider med formlen I, en fremgangsmåde til fremstilling deraf, farmaceutiske præparater, som indeholder disse forbindelser, samt anvendelse deraf til fremstilling af et farmaceutisk 5 præparat til inhibering af intestinal absorption af kolesterol. Mere specielt angår opfindelsen visse substituerede amider af a-substituerede eller a,ar-disubstituerede alkan- og alkensyrer, som inhiberer acyl-coenzym A:kolesterol-acyltransferase (ACAT), farmaceutiske præparater indeholdende disse forbindelser og anvendelse deraf til fremstilling af 10 et farmaceutisk præparat til inhibering af intestinal absorption af kolesterol.
I de senere år har der været stor opmærksomhed rettet mod den rolle, som forhøjede blodplasmakoncentrationer af kolesterol spiller for patologiske tilstande hos mennesker. Deponeringer af kolesterol i det 15 vaskulære system er blevet anset for at være årsag til en række forskellige patologiske tilstande, herunder coronar hjertesygdom.
I begyndelsen var studier af dette problem rettet mod at finde terapeutiske midler, der ville være effektive til sænkning af totale serum-kolesterol værdi er. Det vides nu, at kolesterol transporteres i 20 blodet i form af komplekse partikler bestående af en kerne af koleste-rylestere plus triglycerider samt en kappe bestående primært af phospho-1 i pi der og en række forskellige proteintyper, som genkendes af specifikke receptorer. For eksempel vides det nu, at kolesterol bæres til deponeringsstederne i blodkarrene i form af lavdensitet lipoprotein-25 kolesterol (LDL kolesterol) og bort fra sådanne deponeringssteder i form af højdensitet 1 ipoproteinkolesterol (HDL kolesterol).
Efter disse opdagelser blev søgningen efter terapeutiske midler, som kontrollerer serumkolesterol, rettet mod at finde forbindelser, som er mere selektive i deres virkning, dvs. midler, som er effektive til 30 hævning af blodserumindholdet af HDL kolesterol og/eller sænkning af indholdet af LDL kolesterol. Selv om sådanne midler er effektive til at moderere indholdet af serumkolesterol, har de ringe eller ingen virkning på kontrol af absorptionen af diætært kolesterol i legemet gennem tarmvæggen .
35 I i ntesti nåle mucosale celler absorberes diætært kolesterol som fri kolesterol, der skal esterificeres ved virkningen af enzymet acyl-CoA:kolesterol-acyltransferase (ACAT), før det kan indpakkes i chylo-micronerne, der dernæst frigøres i blodbanerne. Terapeutiske midler, som 2
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effektivt inhiberer virkningen af ACAT, forhindrer derfor den i ntesti -nåle absorption af diætært kolesterol i blodbanerne eller reabsorptionen af kolesterol, som tidligere er blevet frigjort i tarmen gennem legemets egen reguleringsvirkning.
5 Den foreliggende opfindelse tilvejebringer en gruppe forbindelser med ACAT i nhi bi tori sk aktivitet med formlen ?i ,0 OCH, I // \’ ίο * i \_y=\_ i / yj™' och3 15 hvori A er en uforgrenet carbonhydridgruppe indeholdende fra 1-20 car-bonatomer og som kan indeholde fra 1-3 carbon-carbon dobbeltbindinger,
Rj er hydrogen eller al kyl med fra 1-4 carbonatomer eller phenyl-methyl, R2 er al kyl med fra 1-4 carbonatomer eller phenylmethyl, eller Rj og R2 sammen med det carbonatom, hvortil de er bundet, danner en 20 mættet carbocyklisk ring med fra 3-7 carbonatomer.
Udtrykket "alkyl" skal som her anvendt betyde en forgrenet eller uforgrenet carbonhydridgruppe afledt af et mættet carbonhydrid ved fjernelse af et enkelt hydrogenatom. Eksempler på al kyl grupper, som efter hensigten falder inden for opfindelsens rammer, omfatter methyl, ethyl, 25 propyl, 1-methyl ethyl, butyl, 1-methyl propyl, 2-methyl propyl og 1,1-dimethyl ethyl .
De forbindelser ifølge den foreliggende opfindelse, hvori a-car-bonatomet for amidets syredel kun er monosubstitueret, har et asymmetri-center ved dette carbonatom og er i stand til at eksistere i to enantio-30 mere former. Den foreliggende opfindelse skal omfatte alle mulige optisk isomere former samt blandinger deraf.
Forbindelserne ifølge den foreliggende opfindelse udgør en gruppe af amider af α-substituerede eller α,α-disubstituerede ligekædede syrer, som er inhibitorer af enzymet acyl-CoA:kolesterol-acyltransferase (ACAT) 35 og som derfor er nyttige som farmakologiske midler til inhibering af den intestinale absorption af kolesterol.
Forbindelserne ifølge den foreliggende opfindelse er substituerede med phenylmethylgrupper eller en eller flere al kyl grupper indeholdende 3
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fra 1-4 carbonatomer på α-carbonatomet for amidets syredel. Foretrukne forbindelser ifølge opfindelsen er sådanne, hvori a-carbon-substituen-terne Rj og R£ er methyl, ethyl eller phenylmethyl eller sådanne forbindelser, hvori Rj og R£ sammen med det carbonatom, hvortil de er 5 bundet, danner en mættet carbocyklisk ring med fra 3-7 carbonatomer. Når en eller flere alkylgrupper er bundet til α-carbonatomet (dvs. carbon-atomet umiddelbart ved siden af carbonyl funktionen) i syreresten af amidforbindelserne ifølge opfindelsen, har det vist sig, at den in vivo ACAT i nhi bi tori ske aktivitet forøges i forhold til de tilsvarende usub-10 stituerede forbindelser.
Amidnitrogenet i forbindelserne ifølge den foreliggende opfindelse er substitueret med 2,4,6-trimethoxyphenyl.
Foretrukne forbindelser ifølge opfindelsen er sådanne, hvori al kyl-substituenterne indeholder et eller to carbonatomer, dvs. methyl, 15 ethyl.
Forbindelser, som falder inden for opfindelsens rammer, eksemplificeres i det følgende: 2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)dodecanamid.
2-methyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid.
20 2-ethyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid.
2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid.
2-methyl-N-(2,4,6-trimethoxyphenyl)hexadecanamid.
2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)hexadecanamid.
2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)octadecanamid.
25 1-decyl-N-(2,4,6-trimethoxyphenyl)cyklobutancarboxamid.
1-decyl-N-(2,4,6-trimethoxyphenyl)cyklopentancarboxamid.
(Z)-2-methyl-N-(2,4,6-trimethoxyphenyl)-9-octadecenamid.
(Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-9-octadecenamid.
(Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-ll-eicosenamid.
30 Forbindelserne ifølge den foreliggende opfindelse fremstilles ved en fremgangsmåde, som er ejendommelig ved det i krav 6's kendetegnende del angivne.
Omsætningen kan udføres ved enhver temperatur mellem 0°C og opløsningsmidlets kogepunkt, hvor lavere temperaturer foretrækkes.
35 Omsætningen får lov at forløbe, indtil analyse af blandingen ved hjælp af midler såsom kromatografi viser i det væsentlige fuldstændig reaktion mellem syrechloridet og den substituerede amin. Reaktionstider kan variere mellem ca. 2 timer og ca. 24 timer afhængigt af de særlige 4
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reagenser og den reaktionstid, som anvendes.
Udgangsmaterialerne er kendte eller kan, såfremt de ikke er tidligere kendte, fremstilles på i og for sig kendt måde. For eksempel fremstilles de som udgangsmaterialer anvendte α-alkyl-substituerede 5 syrer ved først at omdanne di ethylmal onat til det ønskede al kyl di ethyl -mal onat og dernæst omsætte natriumsaltet af alkyldiethylmalonatet med en bromal kan under anvendelse af konventionelle metoder. Produktet fra denne omsætning hydrolyseres dernæst og decarboxyleres ved hjælp af kendte metoder til dannelse af den α-alkyl-substituerede syre. Syren om-10 dannes til syrechloridet ved omsætning med thionylchlorid, oxalylchlo-rid, phosphorylchlorid eller lignende på konventionel måde.
De som udgangsmaterialer anvendte α,α-dialkyl-substituerede syrer kan fremstilles ved én af to alternative fremgangsmåder. I det tilfælde, hvor begge α-substituenter er methyl, omsættes den passende bromal kan 15 med lithiumsaltet af i sosmørsyre eller en ester af i sosmørsyre til dannelse af den ønskede α,α-dimethyl syre.
Ved den alternative fremgangsmåde til fremstilling af de a!,a-di-alkyl-substituerede syrer omsættes den passende bromal kan med natriumsaltet af diethylmal onat til dannelse af det al kyl-substituerede di-20 ethylmal onat. Denne ester hydrolyseres dernæst til den tilsvarende al kyl-substituerede malonsyre og decarboxyleres på konventionel måde.
Den resulterende monocarboxylsyre α-alkyleres dernæst ved først at omdanne syren til dens α-lithium-carbanionsalt og dernæst omsætte dette salt med det passende al kyl halogenid. En anden α-alkyl-substituent 25 fastgøres ved at gentage denne procedure.
Detaljer for reaktionsbetingelserne til fremstilling af a-lithium-carbanionsaltet af syrer eller estere og for omdannelse af disse salte til α-alkyl-substituerede syrer eller estere findes i P. Creger,
Org.Syn., Vol. 50, pp 58 ff., John Wiley & Sons, New York, 1970.
30 De som udgangsmaterialer anvendte substitueret benzenamin og sub stitueret phenylmethyl amin fremstilles på i og for sig kendt måde.
De substituerede pyrimidin-5-ylaminer fremstilles ud fra mono-, di- eller trichlorpyrimidinerne ved først at nitrere chlorpyrimidinerne til dannelse af de chlorerede 5-nitropyrimidiner. Chlor-substituenterne 35 erstattes dernæst af alkoxy-substituenter ved at opvarme nitrochlorpyri-midi nerne med natriumsaltet af den ønskede alkohol i den samme alkohol som opløsningsmiddel under tilbagesvalingsbetingelser. Efter omdannelse af chlor-5-nitropyrimidinerne til de tilsvarende alkoxy-5-nitropyrimidi- 5
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ner reduceres nitrogruppen til en aminfunktion på konventionel måde, som f.eks. ved katalytisk hydrogenering.
Som vist i de i nedenstående tabel I angivne data er forbindelserne ifølge den foreliggende opfindelse kraftige inhibitorer af enzymet 5 acyl-CoA:kolesterol-acyltransferase (ACAT), og de er derfor effektive til inhi bering af esterificeringen og transporten af kolesterol gennem den intestinale cellevæg.
Evnen hos repræsentative forbindelser ifølge opfindelsen til at inhibere ACAT måltes ved anvendelse af en in vitro test, som er mere 10 detaljeret beskrevet i Field, F.J. og Salone, R.G., Biochemica et Bio-physica 712: 557-570 (1982). Testen vurderer evnen hos en forbindelse til at inhibere acyleringen af kolesterol af oleinsyre ved at måle mængden af radiomærket kolesterololeat dannet ud fra radiomærket oleinsyre i et vævspræparat indeholdende intestinale kanin-microsomer.
15 De nævnte data er vist i tabel I, hvor de er udtrykt som ICgg- værdier, dvs. den koncentration af en testforbindelse, som kræves for at inhibere kolesterolesterificering med 50%.
Tabel I
Forbindelse IC^q (Micromolær) 2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)dodecanamid 0,042 25 2-methyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid 0,13 2-ethyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid 0,05 30 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid 0,063 2-methyl-N-(2,4,6-trimethoxyphenyl)hexadecanamid 0,031 2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)hexadecanamid 0,044 35 2.2- d i methyl -N-(2,4,6-tri methoxyphenyl)octadecanami d 0,087 1-decyl-N-(2,4,6-trimethoxyphenyl)cyklopentancarboxamid 0,007 40 (Z)-2-methyl-N-(2,4,6-trimethoxyphenyl)-9-octadecenamid 0,034 (Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-9-octadecenamid 0,044 (Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-11-eicosenamid 0,11 * 6
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In vivo tests I den kolesterol fodrede kanintest fodredes New Zealand hvide kaniner af hankøn, der vejede ca. 1 kg, med en normal diæt på 40 g pr. dag kaninfoder (Purina nr. 5321, Ralston Purina Co., 711 West Fuesser 5 Road, Mascoutah, Illinois 62224, U.S.A.). Efter seks dage på denne diæt fodredes kaninerne med 50 g pr. dag i tre dage af en kolesterol beriget kost bestående af én del kolesterol hol digt foder (Purina Catalog nr. 841206WLI, 0,25% kolesterol) og to dele normalt foder. Dernæst fodredes kaninerne med 60 g pr. dag i fire dage af en kolesterol beriget kost 10 bestående af to dele kolesterol hol digt foder (Purina Catalog nr.
841206WLI, 0,25% kolesterol) samt én del normalt foder.
Efter denne periode med måltidstilpasning og kolesterol optagel se administreredes testforbindelserne ifølge opfindelsen til forsøgsdyrene i orale doser på 50 mg/kg legemsvægt 30 minutter før hvert måltid i syv 15 dage. Kontroldyr fik kun indgivet vehikel.
Dyrene si agtedes tre timer efter deres sidste måltid i den post-absorptive tilstand. Serumkolesterol værdierne bestemtes for hvert dyr, og resultaterne fremgår af tabel II udtrykt som procent ændring i serumkolesterol indhold i forhold til kontroldyr.
20 I den kolesterol fodrede rottetest opdel tes Sprague-Dawley rotter af hankøn (ca. 200 g legemsvægt) tilfældigt i grupper og havde adgang ad libitum til en regulær rottemadsdiæt (Purina nr. 5002) tilsat 5,5% jord-nøddeolie, 1,5% kolesterol og 0,3% cholinsyre med eller uden lægemiddel iblandet i de angivne mængder (vægt/vægt). Efter en uge etheriseredes 25 dyrene (ikke fastende), og blod blev udtaget fra hjertet i EDTA (0,14% slutkoncentration) til måling af total kolesterol under anvendelse af en "Abbott VP Analyzer".
Resultaterne af undersøgelsen in vivo for repræsentative forbindelser ifølge den foreliggende opfindelse er vist i tabel II.
30 35
Tabel II
7
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Forbindelse Procent reduktion i kolesterol 5 Kanin Rotte 2,2-dimethyl-N-(2,4,6-trimethoxy- -67 -54 phenyl)dodecanamid 10 2-methyl-N-(2,4,6-trimethoxyphenyl)- -45 -52 tetradecanamid l-decyl-N-(2,4,6-trimethoxyphenyl)- -52 15 cyklopentancarboxamid
Opfindelse angår endvidere et farmaceutisk præparat, der er ejendommeligt det i krav 4's kendetegnende del angivne.
20 Til fremstilling af farmaceutiske præparater ud fra forbindelserne ifølge opfindelsen kan inerte farmaceutisk acceptable bærere være enten faste eller flydende. Faste præparatformer omfatter pulvere, tabletter, dispergerbare granulater, kapsler og oblatkapsler.
En fast bærer kan være et eller flere stoffer, der også kan virke 25 som diluenter, smagsstoffer, opløsel ighedsfremmende midler, smøremidler, suspensionsmidler, bindemidler eller tabletdisintegreringsmidler. Den kan også være et indkapslingsmateriale.
I pulvere er bæreren et fi ndelt faststof, som er i en blanding med den findelte aktive komponent. I tabletter blandes den aktive forbinde!-30 se med bæreren med de nødvendige bindingsegenskaber i egnede mængder og sammenpresses i den ønskede form og størrelse.
Pulvere og tabletter indeholder fortrinsvis mellem ca. 5 og ca. 70 vægt% af den aktive bestanddel. Egnede bærere er magnesiumcarbonat, magnesiumstearat, talkum, lactose, sukker, pectin, dextrin, stivelse, 35 tragacanth, methyl cel lul ose, natriumcarboxymethylcellulose, en lavtsmel-tende voks, cacaosmør og lignende.
Udtrykket "præparat" skal omfatte formuleringen af den aktive forbindelse med indkapslingsmateriale som en bærer til dannelse af en kapsel, hvori den aktive komponent (med eller uden andre bærere) er omgivet 40 af en bærer, der således er i forbindelse dermed. På ti Isvarende måde er oblatkapsler også omfattede.
Tabletter, pulvere, oblatkapsler og kapsler kan anvendes som faste 8
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doseringsformer, der er egnede til oral administrering.
Flydende præparatformer omfatter opløsninger, som er egnede til oral administrering, eller suspensioner og emulsioner, der er egnede til oral administrering. Vandige opløsninger til oral administrering kan 5 fremstilles ved at opløse den aktive forbindelse i vand og tilsætte passende smagsstoffer, farvestoffer, stabilisatorer og fortykningsmidler efter ønske. Vandige suspensioner til oral brug kan fremstilles ved at dispergere den findelte aktive komponent i vand sammen med et viskost materiale såsom naturlige eller syntetiske gummi arter, harpikser, 10 methyl cellulose, natriumcarboxymethylcel lul ose og andre suspensionsmidler, som kendes inden for den farmaceutiske formuleringsteknik.
Fortrinsvis er det farmaceutiske præparat på enhedsdosisform. I en sådan form opdeles præparatet i enhedsdoser indeholdende passende mængder af den aktive komponent. Enhedsdosisformen kan være et pakket præpa-15 rat, hvor pakken indeholder adskilte mængder af præparatet, f.eks. pakkede tabletter, kapsler og pulvere i hætteglas eller ampuller. Enhedsdosisformen kan også være en kapsel, oblatkapsel eller selve tabletten, eller den kan være et passende antal af enhver af disse pakkede former.
Til terapeutisk brug som midler til inhibering af intestinal 20 absorption af kolesterol administreres de omhandlede forbindelser til patienten i dosisniveauer fra 500 til 2000 mg pr. dag. For et normalt voksent menneske på ca. 70 kg legemsvægt svarer dette til en dosis fra 7 til 30 mg/kg legemsvægt pr. dag. De specifikt anvendte doser kan imidlertid varieres i afhængighed af patientens krav, alvoren af tilstanden, 25 som behandles, og aktiviteten af den anvendte forbindelse. Bestemmelsen af optimale doser for en bestemt situation er fagmæssig.
Opfindelsen belyses nærmere i de følgende fremstil!ingseksempler.
Repræsentativt eksempel for fremstillingen af 30 en α,α-dialkylalkansyre
Fremstilling af 2,2-dimethyloctadecansyre
Diisopropylamin (20,6 ml, 28,6 g, 0,283 mol) opløstes i 250 ml tør tetrahydrofuran. Til denne blanding sattes 13,6 g (0,283 mol) 50% na-35 triumhydrid. Isosmørsyre (26,2 ml, 24,9 g, 0,283 mol) tilsattes dråbevist under omrøring, og temperaturen fik lov at stige. Efter at tilsætningen af syren var afsluttet, opvarmedes blandingen under tilbagesvaling i yderligere 20 minutter. Blandingen afkøledes dernæst til 0°C og
LMV I DOHUO D
9 118 ml (0,283 mol) 2,4 M n-butyllithium tilsattes langsomt, idet temperaturen holdtes under 5°C. Da tilsætningen, var færdig, omrørtes blandingen ved isbadstemperatur i 15 minutter og henstod dernæst til opvarmning til stuetemperatur og omrørtes i yderligere to timer.
5 Blandingen afkøledes til 0°C, og 99,7 g (0,283 mol) 1-iodhexadecan tilsattes dråbevist. Den resulterende blanding omrørtes ved isbadstemperatur i en time, henstod til opvarmning til stuetemperatur og omrørtes ved stuetemperatur natten over.
Blandingen afkøledes igen til 0°C, og 400 ml vand tilsattes under 10 afkøling. Det vandige lag ekstraheredes med diethylether, og de forenede organiske lag tørredes og inddampedes til dannelse af en svær gummi.
Dette materiale opsamledes i varmt vand, opløsningen gjordes stærkt sur med koncentreret saltsyre. Denne blanding ekstraheredes med diethylether, etherlaget fraskiltes, vaskedes med saltvand, tørredes og inddam-15 pedes til dannelse af 92,1 g 2,2-dimethyloctadecansyre, smp. 50-53°C.
Repræsentativt eksempel for fremstillingen af en Q!-alkylalkansyre (alternativ fremgangsmåde) 20
Fremstilling af 2-methylhexadecansyre
Metallisk natrium (12,06 g, 0,52 mol) opløstes i 400 ml absolut ethanol. 2-methyl-1,3-propandionsyre, diethylester (95,8 g, 0,55 mol) sattes dråbevist til natriumethoxidopløsningen under omrøring. Da ti 1 -25 sætningen var afsluttet, opvarmedes blandingen under til bagesval ing i 15 minutter.
1-bromtetradecan (138,65 g, 0,5 mol) sattes dråbevist under omrøring til den ovennnævnte blanding, og den resulterende blanding omrørtes og opvarmedes natten over under tilbagesvaling.
30 Herefter afkøledes blandingen, neutraliseredes med eddikesyre og koncentreredes under vakuum til halvdelen af dens oprindelige volumen.
Denne rest fortyndedes med vand, og den vandige fase fraskiltes og ekstraheredes to gange med diethylether. De organiske lag forenedes, vaskedes med vand, tørredes over vandfrit magnesiumsulfat og inddampedes til 35 dannelse af en olie.
Denne olie blandedes med 112 g (1,8 mol) 85% kaliumhydroxid i 900 ml 95% ethanol, og den resulterende blanding opvarmedes til tilbagesvaling. Efter ca. en halv time blev reaktionen temmelig voldsom. Blandin-
DK 165406B
10 gen omrørtes under tilbagesvaling natten over, afkøledes til stuetemperatur og gjordes stærkt sur med koncentreret saltsyre. Blandingen af køledes og filtreredes. Det faste stof opsamledes i diethyl ether, tørredes og inddampedes under vakuum til dannelse af 2-methyl-2-tetradecylmalon-5 syre, smp. 83-85°C.
Det faste stof opvarmedes under omrøring til 165°C, hvorefter udvikling af COg begyndte. Temperaturen steg .hurtigt til 190°C under kraftig udvikling af COg. Det faste stof opvarmedes dernæst i yderligere en halv time ved 185-190°C til dannelse af 81,3 g 2-methylhexadecansyre, 10 smp. 44-46°C.
Repræsentativt eksempel på fremstillingen af et amid 15 Fremstilling af N-(2,4,6-trimethoxyphenyl)-2-meth.ylhexadecanamid 2-methylhexadecansyre (27,0 g, 0,1 mol) blandedes med 100 ml thi0-nylchlorid, og den resulterende blanding omrørtes og opvarmedes under tilbagesvaling i otte timer og omrørtes dernæst ved stuetemperatur natten over. Blandingen koncentreredes under vakuum, diethylether ti 1 -20 sattes, og blandingen koncentreredes igen under vakuum. Remanensen destilleredes til dannelse af 25,8 g 2-methylhexadecanoylchlorid, kp. 120-125°C ved 0,22 mm Hg.
2,4,6-trimethoxyphenylamin,hydrochlorid (6,58 g, 0,03 mol) og 8,3 ml (6,06 g, 0,06 mol) triethylamin opløstes i 100 ml tetrahydrofuran.
25 Til denne blanding sattes langsomt under omrøring 8,65 g 2-methylhexadecanoylchlorid. Den resulterende blanding omrørtes ved stuetemperatur natten over, filtreredes, og filtratet koncentreredes under vakuum. Vand sattes til remanensen, det resulterende faststof opsamledes ved filtrering og omkrystalliseredes fra isopropyl ether til dannelse af 12,0 g 30 N-2,4,6-(trimethoxyphenyl)-2-methylhexadecanamid, smp. 109-111°C.
Under anvendelse af de ovenfor beskrevne almene fremgangsmåder fremstilledes følgende forbindelser ifølge den foreliggende opfindelse.
35
Tabel III
UIV ΙΌΟ^+UO D
11
Eksempel Forbindelse Smp. (°C) 5 1 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)- 59-60 dodecanamid 2 2-methyl-N-(2,4,6-trimethoxyphenyl )tetra- 109-111 decanamid 10 3 2-ethyl-N-(2,4,6-trimethoxyphenyl)tetra- 98-99 decanamid 4 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)- 61-63 15 tetradecanamid 5 2-methyl-N-(2,4,6-trimethoxyphenyl)hexa- 109-111 decanamid 20 6 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)- 63-65 hexadecanamid 7 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)- 68-70 octadecanamid 25 8 l-decyl-N-(2,4,6-trimethoxyphenyl)cyklo- 89-90 butancarboxamid 9 l-decyl-N-(2,4,6-trimethoxyphenyl)cyklo- 73-74 30 pentancarboxamid 10 (Z)-2-methyl-N-(2,4,6-trimethoxyphenyl)-9- Voks octadecenamid 35 11 (Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)- Voks 9-octadecenamid 12 (Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)- Voks 11-eicosenamid 45 50
Claims (9)
1. Substituerede N-(2,4,6-trimethoxyphenyl)-fedtsyreamider med formi en .0 OCH, i // \ _ a—c—c >=\
5 I \ 1 1 / /r och3 hvori A er en uforgrenet carbonhydridgruppe indeholdende fra 1-20 carlo bonatomer og som kan indeholde fra 1-3 carbon-carbon dobbeltbindinger, Rj er hydrogen eller al kyl med fra 1-4 carbonatomer eller phenyl-methyl, Rg er alkyl med fra 1-4 carbonatomer eller phenylmethyl, eller Rj og R2 sammen med det carbonatom, hvortil de er bundet, danner 15 en mættet carbocyklisk ring med fra 3-7 carbonatomer.
2. Forbindelse ifølge krav 1, KENDETEGNET ved, AT den er udvalgt fra gruppen bestående af 2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)dodecanamid, 2-methyl-N-(2,4,6-tri methoxyphenyl)tetradecanami d, 20 2-ethyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid, 2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid, 2-methyl-N-(2,4,6-trimethoxyphenyl)hexadecanamid, 2.2- d i methyl-N-(2,4,5-tri methoxyphenyl)hexadecanami d, 2.2- d i methyl-N-(2,4,6-tri methoxyphenyl)octadecanami d, 25 1-decyl-N-(2,4,6-tri methoxyphenyl)cyklobutancarboxami d, 1-decyl-N-(2,4,6-trimethoxyphenyl}cyklopentancarboxami d, (Z)-2-methyl-N-(2,4,6-trimethoxyphenyl)-9-octadecenamid, (Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-9-octadecenamid og (Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-ll-eicosenamid. 30 3. 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-dodecanamid.
4. Farmaceutisk præparat, KENDETEGNET ved, AT det omfatter en forbindelse ifølge krav 1-3 i kombination med en farmaceutisk acceptabel bærer.
5. Anvendelse af en forbindelse ifølge krav 1-3 til fremstilling 35 af et farmaceutisk præparat til i nhi bering af intestinal absorption af kolesterol.
6. Fremgangsmåde til fremstilling af en forbindelse med den almene formel DK 165406 B ,0 OCH, 1 // \’ i H------u /) ' OCHj 2 /yj 1 5 00113 hvori A er en uforgrenet carbonhydridgruppe indeholdende fra 1-20 carbonatomer og som kan indeholde fra 1-3 carbon-carbon dobbeltbindinger, Rj er hydrogen eller al kyl med fra 1-4 carbonatomer eller phenyl-methyl,
10 Rg er alkyl med fra 1-4 carbonatomer eller phenylmethyl, eller Rj og R2 sammen med det carbonatom, hvortil de er bundet, danner en mættet carbocyklisk ring med fra 3-7 carbonatomer, KENDETEGNET ved, AT man omsætter et syrechlorid med formlen R, y° 15 a-c-c/ Rj hvori A, Rj og R2 har de ovenfor anførte betydninger, med 2,4,6-trimethoxy-phenylamin, i et inert opløsningsmiddel i nærværelse af en 20 tertiær amin i et tidsrum, der er tilstrækkeligt til at bevirke i det væsentlige fuldstændig reaktion og isolerer det resulterende amidprodukt på i det væsentlige ren form ved hjælp af konventionelle midler.
7. Fremgangsmåde ifølge krav 6, KENDETEGNET ved, AT den fremstillede forbindelse er valgt blandt 25 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)dodecanamid, 2-methyl-N-(2,4,6-trimethoxyphenyl)tetradecanami d, 2-ethyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid, 2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)tetradecanamid, 2-methyl-N-(2,4,6-trimethoxyphenyl)hexadecanamid, 30 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)hexadecanamid, 2.2- dimethyl-N-(2,4,6-trimethoxyphenyl)octadecanamid, 1-decyl-N-(2,4,6-trimethoxyphenyl)cyklobutancarboxamid, l-decyl-N-(2,4,6-trimethoxyphenyl)cyklopentancarboxamid, (Z)-2-methyl-N-(2,4,6-trimethoxyphenyl)-9-octadecenamid, 35 (Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-9-octadecenamid og (Z)-2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)-ll-eicosenamid.
8. Fremgangsmåde ifølge krav 7, KENDETEGNET ved, AT den fremstillede forbindelse er 2,2-dimethyl-N-(2,4,6-trimethoxyphenyl)dodecanamid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/017,960 US4716175A (en) | 1987-02-24 | 1987-02-24 | Saturated fatty acid amides as inhibitors of acyl-CoA:cholesterol acyltransferase |
| US1796087 | 1987-02-24 |
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| Publication Number | Publication Date |
|---|---|
| DK94188D0 DK94188D0 (da) | 1988-02-23 |
| DK94188A DK94188A (da) | 1988-08-25 |
| DK165406B true DK165406B (da) | 1992-11-23 |
| DK165406C DK165406C (da) | 1993-04-13 |
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| DK094188A DK165406C (da) | 1987-02-24 | 1988-02-23 | Substituerede n-(2,4,6-trimethoxyphenyl)-fedtsyreamider, fremgangsmaade til fremstilling deraf, farmaceutisk praeparat indeholdende disse forbindelser samt anvendelse af disse forbindelser til fremstilling af et farmaceutisk praeparat til inhibering af intestinal absorption af kolesterol |
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| EP (1) | EP0283742B1 (da) |
| JP (1) | JPH07121895B2 (da) |
| KR (1) | KR880009933A (da) |
| AT (1) | ATE89814T1 (da) |
| CA (1) | CA1336913C (da) |
| DE (1) | DE3881249T2 (da) |
| DK (1) | DK165406C (da) |
| ES (1) | ES2056843T3 (da) |
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| HK (1) | HK148195A (da) |
| IE (1) | IE59998B1 (da) |
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| CA2910191C (en) | 2004-03-05 | 2022-03-08 | The Trustees Of The Univeristy Of Pennsylvania | The use of mtp inhibitors for treating disorders or diseases associated with hyperlipidemia and hypercholesterolemia while minimizing side effects |
| WO2008045564A2 (en) * | 2006-10-12 | 2008-04-17 | Epix Delaware, Inc. | Carboxamide compounds and their use as antagonists of the chemokine ccr2 receptor |
| BRPI0820701A2 (pt) | 2007-12-11 | 2015-06-16 | Cytopathfinder Inc | Composto de carboxamida e seu uso como agonistas do receptor de quimiocina |
| EP3025727A1 (en) | 2008-10-02 | 2016-06-01 | The J. David Gladstone Institutes | Methods of treating liver disease |
| CA3186856A1 (en) | 2020-07-29 | 2022-02-03 | Ruth NALLEN | Lomitapide for use in methods of treating hyperlipidemia and hypercholesterolemia in pediatric patients |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL238088A (da) * | 1958-04-14 | |||
| BE620639A (da) * | 1961-07-25 | |||
| SE353319B (da) * | 1964-08-15 | 1973-01-29 | Sumitomo Chemical Co | |
| DE1618959C3 (de) * | 1967-10-04 | 1978-12-14 | Sumitomo Chemical Co., Ltd., Osaka (Japan) | Fettsäureamide und Verfahren zu ihrer Herstellung |
| DE2830351A1 (de) * | 1978-07-11 | 1980-01-24 | Consortium Elektrochem Ind | Acylanilide |
| GR69291B (da) * | 1979-06-25 | 1982-05-13 | May & Baker Ltd | |
| CH649078A5 (de) * | 1980-01-25 | 1985-04-30 | Reanal Finomvegyszergyar | Verfahren zur herstellung von n-mono- oder disubstituierten n-aryl-harnstoff-derivaten. |
| NZ216253A (en) * | 1985-05-27 | 1989-07-27 | Mitsui Toatsu Chemicals | N-(3-chloro-4-isopropylphenyl)-carboxamide derivatives and herbicidal compositions |
| MA20552A1 (fr) * | 1985-10-11 | 1986-07-01 | Pan Medica Sa | Alkylacarboxamides de pyridylalkylamines,leurs preparations et leurs utilisations |
-
1987
- 1987-02-24 US US07/017,960 patent/US4716175A/en not_active Expired - Lifetime
-
1988
- 1988-01-26 IE IE20488A patent/IE59998B1/en not_active IP Right Cessation
- 1988-01-27 CA CA000557467A patent/CA1336913C/en not_active Expired - Fee Related
- 1988-01-28 ZA ZA88604A patent/ZA88604B/xx unknown
- 1988-02-04 NZ NZ223410A patent/NZ223410A/xx unknown
- 1988-02-19 FI FI880796A patent/FI89593C/fi not_active IP Right Cessation
- 1988-02-23 AT AT88102644T patent/ATE89814T1/de not_active IP Right Cessation
- 1988-02-23 ES ES88102644T patent/ES2056843T3/es not_active Expired - Lifetime
- 1988-02-23 DK DK094188A patent/DK165406C/da not_active IP Right Cessation
- 1988-02-23 JP JP63038777A patent/JPH07121895B2/ja not_active Expired - Lifetime
- 1988-02-23 DE DE8888102644T patent/DE3881249T2/de not_active Expired - Fee Related
- 1988-02-23 NO NO880774A patent/NO174043C/no unknown
- 1988-02-23 PT PT86811A patent/PT86811B/pt not_active IP Right Cessation
- 1988-02-23 EP EP88102644A patent/EP0283742B1/en not_active Expired - Lifetime
- 1988-02-24 KR KR1019880001910A patent/KR880009933A/ko not_active Abandoned
-
1992
- 1992-06-23 MX MX9203139A patent/MX9203139A/es unknown
-
1995
- 1995-09-14 HK HK148195A patent/HK148195A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA1336913C (en) | 1995-09-05 |
| NZ223410A (en) | 1989-11-28 |
| ATE89814T1 (de) | 1993-06-15 |
| DK165406C (da) | 1993-04-13 |
| EP0283742A2 (en) | 1988-09-28 |
| HK148195A (en) | 1995-09-22 |
| JPS63253060A (ja) | 1988-10-20 |
| DK94188D0 (da) | 1988-02-23 |
| NO174043C (no) | 1994-03-09 |
| US4716175A (en) | 1987-12-29 |
| ES2056843T3 (es) | 1994-10-16 |
| IE880204L (en) | 1988-08-24 |
| AU610558B2 (en) | 1991-05-23 |
| EP0283742A3 (en) | 1989-07-26 |
| DE3881249D1 (en) | 1993-07-01 |
| DK94188A (da) | 1988-08-25 |
| NO880774D0 (no) | 1988-02-23 |
| FI89593B (fi) | 1993-07-15 |
| PT86811B (pt) | 1992-05-29 |
| NO880774L (no) | 1988-08-25 |
| JPH07121895B2 (ja) | 1995-12-25 |
| EP0283742B1 (en) | 1993-05-26 |
| US4716175B1 (da) | 1993-06-22 |
| FI880796A0 (fi) | 1988-02-19 |
| AU1135488A (en) | 1988-08-25 |
| FI89593C (fi) | 1993-10-25 |
| MX9203139A (es) | 1992-07-01 |
| PT86811A (pt) | 1988-03-01 |
| DE3881249T2 (de) | 1993-09-16 |
| ZA88604B (en) | 1989-09-27 |
| IE59998B1 (en) | 1994-05-18 |
| FI880796A7 (fi) | 1988-08-25 |
| NO174043B (no) | 1993-11-29 |
| KR880009933A (ko) | 1988-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |