DK156717B - Analogifremgangsmaade til fremstilling af indomethacinderivater - Google Patents
Analogifremgangsmaade til fremstilling af indomethacinderivater Download PDFInfo
- Publication number
- DK156717B DK156717B DK182081AA DK182081A DK156717B DK 156717 B DK156717 B DK 156717B DK 182081A A DK182081A A DK 182081AA DK 182081 A DK182081 A DK 182081A DK 156717 B DK156717 B DK 156717B
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- DK
- Denmark
- Prior art keywords
- acid
- indomethacin
- topical
- preparation
- formula
- Prior art date
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 229950000244 sulfanilic acid Drugs 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000011200 topical administration Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229960002622 triacetin Drugs 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/12—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms
- C07D295/125—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms with the ring nitrogen atoms and the substituent nitrogen atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
- C07D295/13—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms with the ring nitrogen atoms and the substituent nitrogen atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/04—Centrally acting analgesics, e.g. opioids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/10—Indoles; Hydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
- C07D209/18—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D209/26—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals with an acyl radical attached to the ring nitrogen atom
- C07D209/28—1-(4-Chlorobenzoyl)-2-methyl-indolyl-3-acetic acid, substituted in position 5 by an oxygen or nitrogen atom; Esters thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pain & Pain Management (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Rheumatology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Indole Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Description
DK 156717 B
Den foreliggende opfindelse angâr en analogifremgangs-mâde til fremstilling af hidtil ukendte og nyttige de-rivater af indomethacin. De omhandlede forbindelser virker som prodrugs og er karakteriseret ved at være 5 (1) lettere biotilgængelige, (2) mindre irriterende for topiske og gastriske slimhinder og (3) raere perméable gennem topiske hinder, sâsom den optalmiske mem-bran, huden og lignende, nâr de administreres oralt eller topisk til varmblodede dyr, end det er tilfældet 10 for indomethacin.
I den foreliggende beskrivelse anvendes udtrykket "pro-drug" for et dérivât af indomethacin, der nâr det administreres til et varmblodet dyr, spaltes pâ en sâdan mâde, at det frigiver indomethacin pâ det sted, hvor 15 det skal anvendes eller udvise aktivitet. Den enzyma- tiske og/eller kemiske hydrolytiske spaltning af de omhandlede forbindelser sker pâ en sâdan mâde, at indomethacin frigives, mens resten af spaltningsproduk-tet er ikke-toxisk og metaboliseres pâ en sâdan mâde, 20 at der ikke dannes toxiske metabolismeprodukter.
Sædvanligvis absorberes ikke-ioniserede former af et lægemiddel mere effektivt end tilsvarende ioniske former. Carboxylsyregruppen i indomethacin ioniseres i betragtelig grad ved det fysiologiske pH. Resultatet 25 er, at indomethacin i ringe grad absorberes gennem li-pid/vand-membranbarrierer og virker irriterende.
Dansk patentskrift nr. 135.347 angâr en analogifrem-gangsmâde til fremstilling af et N-substitueret amid af en 3-indolyleddikesyreforbindelse. US-patentskrift 30 nr. 3 624 103 angâr hidtil ukendte 2-methyl-5-indolace-tohydroxaminsyreforbindelser med antiinflammetorisk, antipyretisk og analgetisk virkning. Dansk patentskrift nr. 124 951 angâr en fremgangsmâde til fremstilling
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2 af forskellige 5-[l-aroyl-3-indolylmethy1]-tetrazolfor-bindelser. Der er sâledes udelukkende taie om 3-indol-ylderivater, der som sâdanne er nyttige antiinflamma-toriske, antipyretiske og analgetiske midler, og ikke 5 prodrugs. Den foreliggende opfindelse angâr derimod fremstillingen af prodrugs, der efter indgift spaltes i et kendt lægemiddel og en uskadelig rest. Disse hid-til ukendte forbindelser har storre biotilgængelighed og er mindre irriterende end indomethacin. Opfindelsen 10 angâr sâledes en analogifremgangsmâde til fremstilling af indomethacin-hydroxaminsyrederivater med den i kra-vet angivne almene formel I, hvor og er ens eller forskellige og hver især betegner alkyl med 1-20 car-bonatomer, eller R^ og R^ danner sammen med det nabo-15 stillede nitrogenatom en mættet 5- eller 6-leddet hete- rocyclisk ring, der eventuelt indeholder et yderligere heteroatom, og R^ betyder hydrogen eller alkyl med 1-20 carbonatomer, eller et farmaceutisk acceptabelt syre-additionssalt deraf, hvilken fremgangsmâde er ejendom-20 melig ved, at man omsætter syrechloridet af indometha cin med den i kravet angivne formel II med hydroxylamin efterfulgt af behandling med et aldehyd med den i kra-vet angivne formel III og en sekundær amin med den i kravet angivne formel IV, hvor R^, R^ og R^ har den 25 tidligere angivne betydning, hvorefter den dannede for- bindelse om ensket omdannes til et farmaceutisk acceptabelt syreadditionssalt deraf.
De sâledes fremstillede derivater af det ikke-steroide antiinflammatoriske lægemiddel indomethacin ioniseres 30 ved fysiologisk pH og er rimeligt stabilt, men hydro- lyseres let in vivo til opnâelse af indomethacin og et eller flere ikke-toxiske biprodukter, der let me-taboliseres.
De fremstillede forbindelser udviser oral og topisk
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3 antiinf lammatorisk ak-t^ivitet, nâr de administreres til \ ) varmblodede dyr. De er karakteriseret som værende let-tere biotilgængelige, mindre irriterende for de topiske og gastriske slimhinder og mere permeable gennem topi-5 ske hinder eller membraner, f.eks. den optalmiske mem- bran eller huden, end tilfældet er for det tilswarende lægemiddel, hv/orfra de er afledt, indomethacin. Den lettere biotilgængelighed giver sig udtryk i en 1avéré ED^o — værd± end for indomethacin.
10 Efter administrering spaltes forbindelserne pâ en sâdan mâde, at indomethacin frigores pâ det terapeutiske sted eller de terapeutiske steder.
Udtrykket "ikke-toxiske farmaceutisk acceptable syread-ditionssalte" som anvendt heri omfatter sædvanligvis 15 de ikke-toxiske syreadditionssalte af udvalgte forbin- delser med formlen I, der dannes med ikke-toxiske uorga-niske eller organiske syrer. Saltene omfatter f.eks. de salte, der er afledt fra uorganiske syrer, sâsom saltsyre, hydrogenbromidsyre, samt de salte, der er 20 fremstillet ud fra organiske syrer, sâsom eddikesyre, propionsyre, ravsyre, glycolsyre, stearinsyre, mælkesy-re, malonsyre, vinsyre, citronsyre, ascorbinsyre, pam-syre, maleinsyre, hydroxymaleinsyre, phenyleddikesyre, glutaminsyre, benzoesyre, salicylsyre, sulfanilsyre, 25 fumarsyre, methansulfonsyre og toluensulfonsyre.
De hidtil ukendte produgs med formlen I fremstilles ved farst at omsætte syrechloridet af indomethacin med den i kravet angivne formel II med hydroxylamin, der hensigtsmæssigt anvendes i form af sit hydrochlorid 30 ^ΝΟΗ'ΗΟΙ. Reaktionen udferes hensigtsmæssigt i nærværelse af en passende base, f.eks. kaliumcarbonat, i et passende organisk oplasningsmiddel eller en oplosningsmiddelblan-ding, f.eks. diethylether/tetrahydrofuran. Det resuite-
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4 rende mellemprodukt omsætt^ derpâ med formaldehyd el-ler et andet aldehyd af typen R^CHO, hvori R^ har den tidligere angivne betydning, og en sekundær amin med formlen iv 5 hvori R^, og -NRj^ er som defineret i det foregéen- de, til opnâelse af det enskede prodrug med formlen I. Omsætningen udfares i et passende organisk oplos-ningsmiddel, sâsom tetrahydrofuran, og formaldehydet kan hensigtsmæssigt indfares i reaktionsblandingen i 10 form af formalin (en oplosning af ca. 37 vægt-% for- maldehydgas i vand, sædvanligvis tilsat 10 - 15¾ metha-nol for at undgâ polymérisation).
Syrechloridudgangsmaterialet med formlen II fremstilles pâ kendt mâde ud fra indomethacin, typisk ved behandling 15 med thionylchlorid.
Fremgangsmâden ifalge opfindelsen forklares nærmere ved hjælp af de efterfalgende eksempler.
Fremstillinq af udqangsmateriale; EKSEMPEL 1 20 Fremstilling af syrechloridet af 1—(4'-chlorbenzoyl )- 5-methoxy-2-methyl-3-indolyleddikesyre, dvs- indometha-cin-syrechlorid_
Til 9,00 g (0,0757 mol) thionylchlorid i 400 ml di-
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5 chlormethan blev der sat 5,55 g (0,076 mol) dimethyl-formamid i 100 ml dichlormethan. Efter 10 minutters forlob ved stuetemperatur blev ovennævnte oplosning omsat med en suspension af dichlormethan (100 ml) 5 indeholdende 25,7 g (0,072 mol) indomethacin. Den resulterende svagt orangefarvede oplesning blev straks koncentreret i vacuum til opnâelse af en lysegul rest, som blev tritureret med 500 ml ether natten over.
Bundfaldet blev derpâ fjernet ved filtrering og torret 10 til opnâelse af 16,7 g (smp. 124 - 126° C, 61 %'s udbytte) af det onskede indomethacin-syrechlorid: IR (KBr) 1790 og 1675 cm-1 (s) (C=0); NMR (CDCl3)i 7,60 (AB kvartet, 4, J = 9 HZ, = 11 Hz, aromatisk H), 7,0 - 6,55 (m, 3, aromatisk H), 15 4,17 (s, 2,ÇH2C0C1) 3,83 (s, 3, 0-ÇH3) og 2,41 (s, 3,ÇH3- C=C).
Analyse for C^^H^^Cl^NOj:
Beregnet: C 60,65, H 4,02, N 3,72.
Fundet: C 60,59, H 4,08, N 3,50.
20 EKSEMPEL 2
Fremstilling af A.-[l-(4'-chlorbenzoyl)-5-methoxy-2-methylindol-3-yllacetohydroxaminsyre, dvs. indometha-cin-hydroxaminsyre____
Hydroxylamin-hydrochlorid (7,47 g, 0,107 mol) og kalium-25 carbonat (14,84 g, 0,107 mol) blev oplast i 20 ml H^O. Der blev tilsat 1000 ml ethylether, og den resulterende suspension blev omrort i 10 minutter. Derpâ blev der tilsat en suspension af indomethacin-syrechlorid (40,46 g, 0,107 mol) i 600 ml tetrahydrofuran, 6
DK 156717 B
og reaktionsblandingen blev omrert natten ower. Suspen-sionen blev derpâ filtreret, og resten blev vasket to gange med ethylether, suspenderet i 600 ml kogende tetrahydrofuran og filtreret varmt. Filtratet blev 5 koncentreret til 150 ml og fik lov at udkrystallisere ved stuetemperatur natten over. Krystallerne blev fjernet ved filtrering og vasket to gange med ethylether til opnâelse af 18,72 g (smp. 147 - 150° C, 47 %'s udbytte) af let gule fibrose krystaller, som 10 viste sig at være det rene produkt: NMR (DMS0-d6)£Î 10,65 (s, 1, Ν0Η ), 8,8 (bm, 1,-NHGH), 7,67 (s, 4, -C6H4C1), 7,22 - 6,6 (m, 3, -C^OCHj), 3,80 (s, -0CH3), 3,42 (s, 2, 0=CCH2), 2,28 (s, 3, 15 CCH3), IR (KBr) 3300 - 3150 cm-1 (b) (Ν0-Η), 1650, 1630 cm'1 (N-C = 0 ).
20 Analyse for ^29^17^^2^4:
Beregnet: C 61,21, H 4,60, N 7,52 Fundet: C 61,32, H 4,80, N 7,00.
25 Fremstillinq af slutprodukter : EKSEMPEL 3
Fremstilling af ck-[l-(41-chlorbenzoyl)-5-methoxy-2-30 methylindol-3-yl2-N-(morpholinomethyl)acetohydrox- aminsyre_
Formalin (0,82 g) blev blandet med morpholin (0,71 g, 0,0082 mol) i 90 ml tetrahydrofuran, hvorpâ indometha-35 cin-hydroxaminsyre (3,04 g, 0,0082 mol) blev tilsat.
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7
Den resulterende suspension blev opvarmet i et varmt vandbad, indtil al fast stof var opl0st, h\/orpâ reak-tionsbeholderen blev tilproppet, og oplasningen fik lov at afkole natten over. I lobet af dette tidsrum 5 dannedes en lille smule krystaller. Oplesningen blev fortyndet til 250 ml med cyclohexan og fik lov at henstâ i 2 timer. De dannede krystaller blev fjernet ved filtrering og vasket to gange med cyclohexan, hvorefter de blev tarret i vakuum (60° C i 8 timer) 10 til opnâelse af 2,01 g (smp. 179 - 180° C, 68 %'s udbytte) af et hvidt pulver, som var rent produkt: NMR (DSM0-d6) J 7,70 (s, 4, -C^Cl), 7,10 - 6,70 (m, 3, -0C6H3), 4,35 (s, 2, NCH^N), 3,84 (s, 2, -COCJ^-), 3,77 (s, 3, -0CH3), 3,26 (m, 4, 0 ( CH. 2 ) 2 - ), 2,6 (m, 15 4, N(CH2-)2-), 2,24 (s, 3, C-CH3); IR ( KBr ), 3510 cm-1 (bw) (-Ν0-Η), 2900 cm"1 (C-H), 1660 cm-1 (s) (NC=0), 1600 cm"1 (s) (H0NC=0).
Analyse for ^2^Η2^εΐΝ303:
Beregnet: C 61,21, H 5,35, N 8,92 20 Fundet: C 61,44, H 5,68, N 8,50 EKSEMPEL 4
Fremstilling af«|<*-[l-(4,-chlorbenzoyl)-5-methoxy-2-methylindol-3-yl]-N-J(4-methylpiperazin-l-yl)methyl]-acetohydroxamin ________ 25 Denne fremstilling blev udfort analogt med den i eksempel 3 beskrevne procedure under anvendelse 3,31 g (0,089 mol) indomethacin-hydroxaminsyre, 0,89 g formalin og 0,89 g (0,0089 mol) N-methylpiperazin i 90 ml tetrahydrofuran. Udkrystallisering af produktet 8
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blev udf0rt ved koncentrering af reaktionsblandingen til 30 ml efterfulgt af fortynding af denne oplosning til 100 ml med cyclohexan. Den resulterende uklare opl0sning fik lov at udkrystallisere i 3 dage, hvorpâ 5 krystallerne blev fjernet ved filtrering og vasket to gange med en blanding af hexaner til opnâelse af 3,53 g (82 %'s udbytte, smp. 143 - 145° C) af et off-îAihite pulveragtigt krystallinsk produkt: 10 NMR (DMSO-dg)cf 7,66 (s, 4, -C^Cl), 7,10 - 6,60 (m, 3, -0C6H3-), 4,33 (s, 2, -NCH2N), 3,48 (s, 2, C0CH2-), 3,41 (s, 3, -0CH3), 2,7 - 2,0 (m, 8, -N(CH2CH2)2N-), 2,19 (s, 3,-NCHj), 2,16 (s, 3, C-CHj), 15 IR (KBr ) 2800 - 3000 cm-1 (m) (C-H), 1665 cm-1 (s) (NC=Q), 1600 cm-1 (s) (H0NC=0).
Analyse for C25^29^N4^4: 20 Beregnet: C 61,91, H 6,03, N 11,56 Fundet: C 62,07, H 6,00, N 11,21 EKSEMPEL 5 25 Fremstilling af„4 - £l-(4'-chlorbenzoyl)-5-methoxy-2-methylindol-3-ylJ-N(N',N'-diethylaminomethyl)-aceto-hydroxaminsyre________
Metoden og udkrystalliseringen blev udfort analogt 30 med de i eksempel 3 og 4 i det foregâende angivne procedurer under anvendelse af 3,15 g (0,0085 mol) indomethacin-hydroxaminsyre, 0,85 g formalin og 0,62 g (0,0085 mol) diethylamin i 70 ml tetrahydrofuran.
Efter 3 dages udkrystallisering blev det krystallinske 35 produkt fjernet ved filtrering og vasket 2 gange med en hexanblanding til opnâelse af 3,08 g (79 %’s
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9 udbytte, smp. 134 - 137° C) hvidt pulver: NMR (CDCl^ 8,03 (bs, 1, NOH), 7,7 - 6,7 (m, 7, aromatisk ), 4,42 (s, 2, NCH^N), 3,85 (s, 2, -COCH^)» 5 3,82 (s, 3, -0CH3), 2,65 (q, 4, J = 8 Hz, NCH2), 2,35 (s, 3, C-CH3), 1,04 (t, 6, J = 8 HZ, NCH2CH3); IR (KBr) 3150 cm-1 (w) (NO-H), 2800 - 3000 cm-1 (ni) (C-H), 1667 cm"1 (s) 10 (NC=0), 1600 cm"1 (s) (H0NC=0).
Analyse for ^24^28^^3^4:
Beregnet: C 62,94, H 6,16, N 9,18 15 Fundet: C 62,51, H 6,18, N 8,90
Den antiinflammatoriske virkning af prodrugs med formlen I er indlysende ud fra resultater pâ forsag pâ museare (C. G. Van A r m a n , Clin. Pharm. Ther., 16, 900 (1974)) 20 opnâet, nâr der som pr0veforbindelse blev anveradt repræsentative forbindelser af de omhandlede. Betaljerne ved museareforseget er som felger:
Forsogsdyret var han ddY stamme mus (pâ hver 20 - 25 25 g). Oplasninger af praveforbindelsen i acetone indehol- dende 2 % crotonolie (dvs. en oplasning indeholdende 98 dele acetone til 2 dele crotonolie) blev fremstillet for forskellige koncentrationer af praveforbindelsen.
Derpâ blev forsagsdyret bedavet, og 0,05 ml af den 30 valgte praveoplasning blev anvendt i 0,025 ml aliquoter, en til forsiden og en til bagsiden af det hajre are af hver mus. Tre timer efter indgift blev muserte slâet ihjel ved etherintialation, og begge 0rer blev fjernet fra hver mus. Derpâ blev der udtaget et cirkeludsnit 35 med en diameter pâ 8 mm fra hvert are under anvendelse af et læderstempel. Grupper pâ 15 mus blev behandlet 10
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ved hver dosis af hver testforbindelse. Kontrolgrup-perne bestod af 30 mus. I hver kontrolgruppe blev det hajre are behandlet med crotonolie/acetone-oplas-ningen som beskrevet i det foregâende, men uden indhold 5 af praveforbindelsen, mens det venstre are af hver kontrolmus var ubehandlet. Vægtforagelsen forârsaget af irritationen blev bestemt ved at substrahere vægten af det ubehandlede venstre are-afsnit fra vægten af det hajre are-afsnit. Lægemiddelvirkninger udtrykt 10 som procentvis inhibering blev bestemt ved hver valgt koncentration (molaritet) for hver praveforbindelse efter falgende ligning:
Middelvægtforagelse kontrol- % inhibering = middelvægtforagelse for behandlet ^gg 15 middelvægtforagelse kontrol
Indomethacin, indomethacin-hydroxaminsyre og forbindel- serne ifalge eksempel 3, 4 og 5 blev afpravet ved den i det foregâende beskrevne museare-prave.
dvs. den dosis, som var effektiv til reduktion af 20 vægtforagelsen af aret med 50 %, blev opnâet for hver praveforbindelse fra lineær regressionsanalyse for -2 -2 -2 data opnâet ved 2 x 10 , 4 x 10 og 8 x 10 M doser, dvs. den procentvise inhibering som beregnet i det foregâende blev aftegnet mod koncentrationen, og det 25 punkt, ved hvilket inhibering fra 50 %, blev betragtet som EDijq for en given forbindelse. Resultaterne var som falger: 11
DK 156717 B
Pr0veforbindelse ED^q(M)
Indomethacin 0,061
Indomethacin-hydroxaminsyre 0,096 at-[l-(4'-chlorbenzoyl)-5-methoxy-5 2-methyl-indol-3-yl]-N-morpho- linomethyl)-acetohydroxaminsyre 0,054 a-[l-(4'-chlorbenzoyl)-5-methoxy- 2-methyl-indol-3-yl]-N-/(4-methylpiperazin-l-yl)methyl]-10 acetohydroxaminsyre 0,027 α[1-(41-chlorbenzoyl)-5-methoxy- 2-methyl-indol-3-yl]— N — (N’,N'-diethylaminomethyl)-acetohydroxaminsyre 0,041 15
De ved fremgangsmâden ifolge opfindelsen fremstil-lede forbindelser administreres konventionelt til varmblodede dyr ved konventionel oral eller topisk administrering, mest hensigtsmæssigt ved at kombinere 20 den valgte forbimielse med et egnet ikke-toxisk farma-ceutisk acceptabelt oralt eller topisk inert bærerma-teriale. Sâdanne b.ærermaterialer er velkendte for fag-manden pâ omrâdet til oral og topisk farmaceutisk formulering. For fagmanden pâ omrâdet kan der ihenvises 25 til en artikel "REiMINGTON ' S PHARMACEUTICAL SCIENCES" (14. udgave) 1970, I et typisk præparat til oral administrering, f.eks. en tablet eller kapsel, kan en vilkârlig af de o-mihandlede forbindelser kombimeres i en antiinflammatorisk effektiv mængde med en oral 30 ikke-toxisk farmaceutisk acceptabel inert bærer, sâsom lactose, stivelse (farmaceutisk kvalitet), dicalcium-phosphat, calciumsulfat, kaolin, mannitol og pulver-formigt sukker. Desuden kan der efter behov ogsâ være inkorporeret egnede bindemidler, smoremidler, sonder-35 delingsmidler og farvestoffer. Typiske bindemidler 12
DK 156717B
omfatter stivelse, gélatine, sukkerarter, sâsom saccharose, mêlasse og lactose, naturligt og syntetisk gummi, sâsom acacia, natriumalginat, ekstrakt af irsk mos, carboxymethylcellulose, methylcellulose, poly-.5 vinylpyrrolidon, polyethylenglycol, ethylcellulose og voksarter. Typiske smoremidler til anvendelse i disse doseringsformer kan omfatte borsyre, natriumben-zoat, natriumacetat, natriumchlorid, leucin og polyethylenglycol. Egnede sonderdelingsmidler kan omfatte 10 stivelse, methylcellulose, agar, bentonit, cellulose, træprodukter, algininsyre, guargummi, citruspulp, carboxymethylcellulose og natriumlaurylsulfat. 0m ensket kan der inkorporeres et konventionelt farma-ceutisk acceptabelt farvestof i dosisenhedsformen, 15 dvs. et vilkârligt af de standardiserede FD & C farve-stoffer.
Pâ lignende mâde kombineres en vilkârlig af de om-handlede forbindelser i et typisk præparat til topisk anvendelse med et topisk hjælpemiddel, sâsom triacetin, 20 sâ at den aktive bestanddel er til stede i en anti- inflammatorisk effektiv mængde. Præparatet pâferes ganske enkelt topisk pâ det betændte omrâde, hvorved den terapeutisk aktive forbindelse dermalt absorberes og spaltes til frigorelse af moderdelen pâ inflamma-25 tionsstedet.
Det terapeutiske dosisomrâde for de omhandlede forbindelser varierer selvsagt med sterrelsen og behovet for patienten. Generelt vil felgende doseringsret-ningslinier være tilstrækkelige. Pâ oral basis vil 30 den terapeutiske dosis, der er pâkrævet for en for bindelse, generelt, pâ molær basis, være mindre end for moderdelen, dvs. indomethacin. Pâ topisk basis vil pâforing af en forbindelse (i et hensigtsmæssigt topisk bærermateriale) i en koncentration pâ 0,01 % 35 til 2,5 % pâ betændelsesstedet være tilstrækkeligt.
Claims (5)
- 0 OH -,CH9 - C- N-CH-N^ I
- 3. IΠ 2 1 L a S 2
- 10 CH3 C = 0 O
- 15 Cl hvor R^ og R2 er ens eller forskellige og hver især betegner alkyl med 1-20 carbonatomer, eller ÎR^ og R2 danner sammen med det nabostillede nitr ogenættom en mættet 5- eller 6-leddet heterocyclisk ring, der 20 eventuelt indeholder et yderligere heteroatom, og R3 betyder hydrogen eller alkyl med 1-20 carfoonatomer, eller et farmaceutisk acceptabelt syreadditionssalt deraf, kendetegnet ved, at man omsætter syrechloridet af indomethacin med formlen 25 ch3o fV -j«CH2C0Cl II CO
- 30 J 0 Cl 35 med hydroxylamin e-fterfulgt af behandling med et alde-hyd med formlen DK 156717B -14 R3CH0 III og en sekundær amin med formlen 5 HNCT IV hvor R, , R? og R3 har den ovennævnte betydning, hvor-1 Π 1 & 2 efter den dannede forbindelse om ansket omdannes til et farmaceutisk acceptabelt syreadditionssalt deraf.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14352080A | 1980-04-24 | 1980-04-24 | |
| US14352080 | 1980-04-24 |
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| Publication Number | Publication Date |
|---|---|
| DK182081A DK182081A (da) | 1981-10-25 |
| DK156717B true DK156717B (da) | 1989-09-25 |
| DK156717C DK156717C (da) | 1990-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK182081A DK156717C (da) | 1980-04-24 | 1981-04-23 | Analogifremgangsmaade til fremstilling af indomethacinderivater |
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| Country | Link |
|---|---|
| EP (1) | EP0039051B1 (da) |
| JP (1) | JPS56167643A (da) |
| AT (1) | ATE14423T1 (da) |
| DE (1) | DE3171467D1 (da) |
| DK (1) | DK156717C (da) |
| ES (1) | ES501573A0 (da) |
| GR (1) | GR74496B (da) |
| IE (1) | IE53001B1 (da) |
| PT (1) | PT72878B (da) |
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|---|---|---|---|---|
| US3624103A (en) * | 1968-05-21 | 1971-11-30 | Abc Ist Biolog Chem Spa | 3-indoleacetohydroxamic acids |
| DK124951B (da) * | 1965-07-01 | 1972-12-11 | Bristol Myers Co | Fremgangsmåde til fremstilling af 5-[1-aroyl-3-indolylmethyl]-tetrazolforbindelser eller salte deraf. |
| DK135347B (da) * | 1963-04-30 | 1977-04-12 | Merck & Co Inc | Analogifremgangsmåde til fremstilling af N-substituerede amider af indolyleddikesyreforbindelser. |
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|---|---|---|---|---|
| GB1081993A (en) * | 1963-04-17 | 1967-09-06 | Ici Ltd | Difluoramino compounds |
| DK143104C (da) * | 1970-09-09 | 1981-11-09 | Ciba Geigy Ag | Analogifremgangsmaade til fremstilling af anilinophenylacetamidderivater eller salte deraf |
| US4206220A (en) * | 1978-07-13 | 1980-06-03 | Interx Research Corporation | Prodrugs for the improved delivery of non-steroidal anti-inflammatory agents |
-
1981
- 1981-04-16 PT PT72878A patent/PT72878B/pt not_active IP Right Cessation
- 1981-04-21 GR GR64756A patent/GR74496B/el unknown
- 1981-04-22 IE IE899/81A patent/IE53001B1/en not_active IP Right Cessation
- 1981-04-23 JP JP6073181A patent/JPS56167643A/ja active Granted
- 1981-04-23 DE DE8181103066T patent/DE3171467D1/de not_active Expired
- 1981-04-23 DK DK182081A patent/DK156717C/da not_active IP Right Cessation
- 1981-04-23 EP EP81103066A patent/EP0039051B1/en not_active Expired
- 1981-04-23 ES ES501573A patent/ES501573A0/es active Granted
- 1981-04-23 AT AT81103066T patent/ATE14423T1/de not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK135347B (da) * | 1963-04-30 | 1977-04-12 | Merck & Co Inc | Analogifremgangsmåde til fremstilling af N-substituerede amider af indolyleddikesyreforbindelser. |
| DK124951B (da) * | 1965-07-01 | 1972-12-11 | Bristol Myers Co | Fremgangsmåde til fremstilling af 5-[1-aroyl-3-indolylmethyl]-tetrazolforbindelser eller salte deraf. |
| US3624103A (en) * | 1968-05-21 | 1971-11-30 | Abc Ist Biolog Chem Spa | 3-indoleacetohydroxamic acids |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0039051A3 (en) | 1982-05-26 |
| ES8207508A1 (es) | 1982-09-16 |
| JPH04982B2 (da) | 1992-01-09 |
| ATE14423T1 (de) | 1985-08-15 |
| DE3171467D1 (en) | 1985-08-29 |
| PT72878B (en) | 1983-03-29 |
| EP0039051B1 (en) | 1985-07-24 |
| IE53001B1 (en) | 1988-05-11 |
| GR74496B (da) | 1984-06-28 |
| PT72878A (en) | 1981-05-01 |
| IE810899L (en) | 1981-10-24 |
| JPS56167643A (en) | 1981-12-23 |
| EP0039051A2 (en) | 1981-11-04 |
| DK182081A (da) | 1981-10-25 |
| DK156717C (da) | 1990-02-19 |
| ES501573A0 (es) | 1982-09-16 |
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