DK150510B - Analogifremgangsmaade til fremstilling af substituerede 2-(2-benzimidazolyl)-pyridiner eller terapeutisk acceptable salte deraf - Google Patents
Analogifremgangsmaade til fremstilling af substituerede 2-(2-benzimidazolyl)-pyridiner eller terapeutisk acceptable salte deraf Download PDFInfo
- Publication number
- DK150510B DK150510B DK151179AA DK151179A DK150510B DK 150510 B DK150510 B DK 150510B DK 151179A A DK151179A A DK 151179AA DK 151179 A DK151179 A DK 151179A DK 150510 B DK150510 B DK 150510B
- Authority
- DK
- Denmark
- Prior art keywords
- methyl
- benzimidazole
- methoxy
- pyridylmethylsulfinyl
- carbomethoxy
- Prior art date
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- -1 2-BENZIMIDAZOLYL Chemical class 0.000 title claims description 29
- 238000000034 method Methods 0.000 title claims description 18
- 150000003839 salts Chemical class 0.000 title claims description 17
- 230000001225 therapeutic effect Effects 0.000 title description 2
- RQMWVVBHJMUJNZ-UHFFFAOYSA-N 4-chloropyridin-2-amine Chemical compound NC1=CC(Cl)=CC=N1 RQMWVVBHJMUJNZ-UHFFFAOYSA-N 0.000 title 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 104
- 150000001875 compounds Chemical class 0.000 claims description 64
- 229910052739 hydrogen Inorganic materials 0.000 claims description 34
- 239000001257 hydrogen Substances 0.000 claims description 34
- 150000002431 hydrogen Chemical class 0.000 claims description 26
- 239000002253 acid Substances 0.000 claims description 18
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 15
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 13
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- 229910052736 halogen Inorganic materials 0.000 claims description 9
- 150000002367 halogens Chemical class 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
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- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims description 3
- YNFBMDWHEHETJW-UHFFFAOYSA-N 2-pyridin-2-yl-1h-benzimidazole Chemical class N1=CC=CC=C1C1=NC2=CC=CC=C2N1 YNFBMDWHEHETJW-UHFFFAOYSA-N 0.000 claims description 2
- SUBDBMMJDZJVOS-UHFFFAOYSA-N 5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole Chemical compound N=1C2=CC(OC)=CC=C2NC=1S(=O)CC1=NC=C(C)C(OC)=C1C SUBDBMMJDZJVOS-UHFFFAOYSA-N 0.000 claims description 2
- 229960000381 omeprazole Drugs 0.000 claims description 2
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- NLFBCYMMUAKCPC-KQQUZDAGSA-N ethyl (e)-3-[3-amino-2-cyano-1-[(e)-3-ethoxy-3-oxoprop-1-enyl]sulfanyl-3-oxoprop-1-enyl]sulfanylprop-2-enoate Chemical compound CCOC(=O)\C=C\SC(=C(C#N)C(N)=O)S\C=C\C(=O)OCC NLFBCYMMUAKCPC-KQQUZDAGSA-N 0.000 claims 2
- 125000002861 (C1-C4) alkanoyl group Chemical group 0.000 claims 1
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- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 description 30
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- 125000005111 carboxyalkoxy group Chemical group 0.000 description 1
- 125000004181 carboxyalkyl group Chemical group 0.000 description 1
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical compound [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 229940106681 chloroacetic acid Drugs 0.000 description 1
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 125000005117 dialkylcarbamoyl group Chemical group 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- WFPZPJSADLPSON-UHFFFAOYSA-N dinitrogen tetraoxide Chemical compound [O-][N+](=O)[N+]([O-])=O WFPZPJSADLPSON-UHFFFAOYSA-N 0.000 description 1
- CCIVGXIOQKPBKL-UHFFFAOYSA-M ethanesulfonate Chemical compound CCS([O-])(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-M 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 210000004211 gastric acid Anatomy 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- JYJVVHFRSFVEJM-UHFFFAOYSA-N iodosobenzene Chemical compound O=IC1=CC=CC=C1 JYJVVHFRSFVEJM-UHFFFAOYSA-N 0.000 description 1
- 238000005342 ion exchange Methods 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
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([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
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229940099690 malic acid Drugs 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 229930182817 methionine Natural products 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 125000002816 methylsulfanyl group Chemical group [H]C([H])([H])S[*] 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- WLJNZVDCPSBLRP-UHFFFAOYSA-N pamoic acid Chemical compound C1=CC=C2C(CC=3C4=CC=CC=C4C=C(C=3O)C(=O)O)=C(O)C(C(O)=O)=CC2=C1 WLJNZVDCPSBLRP-UHFFFAOYSA-N 0.000 description 1
- 208000011906 peptic ulcer disease Diseases 0.000 description 1
- 150000002976 peresters Chemical class 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical class OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 description 1
- JCBJVAJGLKENNC-UHFFFAOYSA-M potassium ethyl xanthate Chemical compound [K+].CCOC([S-])=S JCBJVAJGLKENNC-UHFFFAOYSA-M 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- SHNUBALDGXWUJI-UHFFFAOYSA-N pyridin-2-ylmethanol Chemical compound OCC1=CC=CC=N1 SHNUBALDGXWUJI-UHFFFAOYSA-N 0.000 description 1
- 125000004076 pyridyl group Chemical group 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
- 238000001953 recrystallisation Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- 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
- C07D401/12—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 linked by a chain containing hetero atoms as chain links
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/14—Prodigestives, e.g. acids, enzymes, appetite stimulants, antidyspeptics, tonics, antiflatulents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Nutrition Science (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
i 150510
Den foreliggende opfindelse angår en analogifremgangsmåde til fremstilling af de i krav l's indledning definerede, hidtil ukendte substituerede 2-(2-benzimidazolyl)-pyridiner eller terapeutisk acceptable salte deraf, hvilke forbindel-5 ser og salte har værdifulde egenskaber med hensyn til at påvirke mavesyresekretionen hos pattedyr, herunder mennesker. Fremgangsmåden ifølge opfindelsen er ejendommelig ved det i patentkravets kendetegnende del anførte.
Formålet med opfindelsen er at tilvejebringe en frem-10 gangsmåde til at fremstille sådanne forbindelser der påvirker mavesyresekretionen og som inhiberer exogent og endogent stimuleret mavesyresekretion. Disse forbindelser kan bruges til behandling af sygdommen peptisk mavesår.
Fra US patentskrift nr. 4.045.563 svarende til dansk 15 patentskrift nr. 140.840 kendes benzimidazolderivater med den almene formel b
20 s-r"Q
RC
& b 30 hvor R og R hver betegner hydrogen, alkyl, halogen, cyan, karboxy, karboxyalkyl, karboxyalkoxy, karboxyalkoxyalkyl, karbamoyl, karbamoyloxy, hydroxy, alkoxy, hydroxyalky1, tri-fluormetyl eller acyl i en hvilken som helst stilling hvor c R betegner hydrogen, alkyl, acyl, karboalkoxy, karbamoyl, 35 alkylkarbamoyl, dialkylkarbamoyl, alkylkarhonylmetyl, alkoxy-karbonylmetyl eller alkylsulfonyl og Ru betegner en ligekædet eller grenet alkylengruppe med 1 til 4 kulstofatomer, hvorved højst én metylengruppe er til stede mellem svovlatomet og py- 150510 2 ridylgruppen, og hvor pyridylgruppen kan være yderligere substitueret med alkyl eller halogen, har inhiberende virkning på mavesyresekretionen.
Det har imidlertid nu overraskende vist sig at de i krav 1 5 angivne beslægtede forbindelser har en endnu kraftigere inhiberende virkning på mavesyresekretionen end de ovenfor nævnte forbindelser I og II. Dette er nærmere belyst i omstående biologiske dokumentation.
Disse forbindelser har den almene formel 10 4 \2 0 -Vv»5 „i £ tt j IT ni 15 R t Jl s i *6
H
20 hvor R^", R2, R2, R^, R~* og R6 har de i krav l's indledning angivne betydning.
1 2
Alkylgrupper R og R i forbindelser med den almene formel IH har fortrinsvis højst 4 kulstofatomer og kan navnlig være metyl, ætyl, n-propyl, isopropyl, n-butyl eller iso-25 butyl.
1 2
Halogenatomer R og R kan være klor, brom, fluor eller jod.
1 2
Alkoxygrupper R og R har hensigtsmæssigt indtil 5 kulstofatomer, fortrinsvis højst 3 kulstofatomer såsom metoxy, 30 ætoxy, n-propoxy eller isopropoxy.
1 2
Alkanoylgrupper R og R kan fx være formyl, acetyl, eller propionyl, fortrinsvis acetyl.
En foretrukken gruppe forbindelser med den almene for-1 2 mel III er sådanne hvor R og R er ens eller forskellige og 35 hver betegner et hydrogenatom eller en alkyl-, karbometoxy-, alkoxy- eller alkanoylgruppe, hvorved R1 og R2 ikke begge kan være hydrogen, og hvor R6 er hydrogen og R3, R^ og R3 er ens eller forskellige og hver udvalgt blandt hydrogenatomet 3 4 5 og metyl-, metoxy- og ætoxygrupper, hvorved R , R og R ikke 150510 3 3 4
alle er hydrogen og hvorved, såfremt to af radikalerne R , R
5 3 4
og R er hydrogen, så er det tredie af disse radikaler R , R
5 og R ikke metyl.
En anden foretrukken gruppe forbindelser med den alme- 1 2 5 ne formel III er sådanne hvor R og R er ens eller forskellige og hver betegner hydrogen, alkyl, halogen, karbometoxy, g karbætoxy, alkoxy éller alkanoyl, hvor R betegner hydrogen, 3 4 5
metyl eller ætyl, R betegner metyl, R betegner metoxy og R
betegner metyl.
10 En tredie foretrukken gruppe forbindelser med den alme- 1 2 ne formel III er sådanne hvor R og R er ens eller forskellige og hver betegner hydrogen, alkyl, halogen, karbometoxy, g karbætoxy, alkoxy eller alkanoyl, R betegner hydrogen, metyl 3 4 5
eller ætyl, R betegner hydrogen, R betegner metoxy og R
3 4 5
15 betegner metyl eller hvor R betegner metyl, R metoxy og R
hydrogen.
En fjerde foretrukken gruppe forbindelser med den al- 1 2 mene formel III er sådanne hvor R og R er ens eller forskellige og hver betegner hydrogen, alkyl, halogen, karbometoxy;,· g 20 karbætoxy, alkoxy eller alkanoyl, R betegner hydrogen, metyl 3 5 4 eller ætyl, R og R betegner hydrogen og R en metoxygruppe.
En femte foretrukken gruppe forbindelser med den al- 1 2 mene formel III er sådanne hvor R og R er ens eller forskellige og hver betegner hydrogen, alkyl, halogen, karbometoxy, g 25 karbætoxy, alkoxy eller alkanoyl, R betegner hydrogen, metyl 3 5 4 eller ætyl, R og R betegner metyl og R betegner hydrogen.
En sjette foretrukken gruppe forbindelser med den al- 1 2 mene formel III er sådanne hvor R og R er ens eller forskellige og hver betegner hydrogen, alkyl, halogen, karbometoxy, g 30 karbætoxy, alkoxy eller alkanoyl, R betegner hydrogen, metyl 3 5 4 eller ætyl, R og R betegner hydrogen og R betegner ætoxy, metoxyætoxy eller ætoxyætoxy.
En syvende foretrukken gruppe forbindelser med den almene formel III er sådanne hvor R og R er ens eller for- 35 skellige og hver betegner hydrogen, alkyl, halogen, karbometoxy, alkoxy eller alkanoyl, R6 betegner hydrogen, metyl eller ætyl 3 4 5 og R , R og R alle er metylgrupper.
150510 4
Udgangsmaterialet med formel IV (se krav l's kendetegnende del) kan fremstilles ved at man
omsætter en forbindelse med den almene formel VII
‘-bo··
H
1 P 1
10 hvor R og R har de i krav 1 angivne betydninger og Z betegner SH eller en reaktiv forestret hydroxygruppe, med en forbindelse med den almene formel VIII
R4 15 “'vJ-Y *5 T II vm
Z2 - j* -kJ
R6 20 hvor , R^, R4 og R^ har de i krav 1 angivne betydninger og 2 Z er en reaktiv forestret hydroxygruppe eller gruppen SH.
Et sådant udgangsmateriale kan også fremstilles ved at man omsætter en forbindelse med den almene formel IX
25 R2 nh2 1 2
30 hvor R og R har dé i krav 1 angivne betydninger, med en forbindelse med den almene formel X
35 r3 T T x HOOC-S-CH-^ i6 hvor R^, R2, R4 og R^ har de i krav 1 angivne betydninger ..
150510 5 1 2 I de ovenfor angivne reaktioner kan Z, Z og Z være en reaktiv forestret hydroxygruppe som er en hydroxygruppe forestret med en stærk uorganisk eller organisk syre, fortrinsvis en halogenbrintesyre såsom saltsyre, brombrintesyre eller 5 jodbrintesyre, eller også med svovlsyre eller en stærk organisk sulfonsyre såsom en stærk aromatisk syre, fx benzensulfonsyre, 4-brombenzensulfonsyre eller 4-toluensulfonsyre,
Oxydationen af svovlatomet i de foran viste kæder til en sulfonylgruppe (S-K)) finder sted i nærværelse af et oxyda-10 tionsmiddel udvalgt blandt salpetersyre, hydrogenperoxyd, persyre, perester, ozon, dinitrogentetraoxyd, jodosobenzen, N-halogensuccinimid, 1-klorbenzotriazol, t-butylhypoklorit, diazobicyklo-[2,2,2]-oktan-bromkompleks, natriummetaperjodat, selendioxyd, mangandioxyd, kromsyre, ceriammoniumnitrat, brom, 15 klor eller sulfurylklorid. Oxydationen finder sædvanligvis sted i et opløsningsmiddel hvori oxydationsmidlet er til stede i noget overskud i forhold til det produkt der skal oxyderes .
I afhængighed af procesbetingelserne og udgangsmate-20 rialerne vindes slutproduktet enten i form af en fri base eller i form af et syreadditionssalt deraf, og der Sigtes med den foreliggende opfindelse til fremstilling af begge disse kategorier forbindelser. Således kan der findes basiske, neutrale eller blandede salte såvel som hemi-, mono-, sesqui-25 eller polyhydrater. Syreadditionssaltene af de omhandlede hidtil ukendte forbindelser kan på i og for sig kendt måde omdannes til den fri base ved hjælp af sådanne basiske stoffer som alkali eller ved ionbytning. På den anden side kan en vundet fri base danne salte med organiske eller uorgani-30 ske syrer. Ved fremstilling af syreadditionssalte bruges der fortrinsvis sådanne syrer der danner passende terapeutisk acceptable salte. Eksempler på sådanne syrer er halogenbrintesyre, sulfonsyre, fosforsyre, salpetersyre og perklorsyre; alifatiske, alicykliske, aromatiske og heterocykliske karb-35 oxylsyrer eller sulfonsyrer såsom myresyre, eddikesyre, pro-pionsyre, ravsyre, glykdlsyre, mælkesyre, æblesyre, vinsyre, citronsyre, ascorbinsyre, maleinsyre, hydroxymaleinsyre, pyro-druesyre, fenyleddikesyre, benzoesyre, p-aminobenzoesyre, antranilsyre, p-hydroxybenzoesyre, salicylsyre eller p-amino- 150510 6 salicylsyre, embonsyre, metansulfonsyre, ætansulfonsyre, hydroxyætansulfonsyre, ætylensulfonsyre, halogenbenzensulfonsyre, toluensulfonsyre, naftylsulfonsyre eller sulfanilsyre; eller metionin, tryptofan, lysin eller arginin.
5 Disse og andre salte af de hidtil ukendte forbindelser som fx pikraterne kan tjene som rensningsmidler for de vundne frie baser. Der kan dannes salte af baserne, de kan skilles fra opløsningen og derefter kan den fri base genvindes fra en ny saltopløsning i renere tilstand.
10 Nogle af de omhandlede forbindelser kan i afhængighed af valget af udgangsmaterialer og procesbetingelser foreligge som optiske isomerer eller racemater, eller, hvis de indeholder to asynmetriske kulstof atomer, være til stede som en isomerblan-ding (racematblanding).
15 Vundne isomerblandinger (racematblandinger) kan adskilles i to stereoisomere (diastereomere) rene racemater ved hjælp af kromatografering eller fraktioneret krystallisation.
De vundne racemater kan adskilles ved kendte metoder, fx omkrystallisation fra et optisk aktivt opløsningsmiddel, an- 20 vendelse af mikroorganismer, reaktion med optisk aktive syrer der danner salte som kan fraskilles, eller underkastes adskillelse baseret på forskellig opløselighed af diastereomererne. Egnede optisk aktive syrer er L- og D-formerne af vinsyre, di-o-toly1vinsyre, æblesyre, mandelsyre, kamfersulfonsyre el- 25 ler kininsyre. Fortrinsvis isoleres den mest aktive af de to antipoder.
Udgangsmaterialerne er kendt eller kan, såfremt de skulle være hidtil ukendte, vindes ved processer der kendt i og for sig.
30 På grund af høj aktivitet, se omstående biologiske do dokumentation, fremstilles ifølge opfindelsen med fordel de i krav 2 definerede forbindelser. Af samme grund kan man med særlig fordel ifølge opfindelsen fremstille de i krav 3 definerede forbindelser.
35 Ifølge opfindelsen kan man med særlig fordel fremstille forbindelsen omeprazol, dvs. 2-[2-(3,5-dimetyl-4-metoxy)-pyri-dylmetylsulfinyl]-(5-metoxy)-benzimidazol med formlen 150510 7 0CH3 CH3N<*ik/CH3
CH3WV ? Y T
l^JJ^ 7-ch2-s —
H
5 der er under klinisk afprøvning.
Andre meget fordelagtige forbindelser, som hensigtsmæssigt fremstilles ifølge opfindelsen, er de i krav 5 angivne.
I farmaceutiske præparater vil mængden af den.virksomme 10 forbindelse i almindelighed andrage mellem 0,1 og 95 vægt% af præparatet, navnlig mellem 0,5 og 20 vægt% i tilfælde af præparater til injektion og mellem 2 og 50 vægt% ved præparater beregnet til oral indgift.
Den typiske daglige dosis af de her omhandlede virksomme 15 stoffer varierer under hensyn til individuelle behov og administrationsmåden. I almindelighed ligger orale doser i området fra 100 til 400 mg af det virksomme stof om dagen, mens intravenøse doser ligger i området fra 5 til 20 mg om dagen.
Nogle eksempler tjener til nærmere belysning af frem-20 gangsmåden ifølge opfindelsen.
De udgangsmaterialer der brugtes i eksemplerne blev fremstillet i overensstemmelse med følgende metoder: (1) en 1,2-diaminoforbindelse såsom o-fenylendiamin blev omsat med kaliumætylxantat (i henhold til Org. Synth. Vol. 30, side 56) 25 til dannelse af et 2-merkaptobenzimidazol; (2) forbindelsen 2-klormetylpyridin fremstilledes ved omsætning af 2-hydroxy-metylpyridin med tionylklorid (i henhold til Arch. Phar. Vol.
26, side 448-451 (1956)); (3) forbindelsen 2-klormetylbenzimid-azol fremstilledes ved kondensation af o-fenylendiamin med 30 kloreddikesyre.
Eksempel 1 28,9 g 2-[2-(4,5-dimetyl)-pyridylmetyltio]-(5-acetyl-35 6-metyl)-benzimidazol opløstes i 160 ml CHCl^f der tilsattes 24,4 g m-klorperbenzoesyre i portioner under omrøring og afkøledes til 5°C. Efter 10 minutter frafiltreredes den udfældede 150510 8 m-klorbenzoesyre. Filtratet fortyndedes med CH2C12, vaskedes med Na2C03-oplØsning, tørredes over Na2S04 og inddampedes i vakuum. Remanensen krystalliseredes efter fortynding med CH^CN og 2-[2-(4,5-dimetyl)-pyridylmetylsulfinyl]-(5-acetyl-5 6-metyl)-benzimidazol omkrystalliseredes fra CH3CN. Udbytte 22,3 g, smp. 158°C.
Eksempel 2-30 10 Fremstilling af forbindelser med formel III og numme reret 2-26 udførtes i overrensstemmelse med eksempel 1. De fremstillede forbindelser er anført i nedenstående tabel, der identificerer de forskellige substituenter i de enkelte forbindelser.
150510 9
Tabel 1
I R
_H_
Eks· 1 2 6 3 4 5 Smp.
nr. IT R R R R R °C.
1 5-COCH3 6-CH3 Η H CH3 CH3 158 2 5-COOCH3 6-CH3 Η H CH3 CH3 163 3 5-COOCH3 H HH CH3 CH3 141 4 5-COCH3 6-CH3 H CH3 CH3 H 160 5 5-COOCH3 6-CH3 H CH3 CH3 H 163 6 4-CH3 6-CH3 H CH3 H CH3 50-55 7 5-COCH-j 6-CH3 H CH3 H CH3 171 8 5-COCH3 6-CH3 H CH3 CH3 CH3 190 9 5-COCH3 6-CH3 Η H OCH3 H 165 10 4-CH3 6"CH3 h h 0CH3 h 122 11 5-COCH3 6-CH3 H CH3 OCH3 CH3 156 12 5-COOCH3 6-CH3 H CH3 H CH3 144 13 5-COOCH3 6-CH3 H CH3 CH3 CH3 185 14 5-COOCH3 6-CH3 Η H OCH3 H 169 15 5-COOCH3 6-CH3 Η H OC2H5 H 148 16 5-COOCH3 6-CH3 H CH3 OCH3 H 175 17 5-COOCH3 6-CH3 H CH3 OCH3 CH3 155 18 5-COOCH3 6-CH3 Η H OCH3 CH3 158 19 5-COOCH3 Η H CH3 H CH3 141 20 5-COOCH3 Η H CH3 OCH3 CH3 142 21 5-COCH3 Η H CH3 OCH3 CH3 162 22 5-OCH3 H HH OCH3 CH3 178 23 5-OCH3 Η H CH3 OCH3 CH3 156 24 5“CH3 Η H CH3 OCH3 CH3 181 25 H HH CH3 OCH3 CH3 165 26 5-Cl Η H CH3 OCH3 CH3 185 27 5-CH3 H HH OC2H4QCH3 H 119 28 5-COOC2H5 Η H CH3 OCH3 CH3 150-155 29 5-COOCH3 H CH3 CH3 H CH3 130 30 5-CH3 H CH3 CH3 H CH3 152 150510 10
Eksempel 31 0,1 mol 4,6-dimetyl-2-merkaptobenzimidazol opløstes i 20 ml vand og 200 ml ætanol indeholdende 0,2 mol natriumhy-droxyd. Der tilsattes 0,1 mol 2-klormetyl-(3,5-dimetyl)-py-ridin-hydroklorid og blandingen tilbagesvaledes i to timer.
5 Det dannede natriumklorid frafiltreredes og opløsningen inddampedes i vakuum. Remanensen opløstes i acetone og behandledes med aktive kul. Der tilsattes en ækvivalent mængde koncentreret saltsyre, hvorefter monohydrokloridet af 2-[2-(3,5-dimetyl)-pyridylmetyltio]-(4,6-dimetyl)-benzimidazol isole-10 redes. Udbytte 0,05 mol.
Denne forbindelse oxyderedes derefter i overensstemmelse med eksempel 1 og gav den tilsvarende sulfinylforbindelse som havde smp. 50-55°C.
15
Eksempel 32 (metode b) 0,1 mol 2-[Li-metylsulfinyl]-(5-acetyl-6-metyl)-benzimidazol opløstes i 150 ml benzen. Der tilsattes 0,1 mol 2-20 klor-(3,5-dimetyl)-pyridin og blandingen tilbagesvaledes i to timer. Det dannede litiumklorid frafiltreredes og opløsningen inddampedes i vakuum. Remanensen krystalliseredes fra CH3CN og omkrystalliseredes fra samme opløsningsmiddel. Udbytte 0,82 mol 2-[2-(3,5-dimetyl)-pyridylmetylsulfinyl]-(5-acetyl-25 6-metyl)-benzimidazol med smp. 171°C.
Eksempel 33 23,4 g 2-[2-(3,4,5-trimetyl)-pyridylmetyltio]-myre-30 syre og 16,6 g o-(5-acetyl-6-metyl)-fenylendiamin kogtes i 40 minutter i 100 ml 4N HC1. Blandingen afkøledes og neutraliseredes med ammoniak. Den neutrale opløsning blev derefter ekstraheret med ætylacetat. Den organiske fase behandledes med aktive kul og inddampedes i vakuum. Remanensen opløstes i ace-35 tone hvorpå der tilsattes en ækvivalent mængde koncentreret.
HC1. Det udfældede hydroklorid frafiltreredes efter afkøling og saltet omkrystalliseredes fra absolut ætanol og noget æter.
150510 11
Udbyttet af 2-(2-(3,4,5-trimetylpyridyl)-metyl.tio]-(5-acetyl- 6-metyl)-benzimidazol androg 6,5 g.
Denne forbindelse blev derefter oxyderet i overensstemmelse 5 med eksempel 1 og gav det tilsvarende sulfinylderivat. Smp.
190°C.
Eksempel 34 22,0 g 2-merkapto-(5-acetyl-6-metyl)-benzimidazol og 10 19,5 g klormetyl-(4,5-dimetyl)-pyridin-hydroklorid opløstes i 200 ml 95%s ætanol. Der tilsattes 8 g natriumhydroxyd i 20 ml vand, hvorefter opløsningen tilbagesvaledes i to timer. Det dannede natriumklorid frafiltreredes og opløsningen inddampedes i vakuum. Remanensen, 2-[2-(4,5-dimetyl)-pyridylmetyltio]-15 (5-acetyl-6-metyl)-benzimidazol, omkrystalliseredes fra 70%s ætanol. Udbytte 10,6 g.
Denne forbindelse oxydéredes i overensstemmelse med eksempel 1 og gav det tilsvarende sulfinylderivat med smp. 158°C.
20
Biologisk virkning
De ved fremgangsmåden ifølge opfindelsen fremstillede forbindelser har værdifulde terapeutiske egenskaber som inhibitorer for sekretion af mavesyre, hvilket fremgår af følgende forsøg. For at bestemme egenskaberne med hensyn til at inhi-25 bere mavesyresekretionen blev der udført forsøg med hunde som var ved bevidsthed og som var udstyret med mavefistler af konventionel type og med duodenalfistler, sidstnævnte anvendtes til direkte intraduodenal indgift af testforbindelserne. Efter 18 timer med faste og uden adgang til vand fik hundene en sub-30 kutan infusion af pentagastrin (1-4 nmol/kg/h) der varede i 6-7 timer. Mavesaft opsamledes i på hinanden følgende 30 minutters prøver. En lille portion af hver prøve blev titreret med 0,1 N NaOH til pH 7,0 for titrerbar syrekoncentration og under anvendelse af automatiske titrater og pH-meter (fra Radiometer -f.
35 i København). Syreudbyttet blev beregnet som mmol H /60 minutter. Den procentuelle inhibering i sammenligning med kontrolforsøg blev beregnet for hver forbindelse og den største inhi- 150510 12 berende effekt er anført i omstående tabel 2. Testforbindelserne, suspenderet i 0,5% "Methocel" ® (metylcellulose) blev givet intraduodenalt i doser på 4-20 ymol/kg efter at sécre-tionsreaktionen på pentagastrin havde nået konstant niveau.
5 Ved forsøget blev virkningen af forbindelser kendt fra førnævnte US patentskrift 4.045.563 og DK patentskrift 140.840 sammenligned med virkningen af forbindelser fremstillet ved den foreliggende fremgangsmåde. Resultaterne er vist i tabel 2. Her er de kendte forbindelser litreret, mens de ved frem-10 gangsmåden ifølge opfindelsen fremstillede er identificeret ••.ved vedkommende eksempelnummer. I begge tilfælde er substitu-enterne defineret.
Denne tabel viser data for den mavesyreinhiberende virkning, der opnåedes med et antal forbindelser afprøvet på 15 den-beskrevne måde.
Tabel 2 R4 ' o ,1—CjC:/- S -f-^ I i6
H
forbin- . 2 6 1 d κ Dosis Effekt delse R R R R R4 - RD ymol/kg % inhi“ ...._-____________bering_ eks. 1 5-COCH3 6-CH3 Η H CH3 CH3 2 .90 eks. 4 5-COCH3 6-CH3 H CH3 CH3 Η 1 60 eks. 7 5-COCH3 6-CH3 H CH3 H CH3 2 100 eks. .8 5-COCH3 6“CH3 H CH3 CH3 CH3 4 100 eks. 9 5-COCH3 6-CH3 Η H 0CH3 H 2 95 eks.11 5-COCH3 6-CH3 H CH3 0CH3 CH3 0,5 70 . Ά 5-COCH3 6-CH3 Η H CH3 H 20 30 B 5-COCH3 6-CH3 Η Η H CH3 8 80 eks. 2 5-COOCH3 6-CH3 Η H CH3 CH3 2 60 eks. 5 5-COOCH3 6-CH3 H CH3 CH3 H 2 90 eks.12 5-COOCH3 6-CH3 H CH3 H CH3 2 70 eks.13 5-COOCH3 6-CH3 H CH3 CH3 CH3 4 80 eks.14 5-COOCH3 6-CH3 Η H OCH3 H 2 100 eks.15 5-COOCH3 6-CH3 Η H OC2H5 H 4 75 eks.16 5-COOCH3 6-CH3 H CH3 OCH3 H 0,5 65 forts.
150510 13
Forbin-, , Dosis Effekt delse iT rd r3 r4 r3 ymol/kg % inhi- __________bering-j eks. 17 5-COOCH3 6-CH3 H CH3 0CH3 CH3 0,5 90 eks. 18 5-COOCH3 6-CH3 Η H OCH3 CH3 0,5 65 C 5-COOCH3 6-CH3 Η Η H CH3 4 50 D 5-COOCH3 6-CH3 H Br Η H 4 0 eks. 6 4-CH3 6-CH3 h CH3 h CH3 /0,5 40 eks. 10 4-CH3 6-CH3 Η H 0CH3 H 2 40 E 4-CH, 6-CH-3 Η Η Η H /4 30 3 3 ,10,5 0 F 4-CH- 6-CH, Η Η H CH-, /12' 50 3 3 3 L 4 20 eks. 3 5-COOCH3 H HH CH3 CH3 4 100 eks. 19 5-COOCH3 Η H CH3 H CH3 2 60 eks. 20 5-COOCH3 Η H CH3 OCH3 CH3 0,5 65 G 5-COOCH3 Η Η Η H CH3 20 90 H 5-COOCH3 Η Η Η Η H 20 50 eks. 21 5-COCH3 Η H CH3 0CH3 CH3 0,5 60 I 5-COCH3 Η Η Η H C2H5 20 40 eks. 22 5-OCH3 H HH OCH3 CH3 °'5 65 eks. 23 5-OCH3 Η H CH3 OCH3 CH3 0,5 65 J 5-OCH3 Η Η H CH3 H 20 10 eks. 24· 5-CH3 Η H CH3 OCH3 CH3 0,5 50 K 5-CH3 Η Η Η H CH3 4 50 eks. 25 Η Η H CH3 OCH3 CH3 0,5 60 E Η Η HHHH4 50 eks. 28 5-COOC2H5 Η H CH3 OCH3 CH3 0,5 50 eks. 26 5-C1 Η H CH3 0CH3 CH3 0,5 25 eks. 27 5“CH3 H HH OC2H4OCH3 H 0,5 30 eks. 29 5-COOCH3 H CH3 CH3 H CH3 0,5 40 M 5-COOC2H5 Η Η Η Η H 15 - 8 N 5-Cl Η Η Η H CH3 20 20 O 5-Cl Η Η Η Η H 10 50 150510 14
Det ses at forbindelserne ifølge eksempel 1, 4, 7 og 9 er mindst 2-30 gange så effektive som forbindelserne A og B. Forbindelserne ifølge eksemplerne 2, 5, 12 og 13 er mindst dobbelt så effektive som forbindelserne C og D. Forbindelsen iføl-5 ge krav 6 er mindst 30% mere effektiv end forbindelsen E og 2-3 gange så effektiv som forbindelsen F ved en dosis på 4 mol/kg.
Ved nedsættelse af den indgivne mængde til 0,5 mol/kg giver forbindelsen ifølge eksempel 6 stadig en inhibering på 40%, mens forbindelsen E ingen virkning har. Forbindelserne 3 og 19 10 er ca. 5-10 gange så effektive som forbindelserne G og H. Forbindelsen ifølge eksempel 25 er mindst 8 gange så effektiv som forbindelsen L, der er den usubstituerede tilsvarende forbindelse. Forbindelsen ifølge eksempel 28 er mindst 100 gange så effektiv som forbindelsen M.
15
Claims (5)
1. Analogifremgangsmåde til fremstilling af substituere de 2-(2-benzimidazolyl)-pyridiner med den almene formel R4 5 *\ „ 3 I „5 111 • R6 H 10 eller terapeutisk acceptable salte deraf, i hvilken formel 1 2 R og R , der er ens eller forskellige, hver betegner hydrogen, halogen, alkyl, karbometoxy, karbætoxy, C^_g alkoxy 15 eller C,, alkanoyl i en hvilken som helst stilling, R6 x ’ 3 4 5 hydrogen, metyl eller ætyl og R , R og R , der er ens eller forskellige, hver hydrogen, metyl, metoxy, ætoxy, metoxy- 3 4 5 ætoxy eller ætoxyætoxy,- idet R , R og R dog ikke alle kan be- 3 4 5 tegne hydrogen og idet det tredie af symbolerne R , R og R o 3 4 20 ikke kan betegne metyl såfremt to af disse symboler R , R 5 og R betegner hydrogen, kendetegnet ved at man a) oxyderer en forbindelse med den almene formel R4 25. w. *nA^5 —γ-ΧΓ 3 *· 1^ 6 3 4 5 30 hvor R , R , R , R , R og R har de ovenfor angivne betydninger, til dannelse af en forbindelse med den almene formel III, eller b) omsætter en forbindelse med den almene formel 150510 R\ O i ΐ R-r |l —s—CH— M v
5. R6 H 12 6 hvor R , R og R har de ovenfor angivne betydninger og M er et af metallerne K, Na og Li, med en forbindelse med den almene formel
10 R4 :xr- 15 3 4 5 hvor R , R og R har de ovenfor angivne betydninger og Z er en reaktiv forestret hydroxygruppe, til dannelse af en forbindelse med den almene formel III, hvorpå man, såfremt forbindelsen III er vundet som en base om 20 ønsket omdanner den til et syreadditionssalt deraf eller, hvis forbindelsen III foreligger som et salt, om ønsket frigør basen derfra.
2. Fremgangsmåde ifølge krav 1, kendetegnet ved at den anvendes til fremstilling af en forbindelse med 25 den almene formel III, hvor R^ betegner hydrogen, klor, metyl, 2 ætyl, metoxy, acetyl, karbætoxy eller karbometoxy, R betegner g hydrogen eller metyl, R betegner hydrogen, metyl eller ætyl, 3 5 4 R og R betegner metyl og R metoxy, eller et terapeutisk acceptabelt salt deraf.
3. Fremgangsmåde ifølge krav 1, kendetegnet ved at der fremstilles forbindelser af den almene formel III, hvor R^ betegner hydrogen, klor, metyl, ætyl, acetyl, metoxy, karbætoxy eller karbometoxy, R betegner hydrogen, metyl 6 4 eller ætyl, R betegner hydrogen, metyl eller ætyl, R beteg- 150510
4. Fremgangsmåde ifølge krav 1, kendetegnet ved at der fremstilles 2-[2-(3,5-dimetyl-4-metoxy)-pyridylmetylsul-finyl]-(5-metoxy)-benzimidazol, (omeprazol).
5. Fremgangsmåde ifølge krav 1, kendetegnet ved 5 at der fremstilles 2- [2- (3,4-dimetyl)-pyridylmetylsulfinyl]-(5-acetyl-6-metyl)-benzimidazol, 2-[2-(4,5-dimetyl)-pyridylmetylsulfinyl]-(5-karboxymetoxy)-benzimidazol, 10 2-[2-(4,5-dimetyl)-pyridylmetylsulfinyl]-(5-acetyl-6-metyl)- benzimidazol, 2-[2-(4,5-dimetyl)-pyridylmetylsulfinyl]-(5-karbometoxy-6-metyl)-benzimidazol, 2-[2-(3,4-dimetyl)-pyridylmetylsulfinyl]-(5-karbometoxy-6-15 metyl)-benzimidazol , 2-[2-(3,5-dimetyl)-pyridylmetylsulfinyl]-(5-acetyl-6-metyl)-benz imida zo1, 2-[2-(3,4,5-trimetyl)-pyridylmetylsulfinyl]-(5-acetyl-6-metyl)-benzimidazol, 20 2-[2-(4-metoxy)-pyridylmetylsulfinyl]-(5-acetyl-6-metyl)-benz imidazol , 2- [2-(3,5-dimetyl-4-metoxy)-pyridylmetylsulfinyl]-(5-acetyl- 6-mety1)-benz imidazo1, 2-[2-(3,5-dimetyl)-pyridylmetylsulfinyl]-(5-karbometoxy-6-25 metyl)-benzimidazol, 2-[2-(3,4,5-trimetyl)-pyridylmetylsulfinyl]-(5-karbometoxy- 6-metyl)-benzimidazol/ 2-[2-(4-metoxy)-pyridylmetylsulfinyl]-(5-karbometoxy-6-metyl)-benzimidazol, 30 2-[2-(4-ætoxy)-pyridylmetylsulfinyl]-(5-karbometoxy-6-metyl)- benzimidazol, 2-[2-(3-metyl-4-metoxy)-pyridylmetylsulfinyl]-(5-karbometoxy- 6-metyl)-benzimidazol, 2—[2—(3,5-dimetyl-4-metoxy)-pyridylmetylsulfinyl]-(5-karbo-35 metoxy-6-metyl)-benzimidazol, 2—[2—(4-metoxy-5-metyl)-pyridylmetylsulfinyl]-(5-karbometoxy- 6-metyl)-benzimidazol,
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Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1234058A (da) * | 1968-10-21 | 1971-06-03 | ||
SE418966B (sv) * | 1974-02-18 | 1981-07-06 | Haessle Ab | Analogiforfarande for framstellning av foreningar med magsyrasekretionsinhiberande verkan |
US4045564A (en) * | 1974-02-18 | 1977-08-30 | Ab Hassle | Benzimidazole derivatives useful as gastric acid secretion inhibitors |
SE416649B (sv) * | 1974-05-16 | 1981-01-26 | Haessle Ab | Forfarande for framstellning av foreningar som paverkar magsyrasekretionen |
IN148930B (da) * | 1977-09-19 | 1981-07-25 | Hoffmann La Roche |
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1978
- 1978-04-14 SE SE7804231A patent/SE7804231L/xx unknown
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1979
- 1979-04-03 CY CY1232A patent/CY1232A/xx unknown
- 1979-04-03 ZA ZA791586A patent/ZA791586B/xx unknown
- 1979-04-03 EP EP79850022A patent/EP0005129B1/en not_active Expired
- 1979-04-03 DE DE7979850022T patent/DE2960293D1/de not_active Expired
- 1979-04-05 US US06/027,277 patent/US4255431A/en not_active Expired - Lifetime
- 1979-04-09 CA CA325,188A patent/CA1127158A/en not_active Expired
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- 1979-04-14 JP JP54044910A patent/JPS6034956B2/ja not_active Expired
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- 1979-08-08 IE IE785/79A patent/IE48370B1/en not_active IP Right Cessation
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1980
- 1980-01-18 SU SU802867805A patent/SU873879A3/ru active
- 1980-01-18 SU SU802870598A patent/SU878196A3/ru active
- 1980-01-18 SU SU802870599A patent/SU873880A3/ru active
- 1980-05-19 US US06/150,965 patent/US4337257A/en not_active Expired - Lifetime
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1983
- 1983-04-06 US US06/482,513 patent/US4508905A/en not_active Expired - Lifetime
- 1983-04-21 JP JP58069319A patent/JPS58192880A/ja active Granted
- 1983-10-17 SG SG633/83A patent/SG63383G/en unknown
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1984
- 1984-01-12 NO NO840112A patent/NO152785C/no unknown
- 1984-02-23 HK HK152/84A patent/HK15284A/xx not_active IP Right Cessation
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1985
- 1985-12-30 MY MY74/85A patent/MY8500074A/xx unknown
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1993
- 1993-06-16 LU LU88307C patent/LU88307I2/fr unknown
- 1993-06-16 NL NL930074C patent/NL930074I2/nl unknown
- 1993-06-16 NL NL930075C patent/NL930075I2/nl unknown
- 1993-06-16 LU LU88305C patent/LU88305I2/xx unknown
- 1993-09-06 LT LTRP937A patent/LT2274B/xx unknown
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1994
- 1994-02-25 BG BG98597A patent/BG61492B2/bg unknown
- 1994-12-21 NO NO1994027C patent/NO1994027I1/no unknown
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1995
- 1995-06-14 NO NO1995005C patent/NO1995005I1/no unknown
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