NO763197L - Fremgangsm}te til fremstilling av antelmintisk virksomme 2-karbalkoksyamino-benzimidazolderivater. - Google Patents
Fremgangsm}te til fremstilling av antelmintisk virksomme 2-karbalkoksyamino-benzimidazolderivater.Info
- Publication number
- NO763197L NO763197L NO763197A NO763197A NO763197L NO 763197 L NO763197 L NO 763197L NO 763197 A NO763197 A NO 763197A NO 763197 A NO763197 A NO 763197A NO 763197 L NO763197 L NO 763197L
- Authority
- NO
- Norway
- Prior art keywords
- carbomethoxyamino
- benzothiadiazine
- benzimidazole
- ester
- sulfonic acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000002360 preparation method Methods 0.000 title claims description 4
- 229940058303 antinematodal benzimidazole derivative Drugs 0.000 title description 6
- 230000000694 effects Effects 0.000 title description 4
- -1 1-4 C-atom alkoxy Chemical class 0.000 claims description 21
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- NLXPDNKIQMAKCH-UHFFFAOYSA-N 1h-2,1,4-benzothiadiazine Chemical class C1=CC=C2NSC=NC2=C1 NLXPDNKIQMAKCH-UHFFFAOYSA-N 0.000 claims description 4
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims description 4
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 2
- 238000000354 decomposition reaction Methods 0.000 description 21
- 150000002148 esters Chemical class 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- 239000013543 active substance Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000003776 cleavage reaction Methods 0.000 description 4
- 235000013601 eggs Nutrition 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 230000007017 scission Effects 0.000 description 4
- 125000001424 substituent group Chemical group 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 150000007658 benzothiadiazines Chemical class 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 2
- LPGZJNUYYNQUCX-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 3,4-dichlorobenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=C(Cl)C(Cl)=C1 LPGZJNUYYNQUCX-UHFFFAOYSA-N 0.000 description 2
- ISBOUSHXNPQEJV-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 3,5-dichlorobenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC(Cl)=CC(Cl)=C1 ISBOUSHXNPQEJV-UHFFFAOYSA-N 0.000 description 2
- OAXIPAMEOHCMKW-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 3-chlorobenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC(Cl)=C1 OAXIPAMEOHCMKW-UHFFFAOYSA-N 0.000 description 2
- HFXWMGNCZMWMRA-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 3-methylbenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC(C)=C1 HFXWMGNCZMWMRA-UHFFFAOYSA-N 0.000 description 2
- LKUIZYHKNRHFFZ-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 4-chlorobenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=C(Cl)C=C1 LKUIZYHKNRHFFZ-UHFFFAOYSA-N 0.000 description 2
- MWPQFRBSPKPQEU-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] benzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC=C1 MWPQFRBSPKPQEU-UHFFFAOYSA-N 0.000 description 2
- USQXMRHUAONQBW-UHFFFAOYSA-N [3-(propan-2-yloxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 3-(trifluoromethyl)benzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC(C)C)=NC2=CC=C1OS(=O)(=O)C1=CC=CC(C(F)(F)F)=C1 USQXMRHUAONQBW-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 244000000013 helminth Species 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000045947 parasite Species 0.000 description 2
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- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ALKQQCLVJCSDJA-UHFFFAOYSA-N (2-nitrophenyl)carbamothioylcarbamic acid Chemical compound C1=CC=C(C(=C1)NC(=S)NC(=O)O)[N+](=O)[O-] ALKQQCLVJCSDJA-UHFFFAOYSA-N 0.000 description 1
- DPJCXCZTLWNFOH-UHFFFAOYSA-N 2-nitroaniline Chemical class NC1=CC=CC=C1[N+]([O-])=O DPJCXCZTLWNFOH-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 241000893172 Chabertia Species 0.000 description 1
- 241001126268 Cooperia Species 0.000 description 1
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- 108010010803 Gelatin Proteins 0.000 description 1
- 241000243976 Haemonchus Species 0.000 description 1
- 241000243974 Haemonchus contortus Species 0.000 description 1
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- 241000244174 Strongyloides Species 0.000 description 1
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- QQJXCDUBIAECTE-UHFFFAOYSA-N [3-(butoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] benzenesulfonate Chemical compound C1=C2NSC(NC(=O)OCCCC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC=C1 QQJXCDUBIAECTE-UHFFFAOYSA-N 0.000 description 1
- KNSMAFVMAGPLCD-UHFFFAOYSA-N [3-(ethoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 3-(trifluoromethyl)benzenesulfonate Chemical compound C1=C2NSC(NC(=O)OCC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC(C(F)(F)F)=C1 KNSMAFVMAGPLCD-UHFFFAOYSA-N 0.000 description 1
- WNCNJIMAODCZCH-UHFFFAOYSA-N [3-(ethoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] benzenesulfonate Chemical compound C1=C2NSC(NC(=O)OCC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC=C1 WNCNJIMAODCZCH-UHFFFAOYSA-N 0.000 description 1
- ILOHHNAACFCVAK-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 2-bromobenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC=C1Br ILOHHNAACFCVAK-UHFFFAOYSA-N 0.000 description 1
- HSQIOBWCNDTNBK-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 2-chloro-4-methylbenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=C(C)C=C1Cl HSQIOBWCNDTNBK-UHFFFAOYSA-N 0.000 description 1
- DXSMOLNVJMYSSA-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 2-chloro-6-methylbenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=C(C)C=CC=C1Cl DXSMOLNVJMYSSA-UHFFFAOYSA-N 0.000 description 1
- FPUWRIHKPGHAMY-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 2-chlorobenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC=C1Cl FPUWRIHKPGHAMY-UHFFFAOYSA-N 0.000 description 1
- UUGCEJKKTVSZRR-UHFFFAOYSA-N [3-(methoxycarbonylamino)-1h-2,1,4-benzothiadiazin-7-yl] 2-methylbenzenesulfonate Chemical compound C1=C2NSC(NC(=O)OC)=NC2=CC=C1OS(=O)(=O)C1=CC=CC=C1C UUGCEJKKTVSZRR-UHFFFAOYSA-N 0.000 description 1
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- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- UFEJXQWSRLAIOY-UHFFFAOYSA-N phenyl 1h-benzimidazole-2-sulfonate Chemical compound N=1C2=CC=CC=C2NC=1S(=O)(=O)OC1=CC=CC=C1 UFEJXQWSRLAIOY-UHFFFAOYSA-N 0.000 description 1
- FNKPQMSVJJSRBP-UHFFFAOYSA-N phenyl 2-(butoxycarbonylamino)-3h-benzimidazole-5-sulfonate Chemical compound C1=C2NC(NC(=O)OCCCC)=NC2=CC=C1S(=O)(=O)OC1=CC=CC=C1 FNKPQMSVJJSRBP-UHFFFAOYSA-N 0.000 description 1
- YVPYMPMYOGQFIW-UHFFFAOYSA-N phenyl 2-(ethoxycarbonylamino)-3h-benzimidazole-5-sulfonate Chemical compound C1=C2NC(NC(=O)OCC)=NC2=CC=C1S(=O)(=O)OC1=CC=CC=C1 YVPYMPMYOGQFIW-UHFFFAOYSA-N 0.000 description 1
- JMVOTQMMWZCLEX-UHFFFAOYSA-N phenyl 2-(methoxycarbonylamino)-3h-benzimidazole-5-sulfonate Chemical compound C1=C2NC(NC(=O)OC)=NC2=CC=C1S(=O)(=O)OC1=CC=CC=C1 JMVOTQMMWZCLEX-UHFFFAOYSA-N 0.000 description 1
- BWJKYQSSWVHQEG-UHFFFAOYSA-N phenyl 2-(propan-2-yloxycarbonylamino)-3h-benzimidazole-5-sulfonate Chemical compound C1=C2NC(NC(=O)OC(C)C)=NC2=CC=C1S(=O)(=O)OC1=CC=CC=C1 BWJKYQSSWVHQEG-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000003356 phenylsulfanyl group Chemical group [*]SC1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
- 230000035938 sexual maturation Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 229960001295 tocopherol Drugs 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
- C07D285/15—Six-membered rings
- C07D285/16—Thiadiazines; Hydrogenated thiadiazines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
- C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
- C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
- C07D235/24—Benzimidazoles; Hydrogenated benzimidazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
- C07D235/30—Nitrogen atoms not forming part of a nitro radical
- C07D235/32—Benzimidazole-2-carbamic acids, unsubstituted or substituted; Esters thereof; Thio-analogues thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Description
Fremgangsmåte til fremstilling av antelmintisk virksomme 2-karbalkoksyamino-benzimidazolderivater.
2-karbalkoksyamino-benzimidazolylderivater med alkyl-, acyl-, fenoksy- og fenyltio-rester i 5(6)-stilling er kjent som antelmintika (P. Actor et al., Nature 215, 321 (1967), DOS 2.029.637, DOS 2.164.690 og 2.363-348).
Oppfinnelsens gjenstand er en fremgangsmåte til fremstilling av antelmintisk virksomme 2-karbalkoksyamino-benzimidazolderivater med formelen
hvori R-^betyr alkyl med 1-4 C-atomer, R2og R, betyr hver uavhengig av hverandre hydrogen, alkoksy med 1-4 C-atomer, halogen, trifluormetyl, alkyl med 1-4 C-atomer eller CN og X betyr grupperingen -O-SO2- eller -SOg-O-, idet fremgangsmåten erkarakterisert vedat ét 1H- 2,1,4-benzotiadiazinderivat med formel (2) hvori R-^- R^ og X har samme betydning som for formel (1), Rjj betyr hydrogen, en acetyl- eller benzoylrest og n betyr null eller en, behandles med en syre eller trifenylfosfin, eller når R^ betyr acetyl- eller benzoy1-resten med en base.
Som alkylrester i substituentene R-^ R2og R^kommer det i betraktning: metyl, etyl, propyl, isopropyl, butyl, sek.-butyl, tert.-butyl. Som alkoksygrupper i substituentene R2og R-j kommer det i betraktning: metoksy, etoksy, propoksy, isopropoksy og butoksy. Som halogenatomer i substituentene R2og R^kommer det i betraktning: fluor, klor, brom og jod.
Spesielt foretrukket er forbindelser med formel (1) hvori R^ betyr metyl, etyl, propyl eller butyl, R2betyr hydrogen og Rj betyr hydrogen, klor, brom, trifluormetyl, metyl, etyl, metoksy eller etoksy, idet R^spesielt fordelaktig står i fenyl-ringens 3_stilling.
Utføres fremgangsmåten ifølge oppfinnelsen således at man omsetter et benzotiadiazinderivat med formel (2), hvori R^ betyr hydrogen, med en syre, så blander man hensiktsmessig minst ekvimolare mengder av syren med en oppløsning av forbindelsen med formel (2), hvori R^ betyr hydrogen. Som oppløsningsmiddel egner det seg overveiende polare organiske oppløsningsmidler som lavere-alifatiske alkoholer, etere, dioksan, aceton, acetonitril, dietylenglykoleter, tetrahydrofuran, dimetylformamid nemlig såvel i ren form som også i blanding med vann. I sistnevnte tilfelle velger man en pH-verdi hensiktsmessig under 4. Reaks j onstempera--turen kan ligge mellom 0 og 120°C, fortrinnsvis imidlertid mellom 15 og 60°C. Som syrer egner det seg såvel uorganiske syrer som halogenhydrogensyre og andre mineralsyrer som også sterke organiske syrer som eksempelvis sulfonsyre.
Utføres fremgangsmåten ifølge oppfinnelsen således at man omsetter et benzotiadiazinderivat med formel (2) hvori R^betyr hydrogen med trifenylfosfin, oppvarmer man deretter hensiktsmessig reaksjonsdeltagerne i et oppløsningsmiddel med en temperatur mellom 40 og 120°C, fortrinnsvis til det anvendte oppløsningsmiddels kokepunkt. Som oppløsningsmidler egner det seg spesielt aprotiske oppløsningsmidler som kloroform, benzen, metylendiklorid, tetrahydrofuran eller dioksan.
Utføres fremgangsmåten ifølge oppfinnelsen således at man omsetter et benzotiadiazinderivat med formel (2), hvori R^betyr et acylradikal med en base, så blander man minst ekvimolare mengder av basen med en oppløsning av forbindelsen med formel (2). Som oppløsningsmiddel hertil egner deg seg spesielt de slik de ble omtalt ovenfor ved reaksjonen med syre. I tilfelle en blanding av det nevnte oppløsningsmiddel med vann, bør reaksjonsmediets pH-verdi ligge over 8. Som baser egnar det seg såvel uorganiske som alkali- og jordalkalihydroksyder. Alkali-metallkarbonat og -hydrogenkarbonater samt -fosfater som også uorganiske som tertiære aminer og kvartære ammoniumhydroksyder.
Spesielt gode resultater får man ved omsetning av et benztiadiazinderivat med formel (2) med trifenylfosfin i et oppløsningsmiddel.
Fremstillingen av utgangsmaterialene med formel (2) er omtalt i tysk søknad P 2541 742.9 og foregår ved redusering av et o-nitrofenyltionokarbamoylkarbaminat med formel (3)
hvori R-p R^ 3 R-^°g x nar den i forbindelse med formel (2) angitte betydning, med natriumditionitt i alkalisk oppløsning. o-nitrofenyl-tionokarbamoylkarbaminatet på sin side fås av et o-nitroanilinderivat med formel (4)
ved omsetning med alkylisotiocyanatoformiat med formel:
S = C = N - COOR-l
hvori substituentene hver har ovennevnte betydning.
Som 1H- 2,1,4-benzotiadiazinderivater med formel (2) kommer det på tale: 3-karbometoksyamino-7-(1H-2 ,1,4-benzotiadiazin)-sulfonsyrefenyl-ester,
3-karbometoksyamino-7-(1H-2,1, 4-benzotiadiazin)-sulfonsyre-4-klor-fenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-3-klorfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-2-klorfenylester, } 3-karbometoksyamino-7-(1H-2 31,4-benzodiadiazin)-sulfonsyre-2 3 5-
diklorfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-3, 5~ diklorfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-bromfenylester,
3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfonsyre-3-bromfenylester,
3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfonsyre-2-bromfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-metylfenylester,
3-karbometoksyamino-7-(1H-2,1, 4-benzotiadiazin) - sulf onsyrei-met ylf enylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)sulfonsyre-2-metylfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-t.butylfenylesterj
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-2,4-dimetylfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-2-klor-4-metylfenylesterj
3-karbometoksyamino-7- (1H-2,1 ,'4-benzo tiadiaz in) - sulf onsyr e-2-klor-6-metylfenylester,
3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfonsyre-3-klor-4-metylfenylester,
3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfonsyre-3-klor-6-metylfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-klor-2-metylfenylester,
3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-klor-3-metylfenylester,
3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfonsyre-3_ trifluormetylfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-metoksyfenylesterj
3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfonsyre-3-metoksyfenylester,
3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfonsyre-2-metoksyfenylester,
3-karbornetoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-propoksyfenylester,
3-karbornetoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-isopropoksyfenylester,
3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-butoksyfenylester,
3-karbornetoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-isobutoksyfenylester,
3-karbetoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyrefenyl-ester ,
3-karbopropoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-fenylester,
3-karbisopropoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-fenylester,
3-karbbutoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyrefenyl-ester ,
3-karbxsbutoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-fenylester,
3-karbo-t.butoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-fenylester,
3-karbometoksyamino-7-fenylsulfonyloksy-lH-2,1,4-benzotiadiazin, 3-karbometoksyamino-7-(4-klor-fenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(3-klorfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(2-klorfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
■3-karbometoksyamino-7-(2,5-diklorfenylsulfonyloksy)-1H-2,1,4 - benzotiadiazin,
3-karbometoksyamino-7-(3,4-diklorfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(3,5-diklorfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbornetoksyamino-7-(4-bromfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin ,
3-karbornetoksyamino-7-(3-bromfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(2-bromfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin ,
■3-karbometoksyamino-7-(4-metylfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(3-metyl-fenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(2-metylfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(4-tert.butyl-fenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(2-klor-4-metylfenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin, 3-karbometoksyamino-7-(2-klor-6-metylfenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin,
3-karbometoksyamino-7-(3-klor-4-metyl-fenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin,
3-karbometoksyamino-7-(3-klor-6-metyl-fenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin,
3-karbometoksyamino-7-(4-klor-2-metylfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(4-klor-3-metylfenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin,
3-karbometoksyamino-7-(3-trifluormetylfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
.3-karbometoksyamino-7-(4-metoksyfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin, 3-karbometoksyamino-7-(3-metoksyfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin, .3-karbometoksyamino-7-(2-metoksyfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(4-propoksyfenylsulfonyloksy)-lH-2,l,4-benzotiadiazin,
3-karbometoksyamino-7-(4-isopropoksyfenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin,
3-karbometoksyamino-7-(4-butoksyfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbometoksyamino-7-(4-isobutoksyfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbetoksyamino-7-fenylsulfonyloksy-1H-2,1,4-benzotiadiazin, 3-karbopropoksyamino-7-fenylsulfonyloksy-lH-2,1,4-benzotiadiazin ,
3-karbisopropoksyamino-7-fenylsulfonyloksy-lH-2,1,4-benzotiadiazin ,
3-karbobutoksyamino-7-fenylsulfonyloksy-lH-2,1,4-benzotiadiazin, 3-karbisobutoksyamino-7-fenylsulfonyloksy-1H-2,1,4-benzotiadiazin,
3-karbo-t.butoksyamino-7-fenylsulfonyloksy-lH-2,1,4-benzotiadiazin,
3-karbetoksyamino-7-(3-trifluormetylfenylsulfonyloksy)-1H-211,4-benzotiadiazin,
3-karbisopropoksyamino-7-(3-trifluormetylfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin,
3-karbisobutoksyamino-7-(3-trifluormetylfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin.
Etter den omtalte fremgangsmåte fåes eksempelvis følgende 2-karbalkoksyamino-benzimidazolderivater: 2-karbometoksyamino-5-benzimidazol-sulfonsyrefenylester, 2-karbometoksyamino-5-benzimidazol-4-klorfenylester, 2-karbometoksyamino-5-benzimidazol-3-klorfenylester, 2-karbometoksyamino-5-benzimidazol-2-klorfenylester, 2-karbometoksyamino-5-benzimidazol-2,5-diklorfenylester, 2-karbometoksyamino-5-benzimidazol-3,5-diklorfenylester, 2-karbometoksyamino-5-benzimidazol-4-bromfenylester, 2-karbometoksyamino-5-benzimidazol-3-bromfenylester , 2-karbometoksyamino-5-benzimidazol-2-bromfenylester, 2-karbometoksyamino-5-benzimidazol-4-metylfenylester, 2-karbometoksyamino-5-benzimidazol-3-metylfenylester, 2-karbometoksyamino-5-benzimidazol-2-metylfenylester, 2-karbometoksyamino-5-benzimidazol-4-tert.butylfenylester, 2-karbometoksyamino-5-benzimidazol-2,4-dimetylfenylester, 2-karbometoksyamino-5-benzimidazol-2-klor-4-metylfenylester, 2-karbometoksyamino-5-benzimidazol-2-klor-6-metylfenylester, 2-karbometoksyamino-5-benzimidazol-3-klor-4-metylfenylester, 2-karbometoksyamino-5-benzimidazol-3-klor-6-metylfenylester, 2-karbometoksyamino-5-benzimidazol-3-klor-4-karbetoksyfenyl-ester ,
2-karbometoksyamino-5-benzimidazol-4-klor-2-metylfenylester, 2-karbometoksyamino-5-benzimidazol-4-klor-3-metylfenylester, 2-karbometoksyamino-5_benzimidazol-3-trifluormetylfenylester, 2-karbometoksyamino-5-benzimidazol-3,5-bistrifluormetylfenyl-ester ,
2-karbometoksyamino-5-benzimidazol-4-metoksyfenylester, 2-karbometoksyamino-5-benzimidazol-3-metoksyfenylester, 2-karbometoksyamino-5-benzimidazol-2-metoksyfenylester, 2-karbometoksyamino-5-benzimidazol-4-propoksyfenylester, 2-karbometoksyamino-5-benzimidazol-4-isopropoksyfenylester, 2-karbometoksyamino-5-benzimidazol-4-butoksyfenylester, 2-karbometoksyamino-5-benzimidazol-4-isobutoksyfenylester, 2-karbetoksyamino-5-benzimidazol-sulfonsyrefenylester, 2-karbopropoksyamino-5-benzimidazol-sulfonsyrefenylester, 2-karbisopropoksyamino-5-benzimidazol-sulfonsyrefenylester, 2-karbobutoksyamino-5-benzimidazol-sulfonsyrefenylester, 2-karbisobutoksyamino-5-benzimidazol-sulfonsyrefenylester , 2-karbo-tert.butoksyamino-5-benzimidazol-sulfonsyrefenylester, 2-karbometoksy-5(6)-fenylsulfonyloksy-benzimidazol, 2-karbometoksy-5(6)-(4-klor-fenylsulfonyloksy)-benzimidazol, 2-karbometoksy-5(6)-(3-klor-fenylsulfonyloksy)-benzimidazol, 2-karbometoksy-5(6)-(2-klor-fenylsulfonyloksy)-benzimidazol, 2-karbometoksy-5(6)-(2,5-diklor-fenylsulfonyloksy)-benzimidazol, 2-karbometoksy-5(6)-(3 ,5-diklor-fenylsulfonyloksy)-benzimidazol, 2-karbometoksyamino-5(6)-(3,4-diklor-fenylsulfonyloksy)-benzimidazol ,
2-karbometoksyamino-5(6)-(4-brom-fenylsulfonyloksy)-benzimidazol ,
2-karbometoksyamino-5(6)-(3-brom-fenylsulfonyloksy)-benzimidazol ,
2-karbometoksyamino-5(6)-(2-brom-fenylsulfonyloksy)-benzimidazol }
2-karbometoksyamino-5(6)-(4-metyl-fenylsulfonyloksy)-benzimidazol ,
2-karbometoksyamino-5(6)-(3-metyl-fenylsulfonyloksy)-benzimidazol ,
2-karbometoksyamino-5(6)-(2-metyl-fenylsulfonyloksy)-benzimidazol,
2-karbometoksyamino-5(6)-(4-tert.butyl-fenylsulfonyloksy)-benzimidazol ,
2-karbometoksyamino-5(6)-(2-klor-4-metylfenylsulfonyloksy)-benzimidazol,
2-karbometoksyamino-5(6)-(2-klor-6-metylfenylsulfonyloksy)-benzimidazol,
2-karbometoksyamino-5(6)-(3-klor-4-metyl-fenylsulfonyloksy)-benzimidazol,
2-karbometoksyamino-5(6) - (3-klor-6-metyl-fenylsulfonyloksy)-benzimidazol,
2-karbometoksyamino-5(6)-(4-klor-2-metyl-fenylsulfonyloksy)-benzimidazol,
2-karbometoksyamino-5(6)-(4-klor-3-metyl-fenylsulfonyloksy)-benzimidazol,
2-karbometoksyamino-5(6)-(4-klor- y,5-dimetylfenylsulfonyl)-benzimidazol,
2-karbometoksyamino-5(6)-(3-trifluormetylfenylsulfonyl)-benzimidazol,
2-karbometoksyamino-5(6)-(4-metoksyfenylsulfonyl)-benzimidazol, 2-karbometoksyamino-5(6)-(3-metoksyfenylsulfonyl)-benzimidazol, 2-karbometoksyamino-5(6)-(2-metoksyfenylsulfonyl)-benzimidazol, 2-karbomet oksyamino-5 ( 6 ) -.( 4-pr op oksy f enylsulf onyl) -benzimidazol, 2-karbometoksyamino-5(6)-(4-isopropoksy-fenylsulfonyl)-benzimidazol,
2-karbometoksyamino-5(6)-(4-butoksyfenylsulfonyl)-benzimidazol, 2-karbometoksyamino-5(6)-(4-isbutoksy-fenylsulfonyl)-benz-• imidazol,
2-karbetoksyamino-5(6)-fenylsulfonyloksy-benzimidazol, 2-karbopropoksyamino-5(6)-fenylsulfonyloksy-benzimidazol, 2-karbisopropoksyamino-5(6)-fenylsulfonyloksy-benzimidazol, 2-karbobut oksyamino-5 ( 6) - f enylsulf onyloksy-benz imidazol., 2-karbisobutoksyamino-5(6)-fenylsulfonyloksy-benzimidazol, 2-karbotert.butoksyamino-5(6)-fenylsulfonyloksy.-benzimidazol, 2-karbetoksyamino-5(6)-(3-trifluormetyl-fenylsulfonyloksy)-benzimidazol,
2-karbisopropoksyamino-5(6)-(3-trifluormetyl-fenylsulfonyl)-benzimidazol,
2-karbisbutoksyamino-5(6)-(2-trifluormetyl-fenylsulfonyl)-benzimidazol.
2-karbalkoksyamino-benzimidazol-derivatene ifølge oppfinnelsen er verdifulle kjemoterapeutika og egner seg til bekjempelse av parasitære sykdommer hos mennesker og dyr som fra Helminther og leverigle.
De er spesielt virksomme mot et stort antall helminter, f.. eks . Haemonchus, Trichostrohgylus, Ostertagia, Strongyloides, Cooperia, Chabertia, Oesophagostomum, Hyostron-gyluSjAnkylostomajAskaris og. Heterakis. Spesielt utpreget, er virkningen overfor magetarm-strongylider hvorav fremfor alt drøvtyggere angripes. Dyrenes angrep av disse parasitter fører til store økonomiske skader, hvorfor forbindelsen ifølge oppfinnelsen spesielt finner anvendelse i veterinærmidler.
De virksomme stoffer med formel (1) administreres alt,etter tilfellets stilling i doseringer mellom 0,5 og 50 mg pr. kg legemsv.ekt i 1 - 14 dager.
Til oral applikasjon kommer det. i betraktning
tabletter, drageer,kapsler, pulvere, granulater eller pastaer som inneholder de virksomme stoffer sammen med de vanlige hjelpe- og bærestoffer som stivelse, cellulosepulver, talkum, magnesiumstearat, sukker, gelatin, kalsiumkarbonat, finfordelt kiselsyre, karboksymetylcellulose eller lignende stoffer.
Til parenteral applikasjon kommer det i betraktning oppløsninger, f.eks. oljeaktige oppløsninger, som fremstilles under anvendelse av sesamolje, ricinusolje eller syntetiske trigly.cerider, eventuelt med en tilsetning av tokoferol som antioksydant og/eller under anvendelse av grenseflateaktive stoffer som sorbitanfettsyreester. Dertil kommer vandige suspensjoner i betraktning som fremstilles under anvendelse av etoksylerte sorbit.an-f ettsyreestere eventuelt under tilsetning av fortykningsmidler som polyetylenglykol eller karboksymetylcellulose .
Konsentrasjonen av de. virksomme stoffer ifølge oppfinnelsen i de dermed fremstilte preparater ligger fortrinnsvis for bruk som veterinærlegemidler mellom 22og 20 vekt-%,for
>
bruk som humant legemiddel, ligger konsentrasjonen av de virksomme stoffer fortrinnsvis mellom 20 og 80 vekt-%.
Fremgangsmåteproduktene er ikke bare utmerket virksomme oralt applisert, men virker også parenteralt i doseringer nedad inntil 2 mg/kg. Dermed er de sammenlignbare benzimidazol-.derivater spesielt sterkt overlegne overfor alle kjente 5(6)-substituerte 2-benzimidazol-karbaminater.
For å fastlegge virkningen av forbindelsen ifølge oppfinnelsen ble det gjennomført kjemoterapeutiske undersøkel-ser på ca. 30 kg tunge sauelam som eksperimentelt var blitt infisert med larver av Haemonchus contortus resp. av Trichostrongylus colubriformis. Forsøksdyrene ble holdt i fliselagte binger som daglig ble grundig renset. Etter forløp av prepatenstiden (tiden mellom infeksjon og kjønnsmodning av para-sittene med begynnende utskillelse av egg og larver) ble det i den modifiserte McMaster-fremgangsmåte ifølge Wetzel (Tier-årtzliche Umschau 6, 209-210 (1951)) bestemt eggtallet pr. gram avføring. Umiddelbart deretter ble det foretatt behandling av saugne (vanligvis 4-8 dyr pr. virksomt stoff, minst imidlertid 2). Dyrene ble applisert doseringen av fremgangsmåteproduktene som suspensjon i hver gang 10 ml av en 1 % ±g Tylose-suspensjon.
Hver gang på den 1. , 14 . og 28 dag etter behandling ble det igjen etter den ovenfor angitte fremgangsmåte fastslått eggtall pr. gram avføring, og dets prosentuelle nedgang bereg-net sammenlignet til utgangsverdien før behandlingen.
Nedenstående tabell gir resultatene av'disse
forsøk. Som virkning ble det angitt den prosentuelle nedgang av eggtall i avføringen.
Eksempel 1
Man oppvarmer en blanding av 5,0 g 3-karbometoksyamino-7-(lH-2,l,4-benzotiadiazin)-sulfonsyrefenylester og 7,5 g trifenylfosfin i 600 ml kloroform i 3 timer under tilbakeløp. Deretter inndamper man oppløsningen sterkt og frafiltrerer den dannede utfelling. Etter utvasking og tørking får man som utbytte 332 g 2-karbometoksyamino-5(6)-benzimidazolsulfonsyre-fenylester av sm.p. 242°C under spaltning.
Analogt vil man under anvendelse av de hver gang ekvivalente mengder av det tilsvarende 3-karbalkoksyamino-lH-2j1,4-benzotiadiazinderivat i gode utbytter^
2) av 3-karbometoksyamino-7-(lH-2,lJ4-benzotiadiazin)-sulfonsyre-4-klorfenylester, få: 2-karbometoksyamino-5(6)-benzimidazol-sulfonsyre-4-klorfenylester med sm.p. 250°C (under spaltning) 3) av 3-karbometoksyamino-7-(lH-2,l,4-benzotiadiazin)-sulfonsyre-3-klorfenylester få: 2- karbometoksyamino-5(6)-benzimidazol-sulfonsyre-3- klorfenylester med sm.p. 234°C (under spaltning)-4) av 3-karbometoksyamino-7-(lH-2,l,4-benzotiadiazin)-sulfonsyre-3j5-diklorfenylester få: 2-karbometoksyamino-5(6)-benzimidazolsulfonsyre-3,5-diklorfenylester med sm.p. 250°C (under
spaltning)
5) av 3-karbometoksyamino-7-(lH-2,134-benzotiadiazin)-sulfonsyre-3-brom-fenylester få: 2-karbometoksyamino-5(6)-benzimidazolsulfonsyre-3-bromfenylester med sm.p. 242°C (under spaltning) 6) av 3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-metylfenylester få: 2-karbometoksyamino-5(6)-benzimidazolsulfonsyre-4- metylfenylester med smp. 240°C (under spaltning) 7) av 3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-3-metylfenylester få: 2-karbometoksyamino-5(6)-benzimidazol-sulfonsyre-3-metylfenylester med sm.p. 234°C (under spaltning) 8) av 3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)-sulfonsyre-4-metoksyfenylester få: 2-karbometoksyamino-5(6)-benzimidazolsulfonsyre-4-metoksyfenylester med sm.p. 228°C (under spaltning) 9) av 3-karbometoksyamino-7-(lH-2,lJ4-benzotiadiazin)-sulfonsyre-3-metoksyfenylester få: 2-karbornetoksyamino-5(6)-benzimidazolsulfonsyre-3~ metoksyfenylester med sm.p. 227°C (under spaltning) 10) av 3-karbometoksyamino-7_(1H-2,1,4-benzotiadiazin)-sulfon-~syre-3-etoksyfenylester få: 2-karbometoksyamino-5(6)-benzimidazol-sulfonsyre-3-etoksyfenylester med smp. 212°C (under spaltning) 11) av 3-karbometoksyamino-7-(1H-2,1,4-benzotiadiazin)sulfonsyre-3-cyanofenylester få: 2-karbometoksyamino-5(6)-benzimidazol-sulfonsyre-3-cyanofenylester med sm.p. 265°C (under spaltning) 12) av 3-karbometoksyamino-7-(lH-2jl34-benzotiadiazin)-sulfonsyre-3-trifluormetylfenylester få: 2-karbometoksyamino-5(6)-benzimidazol-sulfonsyre-3-trifluormetylfenylester med smp. 250°C (under spaltning) 13) av 3-karbometoksyamino-7-fenylsulfonyloksy-lH-2,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-fenylsulfonyloksybenzimi-dazol med sm.p. 242°C (under spaltning) 14) av 3-karbometoksyamino-7-(4-klorfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(4-klorfenylsulfonyloksy)-benzimidazol med smp. 230°C (under' spaltning) 15) av 3-karbometoksyamino-7-(3-klor-fenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(3-klorfenylsulfonyloksy)-benzimidazol .med smp. 250°C (under spaltning) 16) av 3-karbometoksyamino-7-(3,4-diklorfenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(3,4-diklorfenylsulfonyl-oksy ) -benzimidazol med smp. 255°C (under spaltning) 17) av 3-karbometoksyamino-7-(3,5-diklor-fenylsulfonyloksy)-1H-2,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(3,5-diklorfenylsulfonyl-oksy ) -benzimidazol med smp. 280°C (under- spaltning) 18) av 3-karbometoksyamino-7-(3-brom-fenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(3-brom-feny1sulfonyloksy)-benzimidazol med smp. 242°C (under spaltning) 19) av 3-karbometoksyamino-7-(4-metylfenylsulfonyloksy)-lH-2 ,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(4-metylfenylsulfonyloksy)-benzimidazol med smp. 237°C (under spaltning) 20) av 3_karbometoksyamino-7-(3-metyl-fenylsulfonyloksy)-1H-2 ,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(3-metylfenylsulfonyloksy)-benzimidazol med smp. 250°C (under spaltning)
21) av 3-karbometoksyamino-7-(3-trifluormetyl-fenylsulfonyl-
o oksy)-1H-2,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(3-trifluormetylfenyl-sulf onyloksy ) -benzimidazol med smp. 215°C (under
spaltning)
22) av 3-karbetoksyamino-7-(3-trifluormetylfenylsulfonyloksy)-1H-2,1,4-benzotiadiazin få: 2-karbetoksyamino-5(6)-(3-trifluormetylfenylsulfo-nyloksy)-benzimidazol med smp. 227°C (under spaltning) 23) av 3-karbisopropoksyamino-7-(3-trifluormetylfenylsulfo-nyloksy)-lH-2,1,4-benzotiadiazin få: 2-karbisopropoksyamino-5 ( 6!) - ( 3-trif luormetylf enylsulf onyloksy)-benzimidazol med smp. 205°C (under
spaltning)
24) av 3_karbisobutoksyamino-7-(3-trifluormetylfenylsulfonyl-oksy )-1H-2,1,4-benzotiadiazin få: 2-karbisbutoksyamino-5(6)-(3-trifluormetylfenyl-sulf onyloksy ) -benzimidazol med. smp. 243°C (under
spaltning)
25) av 3-karbometoksyamino-7-(3-cyano-fenylsulfonyloksy)-1H-2,1,4-benzotiadiazin få: 2-karbometoksyamino-5(6)-(3-cyano-fenylsulfonyloksy)-benzimidazol med smp. 275°C (under spaltning).
Claims (1)
- Fremgangsmåte til fremstilling av 2-karbalkoksy-aminobenzimidazol-derivater med formel (1):hvori R^ betyr alkyl med. 1-4 C-atomer, R2 og R^ betyr hver uavhengig av hverandre, hydrogen, alkoksy med 1-4 C-atomer, halogen, trifluormetyl, alkyl med 1-4 C-atomer eller CN og X betyr grupperingen -0-S02~ eller -S02 -0-, karakterisert ved at en 2,1,4-benzotiadiazinderivat med formel (2):hvori R-^ til R^ og X har samme betydning som angitt ovenfor og R^ betyr hydrogen, en acetyl- eller benzoylrest og n betyr 0 eller 1, behandles med en syre eller trifenylfosfin eller, når R^ betyr acetyl- eller benzoylresten, behandles med en base.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752541751 DE2541751A1 (de) | 1975-09-19 | 1975-09-19 | Anthelminthisch wirksame 2-carbalkoxyamino-benzimidazolderivate und verfahren zu ihrer herstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
NO763197L true NO763197L (no) | 1977-03-22 |
Family
ID=5956861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO763197A NO763197L (no) | 1975-09-19 | 1976-09-17 | Fremgangsm}te til fremstilling av antelmintisk virksomme 2-karbalkoksyamino-benzimidazolderivater. |
Country Status (16)
Country | Link |
---|---|
AT (1) | AT356651B (no) |
CA (1) | CA1069908A (no) |
CH (1) | CH605822A5 (no) |
DE (1) | DE2541751A1 (no) |
DK (1) | DK419976A (no) |
EG (1) | EG12507A (no) |
ES (1) | ES451512A1 (no) |
FI (1) | FI762654A (no) |
GR (1) | GR70297B (no) |
HU (1) | HU172248B (no) |
LU (1) | LU75816A1 (no) |
MX (1) | MX3567E (no) |
NL (1) | NL7610191A (no) |
NO (1) | NO763197L (no) |
PT (1) | PT65608B (no) |
SE (1) | SE7610311L (no) |
-
1975
- 1975-09-19 DE DE19752541751 patent/DE2541751A1/de active Pending
-
1976
- 1976-09-11 EG EG76551A patent/EG12507A/xx active
- 1976-09-14 ES ES451512A patent/ES451512A1/es not_active Expired
- 1976-09-14 MX MX764928U patent/MX3567E/es unknown
- 1976-09-14 NL NL7610191A patent/NL7610191A/xx not_active Application Discontinuation
- 1976-09-16 HU HU76HO00001928A patent/HU172248B/hu unknown
- 1976-09-16 LU LU75816A patent/LU75816A1/xx unknown
- 1976-09-16 SE SE7610311A patent/SE7610311L/xx unknown
- 1976-09-16 FI FI762654A patent/FI762654A/fi not_active Application Discontinuation
- 1976-09-17 DK DK419976A patent/DK419976A/da not_active Application Discontinuation
- 1976-09-17 NO NO763197A patent/NO763197L/no unknown
- 1976-09-17 AT AT690976A patent/AT356651B/de not_active IP Right Cessation
- 1976-09-17 CA CA261,424A patent/CA1069908A/en not_active Expired
- 1976-09-17 CH CH1182276A patent/CH605822A5/xx not_active IP Right Cessation
- 1976-09-17 PT PT65608A patent/PT65608B/pt unknown
- 1976-09-18 GR GR51722A patent/GR70297B/el unknown
Also Published As
Publication number | Publication date |
---|---|
FI762654A (no) | 1977-03-20 |
CA1069908A (en) | 1980-01-15 |
GR70297B (no) | 1982-09-06 |
ES451512A1 (es) | 1977-12-16 |
NL7610191A (nl) | 1977-03-22 |
PT65608A (de) | 1976-10-01 |
DK419976A (da) | 1977-03-20 |
HU172248B (hu) | 1978-07-28 |
SE7610311L (sv) | 1977-03-20 |
ATA690976A (de) | 1979-10-15 |
CH605822A5 (no) | 1978-10-13 |
LU75816A1 (no) | 1977-05-13 |
EG12507A (en) | 1978-12-31 |
MX3567E (es) | 1981-03-13 |
PT65608B (de) | 1978-05-10 |
AT356651B (de) | 1980-05-12 |
DE2541751A1 (de) | 1977-03-24 |
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