CH478826A - Process for the production of new furazan derivatives - Google Patents
Process for the production of new furazan derivativesInfo
- Publication number
- CH478826A CH478826A CH1224569A CH1224569A CH478826A CH 478826 A CH478826 A CH 478826A CH 1224569 A CH1224569 A CH 1224569A CH 1224569 A CH1224569 A CH 1224569A CH 478826 A CH478826 A CH 478826A
- Authority
- CH
- Switzerland
- Prior art keywords
- general formula
- compounds
- new
- xylyl
- hydrogen
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- JKFAIQOWCVVSKC-UHFFFAOYSA-N furazan Chemical class C=1C=NON=1 JKFAIQOWCVVSKC-UHFFFAOYSA-N 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 150000001735 carboxylic acids Chemical class 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 8
- -1 Cocoa butter Chemical class 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- 239000004480 active ingredient Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000000725 suspension Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- HJUUDZMTOBNFHQ-UHFFFAOYSA-N 4-(3,4-dimethylphenyl)-1,2,5-oxadiazol-3-amine Chemical compound C1=C(C)C(C)=CC=C1C1=NON=C1N HJUUDZMTOBNFHQ-UHFFFAOYSA-N 0.000 description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- 229920001592 potato starch Polymers 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- UGOHQEPUAHUSFV-UHFFFAOYSA-N 2-(3,4-dimethylphenyl)-N'-hydroxy-2-hydroxyiminoethanimidamide Chemical compound C1(=CC(=C(C=C1)C)C)C(C(=NO)N)=NO UGOHQEPUAHUSFV-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- YBGHEKXZDLWHNF-UHFFFAOYSA-N N-[1-(3,4-dimethylphenyl)-2-hydroxyiminoethylidene]hydroxylamine Chemical compound C1(=CC(=C(C=C1)C)C)C(=NO)C=NO YBGHEKXZDLWHNF-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 2
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 2
- 239000002552 dosage form Substances 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002511 suppository base Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- MLXJSLOEWNSWKU-BXXMFMFASA-N (NE)-N-[(2E)-2-hydroxyimino-1-phenylethylidene]hydroxylamine Chemical compound [H]\C(=N/O)\C(=N\O)\C1=CC=CC=C1 MLXJSLOEWNSWKU-BXXMFMFASA-N 0.000 description 1
- AFSHUZFNMVJNKX-LLWMBOQKSA-N 1,2-dioleoyl-sn-glycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](CO)OC(=O)CCCCCCC\C=C/CCCCCCCC AFSHUZFNMVJNKX-LLWMBOQKSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- AOFNRDQIWVQGER-UHFFFAOYSA-N 1-(3,4-dimethylphenyl)-2-hydroxyiminoethanone Chemical compound CC1=CC=C(C(=O)C=NO)C=C1C AOFNRDQIWVQGER-UHFFFAOYSA-N 0.000 description 1
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- BBPQRMCWYRTLGJ-UHFFFAOYSA-N 2-(3,4-dimethylphenyl)-2-hydroxyiminoacetonitrile oxide Chemical compound C1(=CC(=C(C=C1)C)C)C(C#[N+][O-])=NO BBPQRMCWYRTLGJ-UHFFFAOYSA-N 0.000 description 1
- FCVQWDOQFWTHET-UHFFFAOYSA-N 2-hydroxyimino-2-phenylacetamide Chemical compound NC(=O)C(=NO)C1=CC=CC=C1 FCVQWDOQFWTHET-UHFFFAOYSA-N 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229920000945 Amylopectin Polymers 0.000 description 1
- 206010006811 Bursitis Diseases 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- SQUHHTBVTRBESD-UHFFFAOYSA-N Hexa-Ac-myo-Inositol Natural products CC(=O)OC1C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O SQUHHTBVTRBESD-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 208000018650 Intervertebral disc disease Diseases 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 241001466453 Laminaria Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 206010052904 Musculoskeletal stiffness Diseases 0.000 description 1
- 201000002481 Myositis Diseases 0.000 description 1
- FARFIAJORVWDPE-UHFFFAOYSA-N N-hydroxy-2-hydroxyimino-2-phenylethanimidoyl chloride Chemical class ClC(C(=NO)C1=CC=CC=C1)=NO FARFIAJORVWDPE-UHFFFAOYSA-N 0.000 description 1
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- 201000002661 Spondylitis Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 206010044074 Torticollis Diseases 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- HOPRXXXSABQWAV-UHFFFAOYSA-N anhydrous collidine Natural products CC1=CC=NC(C)=C1C HOPRXXXSABQWAV-UHFFFAOYSA-N 0.000 description 1
- 230000001773 anti-convulsant effect Effects 0.000 description 1
- 239000001961 anticonvulsive agent Substances 0.000 description 1
- 229960003965 antiepileptics Drugs 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- 239000003613 bile acid Substances 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229940099352 cholate Drugs 0.000 description 1
- BHQCQFFYRZLCQQ-OELDTZBJSA-N cholic acid Chemical compound C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 BHQCQFFYRZLCQQ-OELDTZBJSA-N 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229940110456 cocoa butter Drugs 0.000 description 1
- 235000019868 cocoa butter Nutrition 0.000 description 1
- UTBIMNXEDGNJFE-UHFFFAOYSA-N collidine Natural products CC1=CC=C(C)C(C)=N1 UTBIMNXEDGNJFE-UHFFFAOYSA-N 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229940009976 deoxycholate Drugs 0.000 description 1
- KXGVEGMKQFWNSR-LLQZFEROSA-N deoxycholic acid Chemical compound C([C@H]1CC2)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 KXGVEGMKQFWNSR-LLQZFEROSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229940031098 ethanolamine Drugs 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 208000018197 inherited torticollis Diseases 0.000 description 1
- CDAISMWEOUEBRE-GPIVLXJGSA-N inositol Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@@H]1O CDAISMWEOUEBRE-GPIVLXJGSA-N 0.000 description 1
- 229960000367 inositol Drugs 0.000 description 1
- 239000000543 intermediate Substances 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
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Substances [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003158 myorelaxant agent Substances 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 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
- 239000003791 organic solvent mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- LEVJVKGPFAQPOI-UHFFFAOYSA-N phenylmethanone Chemical compound O=[C]C1=CC=CC=C1 LEVJVKGPFAQPOI-UHFFFAOYSA-N 0.000 description 1
- 239000008389 polyethoxylated castor oil Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical class CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 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
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- FKJIJBSJQSMPTI-CAOXKPNISA-M sodium;(4r)-4-[(5s,8r,9s,10s,13r,14s,17r)-10,13-dimethyl-3,7,12-trioxo-1,2,4,5,6,8,9,11,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]pentanoate Chemical compound [Na+].C1CC(=O)C[C@H]2CC(=O)[C@H]3[C@@H]4CC[C@H]([C@@H](CCC([O-])=O)C)[C@@]4(C)C(=O)C[C@@H]3[C@]21C FKJIJBSJQSMPTI-CAOXKPNISA-M 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- GFYHSKONPJXCDE-UHFFFAOYSA-N sym-collidine Natural products CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D271/00—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
- C07D271/02—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms not condensed with other rings
- C07D271/08—1,2,5-Oxadiazoles; Hydrogenated 1,2,5-oxadiazoles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C259/00—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups
- C07C259/12—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups with replacement of the other oxygen atom of the carboxyl group by nitrogen atoms, e.g. N-hydroxyamidines
- C07C259/18—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups with replacement of the other oxygen atom of the carboxyl group by nitrogen atoms, e.g. N-hydroxyamidines having carbon atoms of hydroxamidine groups bound to carbon atoms of six-membered aromatic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Description
Verfahren zur Herstellung von neuen Furazanderivaten
Die Erfindung betrifft ein Verfahren zur Herstellung von neuen Furazanderivaten.
Verbindungen der allgemeinen Formel I,
EMI1.1
in welcher R1 Wasserstoff oder eine niedere Alkylgruppe und R2 eine niedere Alkylgruppe, welche die o- oder m-Stellung einnimmt, bedeutet, sind bisher nicht bekanntgeworden.
Wie nun gefunden wurde, besitzen diese Verbindungen wertvolle pharmakologische Eigenschaften. Sie wirken zentraldämpfend, antikonvulsiv und muskelrelaxierend.
Die neuen Verbindungen der allgemeinen Formel I können zur Beruhigung von schwachen Erregungszuständen und zur Behebung der Muskelsteife, z. B. bei rheumatischen Erkrankungen, Fibrosftis, Bursitis, Myositis, Spondylitis, Discopathien und Torticollis, verwendet werden.
In den Verbindungen der allgemeinen Formel I können R1 und R2 als niedere Alkylgruppen beispielsweise die Methyl-, Athyl-, Propyl-, Isopropyl-, Butyl-, Isobutyl-, sek. Butyl-, tert. Butyl-, Pentyl-, Isopentyloder die 2,2-Dimethylpropylgruppen sein, R1 kann die o-, oder p-Stellung einnehmen.
Zur erfindungsgemässen Herstellung der Verbindungen der allgemeinen Formel I setzt man eine Verbindung der allgemeinen Formel II,
EMI1.2
in welcher X1, X2 und Xl Wasserstoff oder Acylreste einer organischen Säure, und R1 sowie R2 die unter Formel I angegebene Bedeutung haben, cyclisiert und Verbindungen, in denen X1, Xe und XQ Acylreste bedeuten, gleichzeitig hydrolysiert.
X1, X2 und X3 können je als Acylrest einer Carbonsäure z. B. den Acetyl- oder Benzoylrest sein. Die Umsetzung wird vorzugsweise in einem Lösungsmittel und in Gegenwart eines Kondensationsmittels vorgenommen.
Falls X1 und/oder X2 je den Acylrest einer Carbonsäure sind bzw. ein Acylrest ist und Xg ein Wasserstoffatom oder der Acylrest einer Carbonsäure ist, eignen sich als Kondensationsmittel insbesondere Alkalimetallhydroxyde, wie Natrium- oder Kaliumhydroxyd, ferner Erdalkalimetallhydroxyde, wie Calcium- oder Bariumhydroxyd oder Carbonate, die den genannten Alkalihydroxyden entsprechen. Diese Kondensationsmittel werden zweckmässig in einem hydroxylgruppenhaltigen Lösungsmittel eingesetzt, z. B. in Wasser, oder in einem niederen Alkohol, wie z. B. Methanol oder Athanol.
Ein weiteres Kondensationsmittel, welches eingesetzt werden kann, ist Phosphoroxychlorid. Man verwendet es vorzugsweise, wenn X1, X2 und Xl Wasserstoffatome sind.
Eine Gruppe von Ausgangsstoffen der Formel II erhält man beispielsweise wie folgt: Man geht von Phenylglyoxim aus, das im Benzolring durch die Reste R1 und R2 substituiert ist, und setzt dieses mit Chlor in Eisessig zu einem entsprechenden Phenyl-chlor-glyoximderivat um, das mit Benzoylchlorid in abs. Benzol das entsprechende O'-Benzoyl- 1 -chlor-2-phenyl-glyoxim- derivat liefert; die erhaltene l-Chlor-verbindung wird mit 6-n Ammoniak unter Abspaltung von Chlorwasserstoff in das O-Benzoyloxim des Phenylglyoxylamid oxims übergeführt, welches im Benzolring durch die Reste R1 und R2 substituiert ist.
Die neuen Wirkstoffe können peroral, rektal oder parenteral verabreicht werden. Die täglichen Dosen bewegen sich zwischen 50-6000 mg.
Doseneinheitsformen für die perorale Anwendung enthalten als Wirkstoff vorzugsweise zwischen 60-90 % einer Verbindung der allgemeinen Formel I. Zu ihrer Herstellung kombiniert man den Wirkstoff z.B. mit festen, pulverförmigen Trägerstoffen, wie Lactose, Saccharose, Sorbit, Mannit; Stärken, wie Kartoffelstärke, Maisstärke oder Amylopektin, ferner Laminariapulver oder Citruspulpenpulver; Cellulosederivaten oder Gelatine, gegebenenfalls unter Zusatz von Gleitmitteln, wie Magnesium- oder Calciumstearat oder Polyäthylenglykolen von geeigneten Molekulargewichten zu Tabletten oder zu Dragee-Kernen.
Letztere überzieht man beispielsweise mit konzentrierten Zuckerlösungen, welche z.B. noch arabischen Gummi, Talk und/oder Titandioxyd enthalten können, oder mit einem in leichtflüchtigen organischen Lösungsmitteln oder Lösungsmittelgemischen gelösten Lack. Diesen Überzügen können Farbstoffe zugefügt werden, z.B. zur Kennzeichnung verschiedener Wirkstoffdosen.
Als Doseneinheitsform für die rektale Anwendung kommen z.B. Suppositorien in Betracht, welche aus einer Kombination des Wirkstoffes mit einer Suppositoriengrundmasse bestehen. Geeignete Suppositoriengrundmassen sind natürliche oder synthetische Triglyceride, z.B. Kakaobutter, ferner Polyäthylenglykole, z. B. Carbowax von geeignetem Molekulargewicht, oder höhere Fettalkohole.
Doseneinheitsformen für die parenterale Verwendung enthalten zweckmässig 1-10 % Wirksubstanz, Wasser sowie einen Lösungsvermittler oder Emulgator. Als Lösungsvermittler oder Emulgatoren können beispielsweise folgende Verbindungen verwendet werden: Propylenglykol, Natriumbenzoat oder das Natriumsalz einer Hydroxybenzoesäure, wasserlösliche Salze von Gallensäuren, wie Natrium-dehydrocholat, Morpholin-desoxycholat, Äthanolamincholat, Inositphosphatid- und ölarme Lecithinpräparate, gegebenenfalls mit partiellen Glyceriden von höheren Fettsäuren, wie Mono- oder Diolein, und/oder deren Polyoxyäthylenderivate. Besonders geeignet ist eine Dispersion von 1-5 % Wirkstoff, 10-25 % Polyoxyäthylenderivat der Ricinolsäure oder ihrer Glyceride, z.B. das Handelsprodukt Cremophor ELF.
Die folgende Vorschrift soll die Herstellung von Tabletten näher erläutern:
50,000 kg 3-Amino-4-(3 ,4-xylyl)-furazan werden mit 2,000 kg getrockneter Kartoffelstärke vermischt.
Die erhaltene Masse wird mit 1,200 kg Stearinsäure in 4 Liter Äthanol befeuchtet und während 15 Minuten gemischt. Dann fügt man 1,200 kg Gelatine in 16 Liter destilliertem Wasser zu und knetet die Masse während 20 Minuten. Sobald sie genügend feucht ist, wird sie durch ein Sieb granuliert (25 Maschen/cm2) und getrocknet. Die getrockneten Granulate werden erneut gesiebt (60 Maschen/cm2 und anschliessend mit 4,000 kg Kartoffelstärke, 1,200 kg Talk und 0,400 kg Natriumcarboxymethylcellulose während einer Stunde gemischt.
Die erhaltene Masse wird zu 100 000 Tabletten von je 600 mg gepresst, von denen jede 500 mg aktive Substanz enthält.
Die nachfolgenden Beispiele erläutern die Herstellung der neuen Verbindungen der allgemeinen Formel I und von bisher nicht beschriebenen Zwischenprodukten näher, sollen jedoch den Umfang der Erfindung in keiner Weise beschränken. Die Temperaturen sind in Celsiusgraden angegeben.
Beispiel I
Man suspendiert 0,35 g a-(3 ,4-Xylyl)-a-benzoyl-ss- benzoylamino-glyoxim in 10 ml 20 % iger wässeriger Natronlauge. Das Gemisch wird unter Rühren im Wasserbad während 5-10 Minuten auf etwa 800 erwärmt.
Das Produkt schwimmt zuerst an der Oberfläche der Flüssigkeit und geht dann im Verlaufe der Reaktion in Suspension. Nach Abkühlen extrahiert man das Produkt mit Äther. Die organische Phase wird getrocknet, filtriert, eingedampft. Der Rückstand wird in Isopropa nol umkristallisiert. Man erhält so reines 3-Amino-4 (3,4-xylyl)-furazan vom Smp. 109-112 .
Das Ausgangsmaterial wird wie folgt erhalten:
Man löst 0,58 g (3,4-Xylyl)-amino-glyoxim (a-Isomer) in einem Gemisch von 10 ml Dioxan puriss und 1,35 g Kollidin. Dann versetzt man die Lösung in der Kälte mit 1,57 g Benzoylchlorid und man lässt das Gemisch 4 Stunden stehen. Dann verdünnt man mit Wasser und Chloroform. Die organische Phase wird mit Wasser gewaschen, mit Natriumsulfat getrocknet, filtriert und eingedampft. Das rohe Dibenzoat wird in Aceton und Benzol umkristallisiert, Smp. 196-198 .
Beispiel 2
Man suspendiert 0,5 g a-(3,4-Xylyl)-a-acetyl-p-acet- aminoglyoxim in 20 ml 20 % iger wässeriger Natronlauge. Diese Suspension wird 1/2 Stunde am Rückfluss erhitzt, wobei die Kristalle zu einem Öl zerfliessen.
Nach dem Abkühlen kristallisiert das Ö1. Die Kristalle werden mit Äther extrahiert. Die organische Phase wird mit Wasser gewaschen, mit Natriumsulfat getrocknet und eingedampft. Man erhält so das 3-Amino-4 (3,4-xylyl)-furazan vom Smp. 111-113 0.
Das Ausgangsmaterial wird wie folgt hergestellt: a) Eine Lösung von 72 g rohem Natriumsalz des (3,4-Xylyl)-glyoxal-aldoxims [M. Furukawa, T. Ueda, Chem. Pharm. Bull. (Tokio) 8, (1960) 867] in 200 ml Eiswasser wird mit 300 ml Alkohol und 27,0 g Hy droxylamin-hydrochlorid versetzt. Die erhaltene Suspension wird über Nacht gerührt. Es bildet sich eine Lösung, die mit Aktivkohle entfärbt wird. Man dampft den Alkohol ab und verdünnt den Rückstand mit Wasser. Das ausgefallene Produkt wird abfiltriert, mit Wasser gewaschen, getrocknet und in 100 ml Chloroform aufgeschlämmt. Man kocht diese Suspension 10 Minuten am Rückfluss, kühlt ab und filtriert das Produkt, das noch mit ein wenig kaltem Chloroform gewaschen wird.
Man erhält so (3,4-Xylyl)-glyoxim vom Smp. 164 bis 1650 als farblose Kristalle. b) Zu einer Suspension von 18,5 g (3,4-Xylyl)glyoxim in 160 ml absolutem Äther gibt man eine Lösung von 9,6 g flüssigem Distickstoff-tetroxyd in 50 ml absolutem Äther. Die erhaltene Lösung wird 10 Minuten im Eisbad, dann noch eine halbe Stunde bei Raumtemperatur gerührt. Dann wird sie zur Trokkene eingedampft und der Rückstand mit etwas Äther gewaschen.
Man erhält so (3,4-Xylyl)-glyoxylonitril- oxyd-oxim vom Smp. 77-780. c) Eine Lösung von 8,8 g (3,4-Xylyl)-glyoxylnkril- oxyd-oxim in 330 ml Ather wird auf 0-5 gekühlt und bei dieser Temperatur unter Rühren innert 10 Minuten mit 11,3 ml konzentrierter, wässeriger Ammoniaklösung versetzt. Die erhaltene gelbliche Emulsion wird bei Raumtemperatur 16 Stunden gerührt. Dann wird sie unter Kühlung mit Eiswasser mit 6n Salzsäure sauer gestellt. Die saure, wässerige Phase wird abgetrennt, mit Äther gewaschen, mit wennig Aktivkohle gereinigt und filtriert. Das farblose Filtrat wird mit festem Natriumbicarbonat sorgfältig neutralisiert. Ein farbloses, kristallines Produkt fällt aus.
Es wird abfiltriert, mit Wasser gewaschen und im Vakuum bei 40C getrocknet.
Man erhält (3 ,4-Xylyl)-amino-glyoxim (a-Isomer) vom Smp. 1521540. Dieses Produkt ist fast farblos und praktisch rein.
Man suspendiert 1 g a-(3,4-Xylyl)-amino-glyoxim in 10 ml Acetanhydrid und rührt bei Raumtemperatur 2 Stunden. Das Gemisch wird dann zur Trockene eingedampft und der Rückstand in Isopropanol umkristallisiert. Man erhält das a-(3, 4-Xylyl)-a-acetyl-ss- acetamino-glyoxim vom Smp. 159-1610.
Process for the production of new furazan derivatives
The invention relates to a process for the preparation of new furazan derivatives.
Compounds of general formula I,
EMI1.1
in which R1 is hydrogen or a lower alkyl group and R2 is a lower alkyl group which is in the o- or m-position, have not yet become known.
As has now been found, these compounds have valuable pharmacological properties. They have a central damping, anticonvulsant and muscle relaxant effect.
The new compounds of general formula I can be used to calm weak states of excitement and to relieve muscle stiffness, e.g. B. in rheumatic diseases, fibrosftis, bursitis, myositis, spondylitis, discopathies and torticollis.
In the compounds of the general formula I, R1 and R2 can be used as lower alkyl groups, for example methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec. Butyl, tert. Butyl, pentyl, isopentyl or the 2,2-dimethylpropyl groups, R1 can be in the o- or p-position.
For the preparation according to the invention of the compounds of general formula I, a compound of general formula II is used
EMI1.2
in which X1, X2 and Xl are hydrogen or acyl radicals of an organic acid, and R1 and R2 have the meaning given under formula I, cyclized and compounds in which X1, Xe and XQ are acyl radicals, hydrolyzed at the same time.
X1, X2 and X3 can each be used as an acyl radical of a carboxylic acid z. B. be the acetyl or benzoyl radical. The reaction is preferably carried out in a solvent and in the presence of a condensing agent.
If X1 and / or X2 are each the acyl radical of a carboxylic acid or is an acyl radical and Xg is a hydrogen atom or the acyl radical of a carboxylic acid, suitable condensing agents are in particular alkali metal hydroxides, such as sodium or potassium hydroxide, and also alkaline earth metal hydroxides, such as calcium or barium hydroxide or Carbonates, which correspond to the alkali hydroxides mentioned. These condensing agents are expediently used in a hydroxyl-containing solvent, e.g. B. in water, or in a lower alcohol, such as. B. methanol or ethanol.
Another condensing agent that can be used is phosphorus oxychloride. It is preferably used when X1, X2 and X1 are hydrogen atoms.
A group of starting materials of the formula II is obtained, for example, as follows: One starts with phenylglyoxime, which is substituted in the benzene ring by the radicals R1 and R2, and reacts this with chlorine in glacial acetic acid to form a corresponding phenyl-chloro-glyoxime derivative, which with Benzoyl chloride in abs. Benzene provides the corresponding O'-benzoyl-1-chloro-2-phenyl-glyoxime derivative; the l-chlorine compound obtained is converted with 6-n ammonia with elimination of hydrogen chloride into the O-benzoyloxime of the phenylglyoxylamide oxime, which is substituted in the benzene ring by the radicals R1 and R2.
The new active ingredients can be administered orally, rectally or parenterally. The daily doses range between 50-6000 mg.
Unit dosage forms for oral use preferably contain between 60-90% of a compound of the general formula I as active ingredient. For their preparation, the active ingredient is combined, e.g. with solid, powdery carriers such as lactose, sucrose, sorbitol, mannitol; Starches, such as potato starch, corn starch or amylopectin, also laminaria powder or citrus pulp powder; Cellulose derivatives or gelatine, optionally with the addition of lubricants, such as magnesium or calcium stearate or polyethylene glycols of suitable molecular weights, for tablets or for coated tablets.
The latter is coated, for example, with concentrated sugar solutions, which e.g. Arab gum, talc and / or titanium dioxide, or with a paint dissolved in volatile organic solvents or solvent mixtures. Dyes can be added to these coatings, e.g. for labeling different doses of active ingredients.
As a unit dose form for rectal use, e.g. Consider suppositories, which consist of a combination of the active ingredient with a suppository base. Suitable suppository bases are natural or synthetic triglycerides, e.g. Cocoa butter, also polyethylene glycols, z. B. Carbowax of suitable molecular weight, or higher fatty alcohols.
Unit dosage forms for parenteral use expediently contain 1-10% active substance, water and a solubilizer or emulsifier. The following compounds, for example, can be used as solubilizers or emulsifiers: propylene glycol, sodium benzoate or the sodium salt of a hydroxybenzoic acid, water-soluble salts of bile acids, such as sodium dehydrocholate, morpholine deoxycholate, ethanol amine cholate, inositol phosphatide and low-oil lecithin with partial fatty acids, optionally such as mono- or diolein, and / or their polyoxyethylene derivatives. A dispersion of 1-5% active ingredient, 10-25% polyoxyethylene derivative of ricinoleic acid or its glycerides, e.g. the commercial product Cremophor ELF.
The following regulation is intended to explain the manufacture of tablets in more detail:
50,000 kg of 3-amino-4- (3, 4-xylyl) furazan are mixed with 2,000 kg of dried potato starch.
The mass obtained is moistened with 1.200 kg of stearic acid in 4 liters of ethanol and mixed for 15 minutes. Then 1.200 kg of gelatin in 16 liters of distilled water are added and the mass is kneaded for 20 minutes. As soon as it is sufficiently moist, it is granulated through a sieve (25 meshes / cm2) and dried. The dried granules are sieved again (60 meshes / cm2 and then mixed with 4.000 kg potato starch, 1.200 kg talc and 0.400 kg sodium carboxymethyl cellulose for one hour.
The resulting mass is compressed into 100,000 tablets of 600 mg each, each containing 500 mg of active substance.
The following examples explain the preparation of the new compounds of general formula I and of intermediates not previously described, but are not intended to restrict the scope of the invention in any way. The temperatures are given in degrees Celsius.
Example I.
0.35 g of a- (3,4-xylyl) -a-benzoyl-ss- benzoylamino-glyoxime are suspended in 10 ml of 20% strength aqueous sodium hydroxide solution. The mixture is heated to about 800 for 5-10 minutes while stirring in a water bath.
The product first floats on the surface of the liquid and then goes into suspension in the course of the reaction. After cooling, the product is extracted with ether. The organic phase is dried, filtered and evaporated. The residue is recrystallized from isopropanol. Pure 3-amino-4 (3,4-xylyl) furazan with a melting point of 109-112 is obtained in this way.
The starting material is obtained as follows:
0.58 g of (3,4-xylyl) -amino-glyoxime (a-isomer) are dissolved in a mixture of 10 ml of dioxane puriss and 1.35 g of collidine. 1.57 g of benzoyl chloride are then added to the solution in the cold and the mixture is left to stand for 4 hours. Then it is diluted with water and chloroform. The organic phase is washed with water, dried with sodium sulfate, filtered and evaporated. The crude dibenzoate is recrystallized from acetone and benzene, m.p. 196-198.
Example 2
0.5 g of a- (3,4-xylyl) -a-acetyl-p-acet-aminoglyoxime is suspended in 20 ml of 20% strength aqueous sodium hydroxide solution. This suspension is refluxed for 1/2 hour, the crystals dissolving into an oil.
After cooling, the oil crystallizes. The crystals are extracted with ether. The organic phase is washed with water, dried with sodium sulfate and evaporated. This gives 3-amino-4 (3,4-xylyl) furazan with a melting point of 111-113%.
The starting material is prepared as follows: a) A solution of 72 g of the crude sodium salt of (3,4-xylyl) -glyoxal-aldoxime [M. Furukawa, T. Ueda, Chem. Pharm. Bull. (Tokyo) 8, (1960) 867] in 200 ml of ice water, 300 ml of alcohol and 27.0 g of hydroxylamine hydrochloride are added. The suspension obtained is stirred overnight. A solution forms which is decolorized with activated charcoal. The alcohol is evaporated off and the residue is diluted with water. The precipitated product is filtered off, washed with water, dried and suspended in 100 ml of chloroform. This suspension is refluxed for 10 minutes, cooled and the product filtered, which is then washed with a little cold chloroform.
This gives (3,4-xylyl) glyoxime with a melting point of 164 to 1650 as colorless crystals. b) To a suspension of 18.5 g of (3,4-xylyl) glyoxime in 160 ml of absolute ether is added a solution of 9.6 g of liquid nitrous oxide in 50 ml of absolute ether. The solution obtained is stirred for 10 minutes in an ice bath, then for a further half an hour at room temperature. Then it is evaporated to dryness and the residue washed with a little ether.
This gives (3,4-xylyl) glyoxylonitrile oxide oxime with a melting point of 77-780. c) A solution of 8.8 g (3,4-xylyl) -glyoxylnkril- oxime in 330 ml of ether is cooled to 0-5 and at this temperature with stirring within 10 minutes with 11.3 ml of concentrated, aqueous ammonia solution offset. The yellowish emulsion obtained is stirred at room temperature for 16 hours. Then it is acidified with 6N hydrochloric acid while cooling with ice water. The acidic, aqueous phase is separated off, washed with ether, cleaned with activated charcoal and filtered. The colorless filtrate is carefully neutralized with solid sodium bicarbonate. A colorless, crystalline product precipitates out.
It is filtered off, washed with water and dried in vacuo at 40C.
(3,4-Xylyl) -amino-glyoxime (a-isomer) of melting point 1521540 is obtained. This product is almost colorless and practically pure.
1 g of α- (3,4-xylyl) -amino-glyoxime is suspended in 10 ml of acetic anhydride and stirred at room temperature for 2 hours. The mixture is then evaporated to dryness and the residue is recrystallized from isopropanol. The α- (3, 4-xylyl) -a-acetyl-s-acetamino-glyoxime of melting point 159-1610 is obtained.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1224569A CH478826A (en) | 1967-02-07 | 1967-02-07 | Process for the production of new furazan derivatives |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH189567A CH479606A (en) | 1967-02-07 | 1967-02-07 | Process for the production of new furazan derivatives |
| CH1224569A CH478826A (en) | 1967-02-07 | 1967-02-07 | Process for the production of new furazan derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH478826A true CH478826A (en) | 1969-09-30 |
Family
ID=4221103
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1224569A CH478826A (en) | 1967-02-07 | 1967-02-07 | Process for the production of new furazan derivatives |
| CH1224469A CH480352A (en) | 1967-02-07 | 1967-02-07 | Process for the production of new furazan derivatives |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1224469A CH480352A (en) | 1967-02-07 | 1967-02-07 | Process for the production of new furazan derivatives |
Country Status (6)
| Country | Link |
|---|---|
| AT (2) | AT277220B (en) |
| CH (2) | CH478826A (en) |
| ES (2) | ES350189A1 (en) |
| IE (1) | IE31940B1 (en) |
| IL (1) | IL29422A (en) |
| NO (1) | NO121499B (en) |
-
1967
- 1967-02-07 CH CH1224569A patent/CH478826A/en not_active IP Right Cessation
- 1967-02-07 CH CH1224469A patent/CH480352A/en not_active IP Right Cessation
-
1968
- 1968-02-06 IE IE14468A patent/IE31940B1/en unknown
- 1968-02-06 AT AT112768A patent/AT277220B/en not_active IP Right Cessation
- 1968-02-06 AT AT00883/69A patent/AT280260B/en not_active IP Right Cessation
- 1968-02-06 NO NO46568A patent/NO121499B/no unknown
- 1968-02-06 ES ES350189A patent/ES350189A1/en not_active Expired
- 1968-02-06 ES ES350190A patent/ES350190A1/en not_active Expired
- 1968-02-06 IL IL2942268A patent/IL29422A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL29422A (en) | 1972-02-29 |
| ES350189A1 (en) | 1969-04-16 |
| AT280260B (en) | 1970-04-10 |
| CH480352A (en) | 1969-10-31 |
| AT277220B (en) | 1969-12-10 |
| IE31940B1 (en) | 1973-02-21 |
| NO121499B (en) | 1971-03-08 |
| IE31940L (en) | 1968-08-07 |
| ES350190A1 (en) | 1969-04-16 |
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