EP1425261A2 - Verfahren zur herstellung von 4-amino-1-naphtholethern - Google Patents
Verfahren zur herstellung von 4-amino-1-naphtholethernInfo
- Publication number
- EP1425261A2 EP1425261A2 EP02797591A EP02797591A EP1425261A2 EP 1425261 A2 EP1425261 A2 EP 1425261A2 EP 02797591 A EP02797591 A EP 02797591A EP 02797591 A EP02797591 A EP 02797591A EP 1425261 A2 EP1425261 A2 EP 1425261A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- alkyl
- general formula
- unsubstituted
- haloalkyl
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- -1 4-amino-1-naphthol ethers Chemical class 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 150000004782 1-naphthols Chemical class 0.000 claims abstract description 14
- 125000002252 acyl group Chemical group 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 41
- 125000000217 alkyl group Chemical group 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 30
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 28
- KJCVRFUGPWSIIH-UHFFFAOYSA-N alpha-naphthol Natural products C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 15
- 229910052736 halogen Inorganic materials 0.000 claims description 15
- 150000002367 halogens Chemical class 0.000 claims description 15
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 14
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 14
- 125000001188 haloalkyl group Chemical group 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 14
- 125000001424 substituent group Chemical group 0.000 claims description 14
- 125000000623 heterocyclic group Chemical group 0.000 claims description 13
- 125000003118 aryl group Chemical group 0.000 claims description 11
- 150000003863 ammonium salts Chemical class 0.000 claims description 10
- 229920000137 polyphosphoric acid Polymers 0.000 claims description 10
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052794 bromium Inorganic materials 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 8
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- 150000002431 hydrogen Chemical class 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 claims description 7
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 7
- 150000007513 acids Chemical class 0.000 claims description 7
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 7
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 7
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical class ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims description 6
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 claims description 6
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims description 6
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 6
- 150000001450 anions Chemical class 0.000 claims description 5
- 150000001735 carboxylic acids Chemical class 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 125000002947 alkylene group Chemical group 0.000 claims description 4
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 4
- 125000004765 (C1-C4) haloalkyl group Chemical group 0.000 claims description 3
- NBJHDLKSWUDGJG-UHFFFAOYSA-N 4-(2-chloroethyl)morpholin-4-ium;chloride Chemical compound Cl.ClCCN1CCOCC1 NBJHDLKSWUDGJG-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- 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 claims description 3
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 238000003776 cleavage reaction Methods 0.000 claims description 2
- 238000007127 saponification reaction Methods 0.000 claims description 2
- 230000007017 scission Effects 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 2
- 238000005903 acid hydrolysis reaction Methods 0.000 claims 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims 1
- 229960003750 ethyl chloride Drugs 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 150000001412 amines Chemical class 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 235000011007 phosphoric acid Nutrition 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 4
- 229960000583 acetic acid Drugs 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 3
- ZAPMTSHEXFEPSD-UHFFFAOYSA-N 4-(2-chloroethyl)morpholine Chemical compound ClCCN1CCOCC1 ZAPMTSHEXFEPSD-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical class C1COCCN1 YNAVUWVOSKDBBP-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
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Chemical group 0.000 description 3
- 239000001301 oxygen Chemical group 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Chemical group 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- NQMUGNMMFTYOHK-UHFFFAOYSA-N 1-methoxynaphthalene Chemical compound C1=CC=C2C(OC)=CC=CC2=C1 NQMUGNMMFTYOHK-UHFFFAOYSA-N 0.000 description 2
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 2
- ABJQKDJOYSQVFX-UHFFFAOYSA-N 4-aminonaphthalen-1-ol Chemical compound C1=CC=C2C(N)=CC=C(O)C2=C1 ABJQKDJOYSQVFX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 150000007854 aminals Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 125000002837 carbocyclic group Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 229940098779 methanesulfonic acid Drugs 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 125000006239 protecting group Chemical group 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- FDBQTRARWCKEJY-UHFFFAOYSA-N (4-hydroxynaphthalen-1-yl)azanium;chloride Chemical compound [Cl-].C1=CC=C2C([NH3+])=CC=C(O)C2=C1 FDBQTRARWCKEJY-UHFFFAOYSA-N 0.000 description 1
- QPKNFEVLZVJGBM-UHFFFAOYSA-N 2-aminonaphthalen-1-ol Chemical compound C1=CC=CC2=C(O)C(N)=CC=C21 QPKNFEVLZVJGBM-UHFFFAOYSA-N 0.000 description 1
- 125000001340 2-chloroethyl group Chemical group [H]C([H])(Cl)C([H])([H])* 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- CVMXEDZZSWLXPB-UHFFFAOYSA-N 4-(2-bromoethyl)morpholine Chemical compound BrCCN1CCOCC1 CVMXEDZZSWLXPB-UHFFFAOYSA-N 0.000 description 1
- IGBPKVAMMYOPFA-UHFFFAOYSA-N 4-(2-methylsulfonylethyl)morpholine Chemical compound CS(=O)(=O)CCN1CCOCC1 IGBPKVAMMYOPFA-UHFFFAOYSA-N 0.000 description 1
- RGGDCOHLQXIUIA-UHFFFAOYSA-N 4-(2-naphthalen-1-yloxyethyl)morpholine Chemical compound C=1C=CC2=CC=CC=C2C=1OCCN1CCOCC1 RGGDCOHLQXIUIA-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 101700012268 Holin Proteins 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
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 125000002015 acyclic group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-M dihydrogenphosphate Chemical compound OP(O)([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-M 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229910000043 hydrogen iodide Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- WCYJQVALWQMJGE-UHFFFAOYSA-M hydroxylammonium chloride Chemical compound [Cl-].O[NH3+] WCYJQVALWQMJGE-UHFFFAOYSA-M 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000002780 morpholines Chemical class 0.000 description 1
- 125000002757 morpholinyl group Chemical group 0.000 description 1
- 125000006606 n-butoxy group Chemical group 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
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- CFHIDWOYWUOIHU-UHFFFAOYSA-N oxomethyl Chemical compound O=[CH] CFHIDWOYWUOIHU-UHFFFAOYSA-N 0.000 description 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003053 piperidines Chemical class 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 150000003235 pyrrolidines Chemical class 0.000 description 1
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 description 1
- 125000004205 trifluoroethyl group Chemical group [H]C([H])(*)C(F)(F)F 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/08—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
- C07D295/084—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
- C07D295/088—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C213/00—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
- C07C213/02—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton by reactions involving the formation of amino groups from compounds containing hydroxy groups or etherified or esterified hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/10—Preparation of carboxylic acid amides from compounds not provided for in groups C07C231/02 - C07C231/08
Definitions
- the present invention relates to a ner process for the preparation of 4-amino-1-naphthol ethers and new intermediates.
- 4-Amino-1-naphthol ethers are valuable intermediates in the production of active pharmaceutical ingredients (see, for example, WO 00/43384; B. Bachman, J. Wetzel, J. Org. Chem., 11, 1946, pp. 454-462; R. Herbst, P. Johnson, J. Org. Chem. 17, 1952, pp. 693-697).
- the e.g. from WO 00/43384 known synthetic route starts from 4-amino-1-naphthol hydrochloride and includes the conversion of the amine into a protected derivative, the alkylation of the hydroxy group and then the elimination of the protective group.
- step a) of the nerfalirene according to the invention preference is given to using substituted or unsubstituted 1- ⁇ -phthols of the general formula (I)
- R represents hydrogen, halogen or Ci-C 4 alkyl
- R represents hydrogen, halogen, Ci-C 4 alkyl or C 1 -C 4 alkoxy and
- n zero, one, two, three or four
- R 4 each independently of one another for halogen, nitro, cyano, protected formyl, -Cs-alkyl, C 7 -C 10 arylalkyl, CrCs-hydroxyalkyl, -Cs-haloalkyl or C 6 -C 10 aryl or substituents of the general Formula (II),
- D is absent or represents a -Cs alkylene radical
- E represents a carbonyl group or sulfonyl group
- F represents R ⁇ , OR 6 , NH 2 , SR 6 , NHR 6 or NR 6 R 7 ,
- R and R each independently represent substituted or unsubstituted d-Cs-alkyl, CrCg-Halpgenalkyl, C 7 -C 12 arylalkyl or C 6 - C 10 aryl or
- NR 6 R 7 as a whole represents a 5- to 8-membered heterocycle.
- alkyl or alkylene each independently denotes a straight-chain, cyclic, branched or unbranched alkyl or alkylene radical. The same applies to the alkyl part of an arylalkyl radical.
- Examples of -CC alkyl radicals are methyl, ethyl, n-propyl, isopropyl or n-butyl, for d-Cs-alkyl radicals also n-pentyl, n-hexyl, cyclohexyl, n-heptyl, n-octyl and iso-octyl.
- d-Cg-alkylene radicals examples are methylene, 1,1-ethylene, 1,2-ethylene, 1,2-
- C 7 -C 12 arylalkyl radicals are benzyl or p-methylbenzyl.
- C 1 -C 4 alkoxy radicals are methoxy, ethoxy, n-propoxy, iso-propoxy or n-butoxy.
- aryl stands for both carbocyclic and heteroaromatic radicals in which none, one, two or three carbon atoms per cycle, but in the rest of at least one carbon atom, is substituted by heteroatoms selected from the group consisting of nitrogen, sulfur or oxygen.
- carbocyclic aromatic radicals or heteroaromatic radicals can be substituted with up to five identical or different substituents per cycle, selected from the group bromine, chlorine, fluorine, nitro, cyano, free or protected formyl, dC 8 alkyl, d-Cs- Hydroxyalkyl or radicals of the general formula (II) with the meaning given there.
- Carbocyclic, aromatic radicals or heteroaromatic radicals can, for example, be substituted or unsubstituted phenyl, pyridyl, imidazolyl, or pyrazolyl.
- Halogen means fluorine, chlorine, bromine or iodine in the contexts mentioned.
- Haloalkyl in the abovementioned contexts means in each case independently straight-chain, cyclic, branched or unbranched alkyl radicals which can be substituted by one, more or completely selected from the group fluorine, chlorine or bromine independently of one another by halogen atoms.
- C 1 -C 8 haloalkyl radicals are trifluoromethyl, pentafluoroethyl, 2,2,2-
- Trifluoroethyl, trichloromethyl or 2-chloroethyl Trifluoroethyl, trichloromethyl or 2-chloroethyl.
- hydroxyalkyl in each case means independently straight-chain, cyclic, branched or unbranched alkyl radicals which are substituted with one or more hydroxy groups in such a way that each carbon atom of the radical carries at most one oxygen, sulfur or nitrogen atom.
- d-Cs-hydroxyalkyl radicals are hydroxymethyl or 2-hydroxyethyl.
- Protected formyl means a formyl radical which is protected by conversion into an aminal, acetal or a mixed aminal acetal, the aminals,
- Acetals and mixed amino acetals can be acyclic or cyclic.
- 5- to 8-membered heterocycle stands for heterocycles which, in addition to nitrogen, can also contain up to 3 further heteroatoms selected from the group consisting of nitrogen, oxygen or sulfur.
- heterocycles are unsubstituted or substituted pyrrolidines, piperidines or morpholines.
- step a) of the process according to the invention as substituted or unsubstituted 1-naphthols are those of the general formula (I) used in the
- n zero, one or two
- R 4 each independently of one another for halogen, nitro, cyano, dC 8 alkyl, C ⁇ -
- E represents a carbonyl group or sulfonyl group and F represents R 6 , OR ⁇ , NH 2 , NHR 6 or NR 6 R 7 and where
- 1-Naphthol is very particularly preferably used for step a).
- step a) the substituted or unsubstituted 1-naphthols are optionally added in the presence of a base with reactive alkyl compounds
- Reactive alkyl compounds are, for example, those compounds of the general formula (purple) or (IIIb),
- R 1 represents C 3 -C 12 alkyl, C 2 -C 8 haloalkyl, C 7 -C 13 arylalkyl or substituents of the general formula (IN),
- B represents ⁇ R 6 R 7 , SR 6 or OR 6 in which
- R and R each independently represent substituted or unsubstituted dC 8 -alkyl, Ci-C 8 -haloalkyl, C -C 12 arylalkyl or C 6 -do-aryl or
- NR R as a whole represents a 5- to 8-membered heterocycle
- Y represents chlorine, bromine, iodine, or a sulfonate.
- R 1 represents substituents of the general formula (IV) in which
- A represents C 2 -C 4 alkylene or C 2 -C 4 haloalkylene
- R and R each independently represent substituted or unsubstituted C 1 -C 4 alkyl or
- NR 6 R 7 as a whole represents a 5- or 6-membered heterocycle
- Y represents chlorine, bromine, iodine, methanesulfonate, tosylate or trifluoromethanesulfonate.
- Such compounds of the general formula (purple) are very particularly preferably used as activated alkyl compounds in the
- R represents substituents of the general formula (IV) in which
- B represents NR 6 R 7 or OR 6
- R and R each independently represent substituted or unsubstituted C 1 -C 4 alkyl or
- NR R as a whole represents pyrrolidinyl, piperidinyl or morpholinyl and
- Y represents chlorine, bromine or trifluoromethanesulfonate.
- N- (2-chloroethyl) morpholine N- (2-bromoethyl) morpholine, N- (2-methanesulfonylethyl) morpholine, with N- (2-chloroethyl) morpholine being even more preferred ,
- N- (2-chloroethyl) morpholine can preferably be used in the form of the hydrochloride.
- the compounds of the general formulas (purple) or (IIIb) can, for example, in a molar ratio of 0.8 to 2.0 based on the substituted one used or unsubstituted 1-naphthol, a ratio of 0.9 to 1.5 is preferred, a ratio of 1.0 to 1.4 is very particularly preferred.
- the conversion of the substituted or unsubstituted 1-Na ⁇ hthole to the 1-Naphtholether can e.g. in the presence of base in a suitable solvent at a suitable temperature.
- Suitable bases are, for example, hydroxides, alcoholates, hydrides, amides, carbonates or hydrogen carbonates of alkali metals or alkaline earth metals or amines.
- hydroxides or carbonates of the alkali metals are preferred, and sodium or potassium hydroxide or carbonate are particularly preferred.
- Sodium hydroxide is very particularly preferred.
- Alkali metal hydroxides are preferably used in the form of an aqueous solution with a proportion of 30 to 70% by weight of base, and a solution of 30 to 70% by weight sodium hydroxide in water is particularly preferred.
- the amount of base can be, for example, between 0.8 and 5.0 equivalents based on the substituted or unsubstituted 1-naphthol used, preferably 0.9 to 1.5 equivalents, very particularly preferably 0.9 to 1.2 equivalents.
- Suitable solvents for step a) of the process according to the invention are aliphatic or aromatic hydrocarbons such as toluene, xylene, or hexane, chlorinated hydrocarbons such as chlorobenzene or methylene chloride, ethers such as tetrahydrofuran or diethyl ether, alcohols such as for example methanol, ethanol or isopropanol, esters such as ethyl acetate or polar aprotic solvents such as dimethylformamide or dimethyl sulfoxide or mixtures of such solvents.
- aliphatic or aromatic hydrocarbons such as toluene, xylene, or hexane
- chlorinated hydrocarbons such as chlorobenzene or methylene chloride
- ethers such as tetrahydrofuran or diethyl ether
- alcohols such as for example methanol, ethanol or isopropanol
- esters such as ethy
- the reaction is preferably carried out in an alcohol.
- Ethanol is very particularly preferred as solvent for step a).
- the temperature for step a) can be chosen, for example, from 0 to 120 ° C., preferably from 20 to 80 ° C., particularly preferably from 40 to 80 ° C.
- the pressure during the reaction is not critical, preferably at ambient pressure.
- step a) for example, the substituted or unsubstituted 1-naphthol and as reactive alkyl compound, for example N- (2-chloroethyl) morpholine hydrochloride are introduced in ethanol and the sodium hydroxide at 40 to 60 ° C. as 30-70- % aqueous solution added.
- reactive alkyl compound for example N- (2-chloroethyl) morpholine hydrochloride
- R, R, R, R and n have the meanings given above with the preferred ranges mentioned.
- the acylamination of electron-rich aromatics such as. of 1-methoxy-naphthalene is known from T. Cablewski et al, 1 Org. Chem., 1994, 59, pp. 5814-5817, but the process described there is only slightly regio-selective.
- step b) the conversion of the 1-naphthol ether into 4-acylamino-1-naphthol ether is carried out, for example,
- 1-naphthol ethers are reacted with a hydroxylammonium salt and a carboxylic acid in the presence of polyphosphoric acid.
- polyphosphoric acid is understood to mean, for example, those polyphosphoric acids which have a content of more than 100% based on orthophosphoric acid.
- a content of 100% to 300% is preferred, particularly preferably 100% to 150%.
- Commercially available polyphosphoric acid with a content of 116% based on orthophosphoric acid is very particularly preferred.
- the amount of polyphosphoric acid used can be, for example, 5 to 12 times, preferably 5 to 8 times, based on the molar ratio of the unsubstituted or substituted 1-naphthol ether used.
- the molar amount of polyphosphoric acid is given based on the content based on orthophosphoric acid.
- Suitable hydroxylammonium salts can be, for example, hydroxylamine hydrochloride, hydrogen sulfate or dihydrogen phosphate.
- Hydroxylamine hydrochloride is preferred.
- Suitable carboxylic acids are, for example, those of the general formula (VI)
- Acetic acid, trifluoroacetic acid, propionic acid and their anhydrides are preferred; acetic acid, propionic acid and trifluoroacetic acid are particularly preferred. Acetic acid is even more preferred.
- the amount of the carboxylic acid of the general formula (VI) used can be, for example, 0.8 to 20 times based on the molar ratio to the unsubstituted or substituted 1-naphthol ether used, preferably 1.0 to 3.0 times, more preferably preferably 1.2 to 1.5 times.
- the temperature during the reaction can be, for example, 50 to 130 ° C., 70 to 120 ° C. are preferred.
- the total reaction time can be, for example, 1 to 48 hours, preferably 2 to 10 hours, particularly preferably 5 to 8 hours.
- step b) carboxylic acid, hydroxylammonium salt and polyphosphoric acid are introduced, and the 1-naphthol ether at a temperature between 70 and 90 ° C. over a period of 0.5 to
- the work-up can preferably be carried out in such a way that the reaction mixture is brought together with ice and, if appropriate after addition of water, the pH is adjusted to a value of 9 to 10 with a base, preferably sodium hydroxide.
- the temperature is preferably kept below 40 ° C, particularly preferably at 25 ° C or less.
- R represents C -C 12 alkyl, C 2 -C 8 haloalkyl, C -C 13 arylalkyl or substituents of the general formula (IV),
- R and R each independently represent substituted or unsubstituted dC 8 -alkyl, d-Cs-haloalkyl, C -Ci 2 -arylalkyl or C 6 -do-aryl or
- R 2 for hydrogen, halogen or .
- R 3 represents hydrogen, halogen, -CC 4 alkyl or dC 4 alkoxy and
- n zero, one, two, three or four
- R 4 each independently of one another for halogen, nitro, cyano, protected formyl, dC 8 alkyl, C 7 -C 10 arylalkyl, C 1 -C 8 -hydroxyalkyl, C 1 -C 8 haloalkyl or C 6 -do-aryl or substituents of the general formula (II),
- D is absent or represents a dC 8 alkylene radical
- E represents a carbonyl group or sulfonyl group
- R 6 and R 7 each independently of one another are substituted or unsubstituted Ci-Cg-alkyl, d-Cs-haloalkyl, C 7 -C 12 - arylalkyl or C 6 -
- C 10 aryl or NR R as a whole represents a 5- to 8-membered heterocycle
- R s is dC 6 alkyl or C 1 -C 4 haloalkyl.
- Examples of individual compounds are 4- (2- [l] -naphthyloxy- [4] -acetamino-ethyl) -morpholine, 4- (2- [l] -naphthyloxy- [4] -propionylamino-ethyl) -mo holin and 4
- the compounds of the general formula (VIIa) can either be stored or reacted further.
- the compounds of the general formula (VIIIa) are to be stored and R 1 also contains amine nitrogen, the compounds can also be converted into their analogous ammonium compounds.
- Preferred acids H-An are mineral acids such as e.g. Sulfuric acid, hydrochloric acid, hydrobromic acid, phosphoric acid, tetrafluoroboric acid, hydrogen halides such as e.g. Hydrogen chloride, hydrogen bromide, carboxylic acids such as those of the general
- the anions An are derived accordingly from the acids H-An.
- step c) the 4-acylamino-1-naphthol ethers can be converted into the corresponding 4-
- Amino-1-naphthol ether are transferred.
- This step can be carried out analogously to the literature (e.g. to B. Bachman, J. Wetzel, J. Org. Chem., 11, 1946, pp. 454-462), for example by acidic or alkaline acyl group elimination, saponification with an acid is preferred , where the 4-amino-1-naphthol ether in the form of their ammonium salts attack.
- radicals R 1 which contain amine nitrogen
- the 4-amino-1-naphthol ethers are obtained in the form of the diammonium salts.
- suitable acids are those which have a pKa of 2 or less.
- these are hydrogen halides such as hydrogen chloride, hydrogen bromide or hydrogen iodide, mineral acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid or organic sulfonic acids such as methanesulfonic acid or mixtures of such acids.
- Hydrochloric acid and sulfuric acid are preferred, and concentrated hydrochloric acid is very particularly preferred.
- X stands for an anion of an acid. If the radical R 1 has amine nitrogen, the formula (VIIIb) also includes its ammonium salts.
- Vlla The compounds of the general formulas (Vlla), (VHb), (Villa) and (Vlllb) are particularly suitable for use in a process for the preparation of medicaments.
- the process according to the invention is characterized in particular by the fact that it uses the inexpensive 1-naphthols as starting substances and leads selectively to the desired 4-amino-1-naphthol ethers or their ammonium salts in high yields in a few steps.
- the salt formed is filtered off and washed with ethanol.
- the combined filtrates are evaporated to dryness on a rotary evaporator in the bath and 10 mbar at 80 ° C.
- the cooled residue is dissolved in 1200 ml of diethyl ether and first with 180 ml of water, then twice with 450 ml of 5% sodium hydroxide solution and finally twice The Etheiphase is dried with sodium sulfate and concentrated to dryness at 60 ° C and 10 mbar.
- the filter cake is suspended in 10 liters of water and dissolved with heating to 90 ° C.
- the solution is clarified with activated carbon.
- 530 g of 50% sodium hydroxide solution are added with stirring in 1 h until a pH of 10 is reached.
- Crystal suspension is filtered off at 50 ° C and the filter cake washed neutral with plenty of water. The filter cake is then dried in a vacuum drying cabinet.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001142461 DE10142461A1 (de) | 2001-08-31 | 2001-08-31 | Verfahren zur Herstellung von 4-Amino-1-naphtolethem |
| DE10142461 | 2001-08-31 | ||
| DE10154076 | 2001-11-02 | ||
| DE2001154076 DE10154076A1 (de) | 2001-11-02 | 2001-11-02 | Verfahren zur Herstellung von 4-Amino-1-naphtholethern |
| PCT/EP2002/009242 WO2003020686A2 (de) | 2001-08-31 | 2002-08-19 | Verfahren zur herstellung von 4-amino-1-naphtholethern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1425261A2 true EP1425261A2 (de) | 2004-06-09 |
Family
ID=26010026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02797591A Withdrawn EP1425261A2 (de) | 2001-08-31 | 2002-08-19 | Verfahren zur herstellung von 4-amino-1-naphtholethern |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6964963B2 (de) |
| EP (1) | EP1425261A2 (de) |
| CN (1) | CN1315781C (de) |
| AU (1) | AU2002333464A1 (de) |
| WO (1) | WO2003020686A2 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE827951C (de) * | 1949-07-29 | 1952-01-14 | Bayer Ag | Verfahren zur Herstellung von Alkyloxy-amino-acylamino-naphthalinen |
| US3933913A (en) * | 1971-06-01 | 1976-01-20 | Smithkline Corporation | N,N'-bis[3-substituted-4-hydroxypheyl)-2-hydroxyethyl)]-polymethylenediamines |
| DE2235597A1 (de) * | 1972-07-20 | 1974-01-31 | Boehringer Mannheim Gmbh | 1-eckige klammer auf 3-(5,6,7,8tetrahydronaphth-1-yl-oxy) -propyl eckige klammer zu -piperazin-derivate und verfahren zu ihrer herstellung |
| FR2387971A1 (fr) * | 1977-04-19 | 1978-11-17 | Delalande Sa | Nouvelles trimethoxy cinnamoyles piperazines, leur procede de preparation et leur application en therapeutique |
| WO1994001394A1 (en) * | 1992-07-02 | 1994-01-20 | Commonwealth Scientific And Industrial Research Organisation | Preparation of n-aryl amides |
| JPH11180966A (ja) * | 1997-09-09 | 1999-07-06 | Sankyo Co Ltd | アゾール誘導体 |
| UA73492C2 (en) * | 1999-01-19 | 2005-08-15 | Aromatic heterocyclic compounds as antiinflammatory agents |
-
2002
- 2002-08-19 EP EP02797591A patent/EP1425261A2/de not_active Withdrawn
- 2002-08-19 AU AU2002333464A patent/AU2002333464A1/en not_active Abandoned
- 2002-08-19 CN CNB028167082A patent/CN1315781C/zh not_active Expired - Fee Related
- 2002-08-19 WO PCT/EP2002/009242 patent/WO2003020686A2/de not_active Ceased
- 2002-08-27 US US10/228,529 patent/US6964963B2/en not_active Expired - Fee Related
-
2005
- 2005-08-01 US US11/194,368 patent/US20050261498A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03020686A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1315781C (zh) | 2007-05-16 |
| US20030083525A1 (en) | 2003-05-01 |
| CN1547568A (zh) | 2004-11-17 |
| WO2003020686A3 (de) | 2003-12-04 |
| US6964963B2 (en) | 2005-11-15 |
| US20050261498A1 (en) | 2005-11-24 |
| WO2003020686A2 (de) | 2003-03-13 |
| AU2002333464A1 (en) | 2003-03-18 |
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