EP2552900A1 - Procédé de préparation de dérivés d'amino-benzofurane - Google Patents
Procédé de préparation de dérivés d'amino-benzofuraneInfo
- Publication number
- EP2552900A1 EP2552900A1 EP11718443A EP11718443A EP2552900A1 EP 2552900 A1 EP2552900 A1 EP 2552900A1 EP 11718443 A EP11718443 A EP 11718443A EP 11718443 A EP11718443 A EP 11718443A EP 2552900 A1 EP2552900 A1 EP 2552900A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alkyl group
- formula
- general formula
- linear
- derivative
- 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- Withdrawn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
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- HFZZTHJMXZSGFP-UHFFFAOYSA-N 1-benzofuran-2-amine Chemical class C1=CC=C2OC(N)=CC2=C1 HFZZTHJMXZSGFP-UHFFFAOYSA-N 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 61
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 51
- 239000001257 hydrogen Substances 0.000 claims abstract description 32
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 32
- 239000002253 acid Substances 0.000 claims abstract description 31
- 150000003839 salts Chemical class 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 claims abstract description 10
- 239000012458 free base Substances 0.000 claims abstract description 7
- GMOLCSICTCPZCU-UHFFFAOYSA-N 1-benzofuran-5-amine Chemical class NC1=CC=C2OC=CC2=C1 GMOLCSICTCPZCU-UHFFFAOYSA-N 0.000 claims abstract description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 30
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 24
- -1 benzenesulphonyl halide Chemical class 0.000 claims description 20
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 239000012429 reaction media Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 14
- 150000002148 esters Chemical class 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 12
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 10
- 239000002585 base Substances 0.000 claims description 10
- ZQTNQVWKHCQYLQ-UHFFFAOYSA-N dronedarone Chemical compound C1=CC(OCCCN(CCCC)CCCC)=CC=C1C(=O)C1=C(CCCC)OC2=CC=C(NS(C)(=O)=O)C=C12 ZQTNQVWKHCQYLQ-UHFFFAOYSA-N 0.000 claims description 9
- 150000002576 ketones Chemical class 0.000 claims description 9
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 8
- 229960002084 dronedarone Drugs 0.000 claims description 8
- 239000012454 non-polar solvent Substances 0.000 claims description 8
- 239000002798 polar solvent Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 7
- 150000001907 coumarones Chemical class 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 7
- SPIIBUQYWNFELT-UHFFFAOYSA-N (5-amino-2-butyl-1-benzofuran-3-yl)-[4-[3-(dibutylamino)propoxy]phenyl]methanone Chemical compound C1=CC(OCCCN(CCCC)CCCC)=CC=C1C(=O)C1=C(CCCC)OC2=CC=C(N)C=C12 SPIIBUQYWNFELT-UHFFFAOYSA-N 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 5
- 150000007530 organic bases Chemical class 0.000 claims description 5
- 239000002841 Lewis acid Substances 0.000 claims description 4
- 150000001350 alkyl halides Chemical class 0.000 claims description 4
- 239000000010 aprotic solvent Substances 0.000 claims description 4
- 150000007517 lewis acids Chemical class 0.000 claims description 4
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 150000001266 acyl halides Chemical class 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- 239000012359 Methanesulfonyl chloride Substances 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 claims description 2
- 230000020335 dealkylation Effects 0.000 claims 1
- 238000006900 dealkylation reaction Methods 0.000 claims 1
- 238000007363 ring formation reaction Methods 0.000 claims 1
- 238000007127 saponification reaction Methods 0.000 claims 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 21
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000013078 crystal Substances 0.000 description 16
- 239000012071 phase Substances 0.000 description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 15
- 239000000243 solution Substances 0.000 description 12
- 239000012074 organic phase Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 7
- 238000005481 NMR spectroscopy Methods 0.000 description 7
- 239000008346 aqueous phase Substances 0.000 description 7
- 239000002244 precipitate Substances 0.000 description 7
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 235000019198 oils Nutrition 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 238000005160 1H NMR spectroscopy Methods 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- DRSHXJFUUPIBHX-UHFFFAOYSA-N COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 Chemical compound COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 DRSHXJFUUPIBHX-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
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 3
- 150000008041 alkali metal carbonates Chemical class 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- OBTZDIRUQWFRFZ-UHFFFAOYSA-N 2-(5-methylfuran-2-yl)-n-(4-methylphenyl)quinoline-4-carboxamide Chemical compound O1C(C)=CC=C1C1=CC(C(=O)NC=2C=CC(C)=CC=2)=C(C=CC=C2)C2=N1 OBTZDIRUQWFRFZ-UHFFFAOYSA-N 0.000 description 2
- 125000001999 4-Methoxybenzoyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1OC([H])([H])[H])C(*)=O 0.000 description 2
- FCSKOFQQCWLGMV-UHFFFAOYSA-N 5-{5-[2-chloro-4-(4,5-dihydro-1,3-oxazol-2-yl)phenoxy]pentyl}-3-methylisoxazole Chemical compound O1N=C(C)C=C1CCCCCOC1=CC=C(C=2OCCN=2)C=C1Cl FCSKOFQQCWLGMV-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- XWMLFCHJBNDGFN-UHFFFAOYSA-N n-(3-formyl-4-hydroxyphenyl)acetamide Chemical compound CC(=O)NC1=CC=C(O)C(C=O)=C1 XWMLFCHJBNDGFN-UHFFFAOYSA-N 0.000 description 2
- 125000003170 phenylsulfonyl group Chemical group C1(=CC=CC=C1)S(=O)(=O)* 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- FMCAFXHLMUOIGG-IWFBPKFRSA-N (2s)-2-[[(2s)-2-[[(2s)-2-[[(2r)-2-formamido-3-sulfanylpropanoyl]amino]-3-methylbutanoyl]amino]-3-(4-hydroxy-2,5-dimethylphenyl)propanoyl]amino]-4-methylsulfanylbutanoic acid Chemical compound O=CN[C@@H](CS)C(=O)N[C@@H](C(C)C)C(=O)N[C@H](C(=O)N[C@@H](CCSC)C(O)=O)CC1=CC(C)=C(O)C=C1C FMCAFXHLMUOIGG-IWFBPKFRSA-N 0.000 description 1
- QTTLVUDYPZNGHX-UHFFFAOYSA-N (5-amino-2-butyl-1-benzofuran-3-yl)-[4-[3-(dibutylamino)propoxy]phenyl]methanone;hydrochloride Chemical compound Cl.C1=CC(OCCCN(CCCC)CCCC)=CC=C1C(=O)C1=C(CCCC)OC2=CC=C(N)C=C12 QTTLVUDYPZNGHX-UHFFFAOYSA-N 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- CPKOXUVSOOKUDA-UHFFFAOYSA-N 1-bromo-5-fluoro-2-iodo-4-methylbenzene Chemical compound CC1=CC(I)=C(Br)C=C1F CPKOXUVSOOKUDA-UHFFFAOYSA-N 0.000 description 1
- YIYARJKYRBMMJG-UHFFFAOYSA-N 141645-23-0 Chemical compound C1=CC(OCCCN(CCCC)CCCC)=CC=C1C(=O)C1=C(CCCC)OC2=CC=C([N+]([O-])=O)C=C12 YIYARJKYRBMMJG-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 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
- 235000019502 Orange oil Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- MXMOTZIXVICDSD-UHFFFAOYSA-N anisoyl chloride Chemical compound COC1=CC=C(C(Cl)=O)C=C1 MXMOTZIXVICDSD-UHFFFAOYSA-N 0.000 description 1
- 230000003288 anthiarrhythmic effect Effects 0.000 description 1
- 239000003416 antiarrhythmic agent Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- CSKNSYBAZOQPLR-UHFFFAOYSA-N benzenesulfonyl chloride Chemical compound ClS(=O)(=O)C1=CC=CC=C1 CSKNSYBAZOQPLR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- AQEFLFZSWDEAIP-UHFFFAOYSA-N di-tert-butyl ether Chemical compound CC(C)(C)OC(C)(C)C AQEFLFZSWDEAIP-UHFFFAOYSA-N 0.000 description 1
- 229960002919 dronedarone hydrochloride Drugs 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- YGLPDRIMFIXNBI-UHFFFAOYSA-N methyl 2-bromohexanoate Chemical compound CCCCC(Br)C(=O)OC YGLPDRIMFIXNBI-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- VGCNHFYRFVWTMU-UHFFFAOYSA-N n-(1-benzofuran-2-yl)methanesulfonamide Chemical class C1=CC=C2OC(NS(=O)(=O)C)=CC2=C1 VGCNHFYRFVWTMU-UHFFFAOYSA-N 0.000 description 1
- ANLMKUQEPXRMGV-UHFFFAOYSA-N n-butyl-n-(3-chloropropyl)butan-1-amine Chemical compound CCCCN(CCCC)CCCCl ANLMKUQEPXRMGV-UHFFFAOYSA-N 0.000 description 1
- 239000010502 orange oil Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/30—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by doubly-bound oxygen atoms
- C07C233/33—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by doubly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/45—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups
- C07C233/53—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
- C07C233/54—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of a saturated carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
- C07D307/80—Radicals substituted by oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
- C07D307/81—Radicals substituted by nitrogen atoms not forming part of a nitro radical
Definitions
- the present invention relates, in general, to the preparation of amino benzofuran derivatives.
- the invention relates to a process for the preparation of 5-amino-benzofuran derivatives of general formula:
- R 1 is hydrogen or alkyl and R 2 is alkyl or dialkylaminoalkyl.
- R represents in particular an alkyl group
- linear or branched dC 8 include an alkyl group, linear or branched C 1 -C 4 such as methyl, ethyl, n-propyl, isopropyl, n-butyl, sec- butyl or tert-butyl,
- R 2 represents in particular an alkyl group
- linear or branched dC 8 include an alkyl group, linear or branched C 1 -C 4 such as methyl, ethyl, n-propyl, isopropyl, n-butyl, sec butyl or tert-butyl or a dialkylaminoalkyl group in which each linear or branched alkyl group is in CC 8 in which each linear or branched alkyl group is in CC 4 such as methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl or tert-butyl.
- R 2 represents 3- (di-n-butylamino) -propyl.
- R 2 represents 3- (di-n-butylamino) -propyl.
- EP 0471609 discloses a process for the synthesis of 2-n-butyl-3- ⁇ 4- [3- (di-n-butylamino) propoxy] benzoyl ⁇ -5-amino benzofuran using 2-n-butyl-3- ⁇ 4- [3- (di-n-butylamino) -propoxy] -benzoyl ⁇ -5-nitrobenzofuran which is reduced under pressure with the hydrogen in the presence of platinum oxide as a catalyst, which produces the desired compound.
- WO 03/040120 describes a process for the preparation of Dronedarone, in 6 steps, using a Friedel-Crafts reaction.
- this document does not describe the preparation of Dronedarone comprising a simple step of treating a 5-N-alkylamido-benzofuran derivative of formula (IIa) according to the invention with a strong acid.
- the 5-amino-benzofuran derivatives of formula I can be prepared by treating, with a strong acid such as a hydracid, for example hydrochloric acid, a 5-N-alkylamido-benzofuran derivative of general formula:
- R 1 and R 2 have the same meaning as above and R 3 represents a linear or branched C 1 -C 4 alkyl group, for example methyl, to form an acid addition salt of the compound of formula I, which salt is itself treated, if necessary, with a basic agent such as an alkali metal hydroxide, to produce this compound of formula I in free base form.
- a basic agent such as an alkali metal hydroxide
- strong acid is meant any chemical compound which has a very high affinity for providing protons in the reaction medium and which is characterized, in aqueous solution, by a pKa less than or equal to 1.
- strong acid is meant in particular any hydracid such as selected from hydrochloric acid, hydrobromic acid or hydrofluoric acid.
- basic agent any chemical compound which has a strong affinity for H + protons and which is characterized, in aqueous solution, by a pKa greater than 7.
- base agent is meant in particular all types of bases as chosen from organic bases, weak bases and strong bases, especially chosen from tertiary amines, alkali metal carbonates and alkali metal hydroxides.
- strong base is meant any chemical compound which has a very high affinity for H + protons and which is characterized, in aqueous solution, by a pKa greater than 14.
- strong base is meant in particular any hydroxide of alkali metal, as selected from sodium or potassium hydroxide.
- the acid treatment can be carried out in a polar solvent such as an alcohol, for example ethanol, by means of an acid generally in excess, for example from 1 to 6 equivalents of this acid per equivalent of compound of formula II.
- a polar solvent such as an alcohol, for example ethanol
- the acid addition salt of the compound of formula I can be treated with a basic agent, after isolation of the reaction medium in which it is formed or, conversely, in situ, that is to say within this same reaction medium.
- the starting compounds of formula II may be prepared according to the following reaction scheme: ⁇
- This amide of formula IV is then reacted with an ester of formula V in which R 1 has the same meaning as above, R 4 represents a linear or branched alkyl group at dC 4 and Hal represents a halogen, for example bromine, in the presence of a basic agent generally a weak base such as an alkali metal carbonate and by heating in a polar solvent so as to form an ester of formula VI in which R 1, R 3 and R 4 have the same meaning as above.
- the ester of formula VI is then saponified in the presence of a strong base generally an alkali metal hydroxide, the reaction usually taking place at room temperature. and a suitable solvent, for example an ether, to give a carboxylic acid derivative salt which is treated with a strong acid, such as a hydric acid, for example hydrochloric acid, which provides a derivative of carboxylic acid of formula VII wherein R 1 and R 3 have the same meaning as above.
- a strong base generally an alkali metal hydroxide
- a suitable solvent for example an ether
- the compound of formula VII thus produced is then cyclized to a benzofuran derivative of formula VIII in which R 1 and R 3 have the same meaning as above and this, in the presence of an organic base, generally a tertiary amine and a halide of benzenesulfonyl.
- an organic base generally a tertiary amine and a halide of benzenesulfonyl.
- the reaction is usually conducted by heating in a suitable solvent, generally an aprotic solvent such as an aromatic hydrocarbon or an ether.
- the benzofuran derivative of formula VIII thus obtained is then coupled with an acyl halogen of formula IX in which R 5 represents an alkyl group, linear or branched, in CC 4 for example methyl and Hal has the same meaning as previously for example chlorine and this, in the presence of a Lewis acid for example ferric chloride and in a non-polar solvent for example a halogenated compound.
- the reaction medium thus obtained is then hydrolysed in the presence of a strong acid, for example a hydric acid, to produce a ketone of formula X in which R 1, R 3 and R 5 have the same meaning as above.
- This ketone of formula X is then dealkylated by heating in the presence of aluminum chloride and in a non-polar solvent usually a halogenated solvent such as chlorobenzene to form a 4-hydroxyphenyl derivative of formula XI in which R 1 and R 3 have the same meaning as before.
- the compound of formula XI is reacted with an alkyl halide of formula XII in which R 2 has the same meaning as above and Hal has the same meaning as above, for example chlorine, the reaction taking place in the presence of a basic agent such as an alkali metal carbonate and by heating usually in a polar solvent such as a ketone to produce the desired compound of formula II.
- a basic agent such as an alkali metal carbonate
- a polar solvent such as a ketone
- Another subject of the present invention relates to N-phenylalkylamide derivatives of general formula:
- R 3 has the same meaning as above and Y represents hydrogen or a group of general formula:
- R / and R 6 each represent, independently of one another, hydrogen or a linear or branched alkyl group, in CC 4
- N-phenyl-alkylamide derivatives of general formula XIII mention may be made of those in which R 3 represents a linear or branched alkyl group at CC 4 and Y represents a group of general formula XIV:
- R / and R 6 each independently represent hydrogen or a linear or branched alkyl group at CC 4 .
- N-phenylalkylamide derivatives of formula XIII may be those in which: a) R 3 represents methyl and Y represents group XIV in which R represents n-butyl and R 6 represents methyl,
- R 3 represents methyl and Y represents group XIV in which R represents n-butyl and R 6 represents hydrogen.
- Another object of the present invention relates to 5-N-alkylamido-benzofuran derivatives of the general formula.
- R 2 ' is hydrogen, a linear or branched alkyl group of CC 4 or a dialkylaminoalkyl group in which each linear or branched alkyl group is C 1 -C 4
- R 2 ' is hydrogen, a linear or branched alkyl group of CC 4 or a dialkylaminoalkyl group in which each linear or branched alkyl group is C 1 -C 4 .
- R / is n-butyl
- R 3 is methyl
- R 2 ' is hydrogen, methyl or 3- (di-n-butylamino) propyl.
- subgroups of the 5-N-alkylamido-benzofuran derivatives of formula XV may be those wherein: a) R / is n-butyl, R 3 is methyl, and Z is the group XVI wherein R 2 ' represents hydrogen,
- R / represents n-butyl
- R 3 represents methyl
- Z represents group XVI in which R 2 'represents methyl
- R / represents n-butyl
- R 3 represents methyl
- Z represents group XVI in which R 2 'represents 3- (di-n-butylamino) -propyl.
- a further object of the present invention is the use of compounds of formula II for the preparation of dronedarone and its pharmaceutically acceptable salts.
- R 3 has the same meaning as above, for example methyl, with a strong acid such as a hydro acid for example hydrochloric acid, to form an addition salt (also called “acid addition salt”) ) 2-n-butyl-3- ⁇ 4- [3- (di-n-butylamino) -propoxy] -benzoyl ⁇ -5-amino-benzofuran of the formula:
- the dichloromethane layer is washed with water (3 x 10 ml) and then this phase is concentrated on a rotary evaporator to give 9 g of brown crystals. These crystals are re-empted with 20 ml of water and then crushed with a spatula to recover finely divided crystals suspended in water. It is then filtered, which gives 8.9 g of wet crystals which are taken up in 25 ml of methyl tert-butyl ether. 5 ml of methanol are added and the mixture is then refluxed for 1 hour in the presence of black (0.1 g). The hot reaction mixture is filtered through Celite and then concentrated to 50%. 4 g of a precipitate of 98% organic purity are thus recovered. The filtrate is concentrated again and then stirred at room temperature which causes the appearance of a new precipitate which is filtered and dried. In this way 1.6 g of the desired compound is recovered.
- the reaction mixture is cooled to about 50 ° C and hydrolyzed by adding 4 ml of water.
- the toluene phase and the aqueous phase are decanted and drawn off.
- To this organic phase 2 ml of water and 0.2 of 36% hydrochloric acid are added. Stirring is carried out for 5 min, decanting and withdrawing the two phases.
- the toluene phase is washed with 2 ml of water, decanted and withdrawn the two phases.
- the organic phase is washed with a solution of 0.9 g of 23% sodium hydroxide in 1.5 ml of water.
- the toluene phase is stirred, decanted and washed with a solution of 2 g of 10% sodium chloride.
- the two phases are decanted, the two phases are withdrawn and the toluene phase is concentrated on a rotary evaporator to recover 1.1 g of the desired compound in the form of a brown oil.
- reaction medium While stirring, the reaction medium is allowed to return to ambient temperature, which causes the appearance of a precipitate which is kept in contact with an ice bath (5 ° C.) for 10 min.
- the reaction medium is filtered and pale yellow crystals are recovered. It is dried in an oven under vacuum and ⁇ ' ⁇ which provides 10.1 g of crystals. These crystals are taken up in ethyl acetate (4 volumes) and the mixture is then brought to reflux until dissolution takes place.
- the reaction medium is allowed to return to ambient temperature and then the crystals formed are filtered on sintered glass.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1052481A FR2958291B1 (fr) | 2010-04-01 | 2010-04-01 | Procede de preparation de derives d'amino-benzofurane |
PCT/FR2011/050726 WO2011121245A1 (fr) | 2010-04-01 | 2011-03-31 | Procédé de préparation de dérivés d'amino-benzofurane |
Publications (1)
Publication Number | Publication Date |
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EP2552900A1 true EP2552900A1 (fr) | 2013-02-06 |
Family
ID=42941896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11718443A Withdrawn EP2552900A1 (fr) | 2010-04-01 | 2011-03-31 | Procédé de préparation de dérivés d'amino-benzofurane |
Country Status (14)
Country | Link |
---|---|
US (1) | US8686180B2 (fr) |
EP (1) | EP2552900A1 (fr) |
JP (1) | JP2013523700A (fr) |
KR (1) | KR20130021359A (fr) |
CN (1) | CN102906081A (fr) |
AU (1) | AU2011234294A1 (fr) |
BR (1) | BR112012024403A2 (fr) |
CA (1) | CA2794648A1 (fr) |
FR (1) | FR2958291B1 (fr) |
IL (1) | IL222290A0 (fr) |
MX (1) | MX2012011413A (fr) |
RU (1) | RU2012146522A (fr) |
SG (1) | SG184370A1 (fr) |
WO (1) | WO2011121245A1 (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HUP0900759A2 (en) | 2009-12-08 | 2011-11-28 | Sanofi Aventis | Novel process for producing dronedarone |
HUP1000010A2 (en) | 2010-01-08 | 2011-11-28 | Sanofi Sa | Process for producing dronedarone |
FR2957079B1 (fr) | 2010-03-02 | 2012-07-27 | Sanofi Aventis | Procede de synthese de derives de cetobenzofurane |
FR2958290B1 (fr) | 2010-03-30 | 2012-10-19 | Sanofi Aventis | Procede de preparation de derives de sulfonamido-benzofurane |
HUP1000330A2 (en) | 2010-06-18 | 2011-12-28 | Sanofi Sa | Process for the preparation of dronedarone and the novel intermediates |
HUP1100165A2 (en) | 2011-03-29 | 2012-12-28 | Sanofi Sa | Process for preparation of dronedarone by n-butylation |
HUP1100167A2 (en) | 2011-03-29 | 2012-11-28 | Sanofi Sa | Process for preparation of dronedarone by mesylation |
FR2983198B1 (fr) | 2011-11-29 | 2013-11-15 | Sanofi Sa | Procede de preparation de derives de 5-amino-benzoyl-benzofurane |
EP2617718A1 (fr) | 2012-01-20 | 2013-07-24 | Sanofi | Procédé de préparation de dronédarone à l'aide d'un réactif dibutylaminopropanol |
US9221778B2 (en) | 2012-02-13 | 2015-12-29 | Sanofi | Process for preparation of dronedarone by removal of hydroxyl group |
WO2013121234A1 (fr) | 2012-02-14 | 2013-08-22 | Sanofi | Procédé de préparation de dronédarone par oxydation d'un groupe sulphényle |
US9382223B2 (en) | 2012-02-22 | 2016-07-05 | Sanofi | Process for preparation of dronedarone by oxidation of a hydroxyl group |
US9238636B2 (en) | 2012-05-31 | 2016-01-19 | Sanofi | Process for preparation of dronedarone by Grignard reaction |
CN109438403A (zh) * | 2018-12-28 | 2019-03-08 | 凯瑞斯德生化(苏州)有限公司 | 一种5-氨基苯并呋喃-2-甲酸乙酯的制备方法 |
CN114539193B (zh) * | 2022-01-20 | 2024-08-06 | 安徽普利药业有限公司 | 一种盐酸胺碘酮中间体的制备方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62155269A (ja) * | 1984-12-29 | 1987-07-10 | Kaken Pharmaceut Co Ltd | ベンゾフラン誘導体 |
FR2665444B1 (fr) * | 1990-08-06 | 1992-11-27 | Sanofi Sa | Derives d'amino-benzofuranne, benzothiophene ou indole, leur procede de preparation ainsi que les compositions les contenant. |
FR2817864B1 (fr) | 2000-12-11 | 2003-02-21 | Sanofi Synthelabo | Derive de methanesulfonamido-benzofurane, son procede de preparation et son utilisation comme intermediaire de synthese |
FR2817865B1 (fr) | 2000-12-11 | 2005-02-18 | Sanofi Synthelabo | Derive aminoalkoxybenzoyle sous forme de sel, son procede de preparation et son utilisation comme intermediaire de synthese |
IL146389A0 (en) * | 2001-11-08 | 2002-07-25 | Isp Finetech Ltd | Process for the preparation of dronedarone |
TW201111354A (en) | 2009-05-27 | 2011-04-01 | Sanofi Aventis | Process for the production of Dronedarone intermediates |
TW201107303A (en) | 2009-05-27 | 2011-03-01 | Sanofi Aventis | Process for the production of benzofurans |
HUP0900759A2 (en) | 2009-12-08 | 2011-11-28 | Sanofi Aventis | Novel process for producing dronedarone |
HUP1000010A2 (en) | 2010-01-08 | 2011-11-28 | Sanofi Sa | Process for producing dronedarone |
FR2957079B1 (fr) | 2010-03-02 | 2012-07-27 | Sanofi Aventis | Procede de synthese de derives de cetobenzofurane |
FR2958290B1 (fr) | 2010-03-30 | 2012-10-19 | Sanofi Aventis | Procede de preparation de derives de sulfonamido-benzofurane |
FR2973027A1 (fr) | 2011-03-24 | 2012-09-28 | Sanofi Aventis | Procede de synthese de derives de cetobenzofurane |
HUP1100167A2 (en) | 2011-03-29 | 2012-11-28 | Sanofi Sa | Process for preparation of dronedarone by mesylation |
HUP1100165A2 (en) | 2011-03-29 | 2012-12-28 | Sanofi Sa | Process for preparation of dronedarone by n-butylation |
HUP1100166A2 (en) | 2011-03-29 | 2012-12-28 | Sanofi Sa | Reductive amination process for preparation of dronedarone using amine intermediary compound |
WO2013014479A1 (fr) | 2011-07-26 | 2013-01-31 | Sanofi | Procédé d'amination réductrice pour la préparation de dronédarone, utilisant un composé intermédiaire aldéhyde |
WO2013014480A1 (fr) | 2011-07-26 | 2013-01-31 | Sanofi | Procédé de préparation de dronédarone utilisant un composé intermédiaire amide |
WO2013014478A1 (fr) | 2011-07-26 | 2013-01-31 | Sanofi | Procédé d'amination réductrice pour la préparation de dronédarone, utilisant un composé intermédiaire carboxyle |
-
2010
- 2010-04-01 FR FR1052481A patent/FR2958291B1/fr not_active Expired - Fee Related
-
2011
- 2011-03-31 SG SG2012072724A patent/SG184370A1/en unknown
- 2011-03-31 KR KR1020127025588A patent/KR20130021359A/ko not_active Withdrawn
- 2011-03-31 EP EP11718443A patent/EP2552900A1/fr not_active Withdrawn
- 2011-03-31 BR BR112012024403A patent/BR112012024403A2/pt not_active IP Right Cessation
- 2011-03-31 WO PCT/FR2011/050726 patent/WO2011121245A1/fr active Application Filing
- 2011-03-31 RU RU2012146522/04A patent/RU2012146522A/ru not_active Application Discontinuation
- 2011-03-31 AU AU2011234294A patent/AU2011234294A1/en not_active Abandoned
- 2011-03-31 CN CN2011800255448A patent/CN102906081A/zh active Pending
- 2011-03-31 MX MX2012011413A patent/MX2012011413A/es not_active Application Discontinuation
- 2011-03-31 JP JP2013501915A patent/JP2013523700A/ja not_active Withdrawn
- 2011-03-31 CA CA2794648A patent/CA2794648A1/fr not_active Abandoned
-
2012
- 2012-09-27 US US13/628,867 patent/US8686180B2/en active Active
- 2012-10-09 IL IL222290A patent/IL222290A0/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2011121245A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2794648A1 (fr) | 2011-10-06 |
FR2958291A1 (fr) | 2011-10-07 |
KR20130021359A (ko) | 2013-03-05 |
IL222290A0 (en) | 2012-12-31 |
RU2012146522A (ru) | 2014-05-10 |
JP2013523700A (ja) | 2013-06-17 |
CN102906081A (zh) | 2013-01-30 |
MX2012011413A (es) | 2012-11-23 |
US20130023677A1 (en) | 2013-01-24 |
BR112012024403A2 (pt) | 2015-09-15 |
AU2011234294A1 (en) | 2012-11-08 |
FR2958291B1 (fr) | 2013-07-05 |
US8686180B2 (en) | 2014-04-01 |
WO2011121245A1 (fr) | 2011-10-06 |
SG184370A1 (en) | 2012-11-29 |
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