AU2002331714B2 - Processes for the production of alpha-difluoromethyl ornithine (DFMO) - Google Patents
Processes for the production of alpha-difluoromethyl ornithine (DFMO) Download PDFInfo
- Publication number
- AU2002331714B2 AU2002331714B2 AU2002331714A AU2002331714A AU2002331714B2 AU 2002331714 B2 AU2002331714 B2 AU 2002331714B2 AU 2002331714 A AU2002331714 A AU 2002331714A AU 2002331714 A AU2002331714 A AU 2002331714A AU 2002331714 B2 AU2002331714 B2 AU 2002331714B2
- Authority
- AU
- Australia
- Prior art keywords
- compound
- formula
- alkyl
- branched
- linear
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims description 109
- 230000008569 process Effects 0.000 title claims description 99
- 238000004519 manufacturing process Methods 0.000 title description 5
- VLCYCQAOQCDTCN-ZCFIWIBFSA-N α-difluoromethylornithine Chemical compound NCCC[C@@](N)(C(F)F)C(O)=O VLCYCQAOQCDTCN-ZCFIWIBFSA-N 0.000 title description 2
- VLCYCQAOQCDTCN-UHFFFAOYSA-N eflornithine Chemical compound NCCCC(N)(C(F)F)C(O)=O VLCYCQAOQCDTCN-UHFFFAOYSA-N 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims description 176
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 71
- 125000003118 aryl group Chemical group 0.000 claims description 43
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 39
- 238000002360 preparation method Methods 0.000 claims description 38
- 239000002585 base Substances 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 31
- -1 lactam compound Chemical class 0.000 claims description 28
- 239000003054 catalyst Substances 0.000 claims description 26
- 229910052739 hydrogen Inorganic materials 0.000 claims description 26
- 239000002002 slurry Substances 0.000 claims description 26
- 238000006722 reduction reaction Methods 0.000 claims description 25
- 239000002253 acid Substances 0.000 claims description 24
- 239000001257 hydrogen Substances 0.000 claims description 24
- 230000009467 reduction Effects 0.000 claims description 23
- 150000002148 esters Chemical group 0.000 claims description 19
- 150000002431 hydrogen Chemical class 0.000 claims description 19
- 230000003301 hydrolyzing effect Effects 0.000 claims description 19
- 150000003839 salts Chemical class 0.000 claims description 19
- 239000003153 chemical reaction reagent Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 150000002825 nitriles Chemical group 0.000 claims description 17
- 125000003545 alkoxy group Chemical group 0.000 claims description 16
- 238000006460 hydrolysis reaction Methods 0.000 claims description 16
- 125000000217 alkyl group Chemical group 0.000 claims description 15
- 230000007062 hydrolysis Effects 0.000 claims description 15
- 239000007858 starting material Substances 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 230000002152 alkylating effect Effects 0.000 claims description 12
- 150000001408 amides Chemical class 0.000 claims description 12
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 claims description 8
- 229910052783 alkali metal Inorganic materials 0.000 claims description 8
- 238000005804 alkylation reaction Methods 0.000 claims description 8
- AMUDVKRELJZOCM-UHFFFAOYSA-N ethyl 2-(benzhydrylideneamino)-4-cyano-2-(difluoromethyl)butanoate Chemical compound C=1C=CC=CC=1C(=NC(CCC#N)(C(=O)OCC)C(F)F)C1=CC=CC=C1 AMUDVKRELJZOCM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 8
- 150000003951 lactams Chemical class 0.000 claims description 8
- 239000011707 mineral Substances 0.000 claims description 8
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 7
- 150000004703 alkoxides Chemical class 0.000 claims description 7
- HCLIRNGXOYRYHP-UHFFFAOYSA-N ethyl 2-amino-4-cyano-2-(difluoromethyl)butanoate Chemical compound CCOC(=O)C(N)(C(F)F)CCC#N HCLIRNGXOYRYHP-UHFFFAOYSA-N 0.000 claims description 7
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 7
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Natural products NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000004471 Glycine Substances 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- 239000010953 base metal Substances 0.000 claims description 6
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 claims description 6
- 101100276977 Caenorhabditis elegans dapk-1 gene Proteins 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 150000001340 alkali metals Chemical class 0.000 claims description 5
- 150000001412 amines Chemical group 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- SCCLGDKSIYWSSE-UHFFFAOYSA-N ethyl 2-acetamido-4-cyano-2-(difluoromethyl)butanoate Chemical compound CCOC(=O)C(C(F)F)(NC(C)=O)CCC#N SCCLGDKSIYWSSE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 229910052723 transition metal Inorganic materials 0.000 claims description 5
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 4
- 239000002168 alkylating agent Substances 0.000 claims description 4
- 229940100198 alkylating agent Drugs 0.000 claims description 4
- 239000000010 aprotic solvent Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- JGBNCLCBZBKRKP-QYCVXMPOSA-N (2s)-2,5-diamino-2-(difluoromethyl)pentanoic acid;dihydrochloride Chemical compound Cl.Cl.NCCC[C@@](N)(C(F)F)C(O)=O JGBNCLCBZBKRKP-QYCVXMPOSA-N 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- HTZCNXWZYVXIMZ-UHFFFAOYSA-M benzyl(triethyl)azanium;chloride Chemical group [Cl-].CC[N+](CC)(CC)CC1=CC=CC=C1 HTZCNXWZYVXIMZ-UHFFFAOYSA-M 0.000 claims description 3
- HBDCXHTYTDOPNI-UHFFFAOYSA-N ethyl 2-(benzylideneamino)-4-cyano-2-(difluoromethyl)butanoate Chemical compound CCOC(=O)C(CCC#N)(C(F)F)N=CC1=CC=CC=C1 HBDCXHTYTDOPNI-UHFFFAOYSA-N 0.000 claims description 3
- 239000003444 phase transfer catalyst Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 238000001953 recrystallisation Methods 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 239000002841 Lewis acid Substances 0.000 claims description 2
- 229910000102 alkali metal hydride Inorganic materials 0.000 claims description 2
- 150000008046 alkali metal hydrides Chemical class 0.000 claims description 2
- 150000003973 alkyl amines Chemical group 0.000 claims description 2
- 239000012024 dehydrating agents Substances 0.000 claims description 2
- 150000007517 lewis acids Chemical class 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 230000029936 alkylation Effects 0.000 claims 4
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- 230000007704 transition Effects 0.000 claims 2
- FJPAMFNRCFEGSD-QYCVXMPOSA-N (2s)-2,5-diamino-2-(difluoromethyl)pentanoic acid;hydrate;hydrochloride Chemical compound O.Cl.NCCC[C@@](N)(C(F)F)C(O)=O FJPAMFNRCFEGSD-QYCVXMPOSA-N 0.000 claims 1
- 239000007868 Raney catalyst Substances 0.000 claims 1
- 229910000564 Raney nickel Inorganic materials 0.000 claims 1
- 238000010531 catalytic reduction reaction Methods 0.000 claims 1
- 239000012442 inert solvent Substances 0.000 claims 1
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 33
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 22
- 239000011541 reaction mixture Substances 0.000 description 20
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 17
- 239000000203 mixture Substances 0.000 description 14
- 239000000706 filtrate Substances 0.000 description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000000543 intermediate Substances 0.000 description 12
- 239000002904 solvent Substances 0.000 description 12
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 11
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000010992 reflux Methods 0.000 description 9
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 8
- 239000012043 crude product Substances 0.000 description 8
- SKMPRICWLXUMRY-UHFFFAOYSA-N ethyl 2-(benzhydrylideneamino)-4-cyanobutanoate Chemical compound C=1C=CC=CC=1C(=NC(CCC#N)C(=O)OCC)C1=CC=CC=C1 SKMPRICWLXUMRY-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical group CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 6
- 239000003610 charcoal Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000005903 acid hydrolysis reaction Methods 0.000 description 5
- 125000005907 alkyl ester group Chemical group 0.000 description 5
- UUQOWQUJCSAGCD-UHFFFAOYSA-N ethyl 2,5-diamino-2-(difluoromethyl)pentanoate;dihydrochloride Chemical compound Cl.Cl.CCOC(=O)C(N)(C(F)F)CCCN UUQOWQUJCSAGCD-UHFFFAOYSA-N 0.000 description 5
- DKAGJZJALZXOOV-UHFFFAOYSA-N hydrate;hydrochloride Chemical compound O.Cl DKAGJZJALZXOOV-UHFFFAOYSA-N 0.000 description 5
- 235000010755 mineral Nutrition 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-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
- 238000013019 agitation Methods 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 4
- 239000007810 chemical reaction solvent Substances 0.000 description 4
- QUGJYNGNUBHTNS-UHFFFAOYSA-N ethyl 2-(benzhydrylideneamino)acetate Chemical compound C=1C=CC=CC=1C(=NCC(=O)OCC)C1=CC=CC=C1 QUGJYNGNUBHTNS-UHFFFAOYSA-N 0.000 description 4
- 229910000856 hastalloy Inorganic materials 0.000 description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 4
- 235000019341 magnesium sulphate Nutrition 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical class CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 125000006239 protecting group Chemical group 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 150000003624 transition metals Chemical class 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- AHLPHDHHMVZTML-BYPYZUCNSA-N L-Ornithine Chemical compound NCCC[C@H](N)C(O)=O AHLPHDHHMVZTML-BYPYZUCNSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- AHLPHDHHMVZTML-UHFFFAOYSA-N Orn-delta-NH2 Natural products NCCCC(N)C(O)=O AHLPHDHHMVZTML-UHFFFAOYSA-N 0.000 description 3
- UTJLXEIPEHZYQJ-UHFFFAOYSA-N Ornithine Natural products OC(=O)C(C)CCCN UTJLXEIPEHZYQJ-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 235000019439 ethyl acetate Nutrition 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 150000004678 hydrides Chemical class 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 229910052987 metal hydride Inorganic materials 0.000 description 3
- 150000004681 metal hydrides Chemical class 0.000 description 3
- OKKJLVBELUTLKV-VMNATFBRSA-N methanol-d1 Chemical compound [2H]OC OKKJLVBELUTLKV-VMNATFBRSA-N 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 229960003104 ornithine Drugs 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 3
- TXTWXQXDMWILOF-UHFFFAOYSA-N (2-ethoxy-2-oxoethyl)azanium;chloride Chemical compound [Cl-].CCOC(=O)C[NH3+] TXTWXQXDMWILOF-UHFFFAOYSA-N 0.000 description 2
- UUFQTNFCRMXOAE-UHFFFAOYSA-N 1-methylmethylene Chemical group C[CH] UUFQTNFCRMXOAE-UHFFFAOYSA-N 0.000 description 2
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 2
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 2
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-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
- 239000005909 Kieselgur Substances 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000011260 aqueous acid Substances 0.000 description 2
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 2
- 239000012965 benzophenone Substances 0.000 description 2
- 150000001733 carboxylic acid esters Chemical group 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- NTNZTEQNFHNYBC-UHFFFAOYSA-N ethyl 2-aminoacetate Chemical compound CCOC(=O)CN NTNZTEQNFHNYBC-UHFFFAOYSA-N 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000002560 nitrile group Chemical group 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- BHKKSKOHRFHHIN-MRVPVSSYSA-N 1-[[2-[(1R)-1-aminoethyl]-4-chlorophenyl]methyl]-2-sulfanylidene-5H-pyrrolo[3,2-d]pyrimidin-4-one Chemical compound N[C@H](C)C1=C(CN2C(NC(C3=C2C=CN3)=O)=S)C=CC(=C1)Cl BHKKSKOHRFHHIN-MRVPVSSYSA-N 0.000 description 1
- VKDGNNYJFSHYKD-UHFFFAOYSA-N 2,5-diamino-2-(difluoromethyl)pentanoic acid;hydron;chloride Chemical compound Cl.NCCCC(N)(C(F)F)C(O)=O VKDGNNYJFSHYKD-UHFFFAOYSA-N 0.000 description 1
- GOJUJUVQIVIZAV-UHFFFAOYSA-N 2-amino-4,6-dichloropyrimidine-5-carbaldehyde Chemical group NC1=NC(Cl)=C(C=O)C(Cl)=N1 GOJUJUVQIVIZAV-UHFFFAOYSA-N 0.000 description 1
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 1
- GNHMRTZZNHZDDM-UHFFFAOYSA-N 3-chloropropionitrile Chemical compound ClCCC#N GNHMRTZZNHZDDM-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- QCQCHGYLTSGIGX-GHXANHINSA-N 4-[[(3ar,5ar,5br,7ar,9s,11ar,11br,13as)-5a,5b,8,8,11a-pentamethyl-3a-[(5-methylpyridine-3-carbonyl)amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3h-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid Chemical compound N([C@@]12CC[C@@]3(C)[C@]4(C)CC[C@H]5C(C)(C)[C@@H](OC(=O)CC(C)(C)C(O)=O)CC[C@]5(C)[C@H]4CC[C@@H]3C1=C(C(C2)=O)C(C)C)C(=O)C1=CN=CC(C)=C1 QCQCHGYLTSGIGX-GHXANHINSA-N 0.000 description 1
- 229960000549 4-dimethylaminophenol Drugs 0.000 description 1
- 101150041968 CDC13 gene Proteins 0.000 description 1
- 101100440696 Caenorhabditis elegans cor-1 gene Proteins 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical group NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 102000020897 Formins Human genes 0.000 description 1
- 108091022623 Formins Proteins 0.000 description 1
- 101100134922 Gallus gallus COR5 gene 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
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical class OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 238000006845 Michael addition reaction Methods 0.000 description 1
- 238000006957 Michael reaction Methods 0.000 description 1
- 101001003146 Mus musculus Interleukin-11 receptor subunit alpha-1 Proteins 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-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
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 1
- 238000005917 acylation reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004705 aldimines Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- BLJNPOIVYYWHMA-UHFFFAOYSA-N alumane;cobalt Chemical group [AlH3].[Co] BLJNPOIVYYWHMA-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- KXHPPCXNWTUNSB-UHFFFAOYSA-M benzyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1=CC=CC=C1 KXHPPCXNWTUNSB-UHFFFAOYSA-M 0.000 description 1
- GRCDJFHYVYUNHM-UHFFFAOYSA-N bromodifluoromethane Chemical compound FC(F)Br GRCDJFHYVYUNHM-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001734 carboxylic acid salts Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- AOGYCOYQMAVAFD-UHFFFAOYSA-N chlorocarbonic acid Chemical class OC(Cl)=O AOGYCOYQMAVAFD-UHFFFAOYSA-N 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 238000010961 commercial manufacture process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005595 deprotonation Effects 0.000 description 1
- 238000010537 deprotonation reaction Methods 0.000 description 1
- YSLFMGDEEXOKHF-UHFFFAOYSA-N difluoro(iodo)methane Chemical compound FC(F)I YSLFMGDEEXOKHF-UHFFFAOYSA-N 0.000 description 1
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- UUQOWQUJCSAGCD-YCBDHFTFSA-N ethyl (2s)-2,5-diamino-2-(difluoromethyl)pentanoate;dihydrochloride Chemical compound Cl.Cl.CCOC(=O)[C@](N)(C(F)F)CCCN UUQOWQUJCSAGCD-YCBDHFTFSA-N 0.000 description 1
- ABHPLOWOQDGWMV-UHFFFAOYSA-N ethyl 2-(benzylideneamino)-4-cyanobutanoate Chemical compound CCOC(=O)C(CCC#N)N=CC1=CC=CC=C1 ABHPLOWOQDGWMV-UHFFFAOYSA-N 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- LZWQNOHZMQIFBX-UHFFFAOYSA-N lithium;2-methylpropan-2-olate Chemical compound [Li+].CC(C)(C)[O-] LZWQNOHZMQIFBX-UHFFFAOYSA-N 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004366 reverse phase liquid chromatography Methods 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- WRIKHQLVHPKCJU-UHFFFAOYSA-N sodium bis(trimethylsilyl)amide Chemical class C[Si](C)(C)N([Na])[Si](C)(C)C WRIKHQLVHPKCJU-UHFFFAOYSA-N 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- YMBCJWGVCUEGHA-UHFFFAOYSA-M tetraethylammonium chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC YMBCJWGVCUEGHA-UHFFFAOYSA-M 0.000 description 1
- 229940100611 topical cream Drugs 0.000 description 1
- MXSVLWZRHLXFKH-UHFFFAOYSA-N triphenylborane Chemical compound C1=CC=CC=C1B(C=1C=CC=CC=1)C1=CC=CC=C1 MXSVLWZRHLXFKH-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/26—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing carboxyl groups by reaction with HCN, or a salt thereof, and amines, or from aminonitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/24—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the same saturated acyclic carbon skeleton
- C07C255/29—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the same saturated acyclic carbon skeleton containing cyano groups and acylated amino groups bound to the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/04—Formation of amino groups in compounds containing carboxyl groups
- C07C227/10—Formation of amino groups in compounds containing carboxyl groups with simultaneously increasing the number of carbon atoms in the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/14—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof
- C07C227/16—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions not involving the amino or carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/14—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof
- C07C227/18—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/22—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/38—Separation; Purification; Stabilisation; Use of additives
- C07C227/40—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/38—Separation; Purification; Stabilisation; Use of additives
- C07C227/40—Separation; Purification
- C07C227/42—Crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/24—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the same saturated acyclic carbon skeleton
- C07C255/28—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the same saturated acyclic carbon skeleton containing cyano groups, amino groups and carboxyl groups, other than cyano groups, bound to the carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Hydrogenated Pyridines (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31583201P | 2001-08-29 | 2001-08-29 | |
| US60/315,832 | 2001-08-29 | ||
| PCT/US2002/026990 WO2003020209A2 (en) | 2001-08-29 | 2002-08-23 | Processes for the production of alpha-difluoromethyl ornithine (dfmo) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2002331714A1 AU2002331714A1 (en) | 2003-06-05 |
| AU2002331714B2 true AU2002331714B2 (en) | 2007-11-01 |
Family
ID=23226251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2002331714A Ceased AU2002331714B2 (en) | 2001-08-29 | 2002-08-23 | Processes for the production of alpha-difluoromethyl ornithine (DFMO) |
Country Status (16)
| Country | Link |
|---|---|
| US (2) | US6730809B2 (https=) |
| EP (1) | EP1421058B1 (https=) |
| JP (1) | JP2005501881A (https=) |
| KR (1) | KR100668473B1 (https=) |
| CN (2) | CN1279019C (https=) |
| AR (1) | AR038450A1 (https=) |
| AT (1) | ATE466836T1 (https=) |
| AU (1) | AU2002331714B2 (https=) |
| BR (1) | BR0212153A (https=) |
| CA (1) | CA2457854C (https=) |
| DE (1) | DE60236295D1 (https=) |
| IL (2) | IL160314A0 (https=) |
| MX (1) | MXPA04001837A (https=) |
| NZ (1) | NZ531331A (https=) |
| RU (1) | RU2004108856A (https=) |
| WO (1) | WO2003020209A2 (https=) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7261878B2 (en) | 2001-08-10 | 2007-08-28 | The Gillette Company | Reduction of hair growth |
| US6730809B2 (en) * | 2001-08-29 | 2004-05-04 | Women First Healthcare, Inc. | Processes for the production of α-difluoromethyl ornithine (DFMO) |
| US7015349B2 (en) | 2003-03-26 | 2006-03-21 | The Gillette Company | Reduction of hair growth |
| US20100120727A1 (en) * | 2008-11-12 | 2010-05-13 | Kyphia Pharmaceuticals, Inc. | Eflornithine Prodrugs, Conjugates and Salts, and Methods of Use Thereof |
| US20130197088A1 (en) * | 2010-03-12 | 2013-08-01 | Robert A. Casero, JR. | Compositions and Methods for Combinations of Oligoamines with 2-Difluoromethylornithine (DFMO) |
| JP2012116776A (ja) * | 2010-11-30 | 2012-06-21 | Kyoto Univ | ホスホン酸ジエステル誘導体の製造法 |
| CN103724218B (zh) * | 2014-01-22 | 2015-08-12 | 呼伦贝尔东北阜丰生物科技有限公司 | 一种赖氨酸盐酸盐结晶新工艺 |
| CN105017244A (zh) * | 2014-04-16 | 2015-11-04 | 上海药明康德新药开发有限公司 | 顺反叔丁基-4-氧六氢化-1H-吡咯[3,4-c]吡啶-2(3H)-羧酸叔丁酯的合成方法 |
| CA2976106A1 (en) * | 2015-02-12 | 2016-08-18 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Methods for treating neuroblastoma |
| CN105660637B (zh) * | 2016-01-07 | 2018-04-24 | 南京中医药大学 | 防治当归早薹的药物及其应用 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309442A (en) * | 1977-07-11 | 1982-01-05 | Merrell Toraude Et Compagnie | Method for controlling fertility in mammals |
| CH672124A5 (en) * | 1987-07-03 | 1989-10-31 | Lonza Ag | 2-di:fluoromethyl-2-cyanoethyl malonic acid lower alkyl ester(s) - obtd. by reacting di:alkyl-malonate with acrylonitrile, then with chloro:fluoromethane in presence of alkali, etc |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4201788A (en) | 1976-10-20 | 1980-05-06 | University Patents, Inc. | Process for alleviating proliferative skin diseases |
| US4413141A (en) | 1977-07-11 | 1983-11-01 | Merrell Toraude Et Compagnie | 2-(Difluoromethyl)-2,5-diaminopentanoic acid |
| US4421768A (en) | 1982-08-11 | 1983-12-20 | Merrell Toraude Et Compagnie | Fluorinated diamino-heptene and-heptyne derivatives |
| US4720489A (en) | 1984-10-15 | 1988-01-19 | Douglas Shander | Hair growth modification with ornithine decarboxylase inhibitors |
| US5096911A (en) | 1990-06-25 | 1992-03-17 | Ahluwalia Gurpreet S | Alteration of rate and character of hair growth |
| DE69128034T2 (de) | 1990-08-14 | 1998-04-16 | Handelman Joseph H | Enzymatische änderung des haarwuchses |
| US5095007A (en) | 1990-10-24 | 1992-03-10 | Ahluwalia Gurpreet S | Alteration of rate and character of hair growth |
| US5648394A (en) | 1993-05-27 | 1997-07-15 | Boxall; Brian Alfred | Topical composition for inhibiting hair growth |
| US5851537A (en) | 1996-02-02 | 1998-12-22 | Cancer Technologies, Inc. | Topical application of α-DFMO for preventing skin cancer |
| AU5526898A (en) | 1996-12-13 | 1998-07-03 | Ilex Oncology, Inc. | Isomeric pharmaceutical formulation containing dfmo for the treatment of cancer |
| US6730809B2 (en) * | 2001-08-29 | 2004-05-04 | Women First Healthcare, Inc. | Processes for the production of α-difluoromethyl ornithine (DFMO) |
-
2002
- 2002-08-19 US US10/224,890 patent/US6730809B2/en not_active Expired - Lifetime
- 2002-08-23 KR KR1020047002674A patent/KR100668473B1/ko not_active Expired - Fee Related
- 2002-08-23 IL IL16031402A patent/IL160314A0/xx unknown
- 2002-08-23 DE DE60236295T patent/DE60236295D1/de not_active Expired - Lifetime
- 2002-08-23 BR BR0212153-0A patent/BR0212153A/pt not_active IP Right Cessation
- 2002-08-23 AU AU2002331714A patent/AU2002331714B2/en not_active Ceased
- 2002-08-23 JP JP2003524523A patent/JP2005501881A/ja active Pending
- 2002-08-23 WO PCT/US2002/026990 patent/WO2003020209A2/en not_active Ceased
- 2002-08-23 RU RU2004108856/04A patent/RU2004108856A/ru not_active Application Discontinuation
- 2002-08-23 EP EP02768695A patent/EP1421058B1/en not_active Expired - Lifetime
- 2002-08-23 CN CNB028196414A patent/CN1279019C/zh not_active Expired - Fee Related
- 2002-08-23 CA CA002457854A patent/CA2457854C/en not_active Expired - Fee Related
- 2002-08-23 NZ NZ531331A patent/NZ531331A/en not_active IP Right Cessation
- 2002-08-23 AT AT02768695T patent/ATE466836T1/de not_active IP Right Cessation
- 2002-08-23 CN CNB2005100709165A patent/CN100478329C/zh not_active Expired - Fee Related
- 2002-08-23 MX MXPA04001837A patent/MXPA04001837A/es unknown
- 2002-08-29 AR ARP020103242A patent/AR038450A1/es unknown
-
2004
- 2004-02-10 IL IL160314A patent/IL160314A/en not_active IP Right Cessation
- 2004-02-26 US US10/788,728 patent/US7012158B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309442A (en) * | 1977-07-11 | 1982-01-05 | Merrell Toraude Et Compagnie | Method for controlling fertility in mammals |
| CH672124A5 (en) * | 1987-07-03 | 1989-10-31 | Lonza Ag | 2-di:fluoromethyl-2-cyanoethyl malonic acid lower alkyl ester(s) - obtd. by reacting di:alkyl-malonate with acrylonitrile, then with chloro:fluoromethane in presence of alkali, etc |
Non-Patent Citations (1)
| Title |
|---|
| Bey et al. J. Org. Chem. 1979, 44(15), 2732-2742 * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2004108856A (ru) | 2005-09-20 |
| EP1421058B1 (en) | 2010-05-05 |
| WO2003020209A3 (en) | 2004-03-04 |
| IL160314A0 (en) | 2004-07-25 |
| CN1564806A (zh) | 2005-01-12 |
| CA2457854A1 (en) | 2003-03-13 |
| EP1421058A4 (en) | 2006-02-08 |
| CN1680293A (zh) | 2005-10-12 |
| US20040171876A1 (en) | 2004-09-02 |
| AR038450A1 (es) | 2005-01-19 |
| CN100478329C (zh) | 2009-04-15 |
| CA2457854C (en) | 2006-10-31 |
| IL160314A (en) | 2009-11-18 |
| JP2005501881A (ja) | 2005-01-20 |
| US6730809B2 (en) | 2004-05-04 |
| US7012158B2 (en) | 2006-03-14 |
| HK1083213A1 (zh) | 2006-06-30 |
| US20030083384A1 (en) | 2003-05-01 |
| CN1279019C (zh) | 2006-10-11 |
| EP1421058A2 (en) | 2004-05-26 |
| DE60236295D1 (de) | 2010-06-17 |
| WO2003020209A2 (en) | 2003-03-13 |
| KR20040064258A (ko) | 2004-07-16 |
| ATE466836T1 (de) | 2010-05-15 |
| BR0212153A (pt) | 2004-07-13 |
| NZ531331A (en) | 2004-06-25 |
| MXPA04001837A (es) | 2005-04-19 |
| KR100668473B1 (ko) | 2007-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2103601B1 (en) | Process for production of phenylalanine derivatives having quinazolinedione skeletons and intermediates for the production | |
| KR100192007B1 (ko) | 락탐 유도체의 제조방법 | |
| AU2007218140B2 (en) | Process for the preparation of adamantanamines | |
| AU2002331714B2 (en) | Processes for the production of alpha-difluoromethyl ornithine (DFMO) | |
| AU2002331714A1 (en) | Processes for the production of alpha-difluoromethyl ornithine (DFMO) | |
| US7632864B2 (en) | Gabapentin analogues and process thereof | |
| AU2009229027A1 (en) | Method for preparing combretastatin | |
| CN115594613A (zh) | 依度沙班中间体及其制备方法 | |
| TWI777079B (zh) | 稠合三環γ-胺基酸衍生物的製備方法及其中間體 | |
| EP1144360B1 (en) | A method for the synthesis of compounds of formula 1 and derivatives thereof | |
| CA2241933C (en) | Process for preparing alkoxypyrazine derivatives | |
| US6114566A (en) | 4-cyano-3-hydroxybutanoyl hydrazines, derivatives and process for the preparation thereof | |
| HK1083213B (en) | Intermediates useful for the preparation of alpha-difluoromethyl ornithine (dfmo) and processes for preparation the same | |
| KR101896349B1 (ko) | 디미라세탐의 제조 방법 | |
| US5948935A (en) | Process and intermediates for (s)-α-amino-1-carboxycyclopentaneacetic acid | |
| EP4653420A1 (en) | Method for preparing chiral amino alcohol pharmaceutical intermediates | |
| CN119176848A (zh) | 一种合成高纯度伪脯氨酸二肽杂环的方法 | |
| JPWO2001017944A1 (ja) | 光学活性アミノアルコールの製造方法 | |
| CN118930443A (zh) | 曲美布汀中间体和马来酸曲美布汀的合成方法 | |
| JP2001302611A (ja) | 5−トリフルオロメチルジヒドロウラシルの製造法 | |
| EP0573954A1 (en) | 5-Acyl-4,5,6,7-tetrahydrothieno 3,2-c pyridine-2-carboxylic acid derivative and process for producing the same | |
| EP1092705A1 (en) | Process for the preparation of amides | |
| HK1133001A1 (en) | Novel method for producing 4,4'-(1-methyl-1,2-ethanediyl)-bis-(2,6-piperazinedione) | |
| HK1133001B (en) | Novel method for producing 4,4'-(1-methyl-1,2-ethanediyl)-bis-(2,6-piperazinedione) | |
| JPWO1997043265A1 (ja) | ピリミジン化合物の製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC1 | Assignment before grant (sect. 113) |
Owner name: SKINMEDICA, INC. Free format text: FORMER APPLICANT(S): WOMEN FIRST HEALTHCARE, INC. |
|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |