IL106074A - Process for separating anomers of 2-deoxy-2,2-difluoro-D-pantopornosyl alkylsulfonate - Google Patents
Process for separating anomers of 2-deoxy-2,2-difluoro-D-pantopornosyl alkylsulfonateInfo
- Publication number
- IL106074A IL106074A IL106074A IL10607493A IL106074A IL 106074 A IL106074 A IL 106074A IL 106074 A IL106074 A IL 106074A IL 10607493 A IL10607493 A IL 10607493A IL 106074 A IL106074 A IL 106074A
- Authority
- IL
- Israel
- Prior art keywords
- deoxy
- difluoro
- ribofuranosyl
- benzoyl
- methanesulfonate
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 150000008052 alkyl sulfonates Chemical class 0.000 title description 2
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 239000013078 crystal Substances 0.000 claims description 29
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 15
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 claims description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 5
- 125000006239 protecting group Chemical group 0.000 claims description 5
- UBOXGVDOUJQMTN-UHFFFAOYSA-N 1,1,2-trichloroethane Chemical compound ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 claims description 4
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 4
- 229940090181 propyl acetate Drugs 0.000 claims description 4
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000008096 xylene Substances 0.000 claims description 4
- 229940072049 amyl acetate Drugs 0.000 claims description 3
- PGMYKACGEOXYJE-UHFFFAOYSA-N anhydrous amyl acetate Natural products CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 claims description 3
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 3
- 150000003738 xylenes Chemical class 0.000 claims description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 2
- 229940075894 denatured ethanol Drugs 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 claims description 2
- 229940011051 isopropyl acetate Drugs 0.000 claims description 2
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 abstract description 4
- -1 2 -deoxyribo-furanosyl Chemical class 0.000 description 17
- 238000010899 nucleation Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 5
- 239000002777 nucleoside Substances 0.000 description 4
- PYMYPHUHKUWMLA-LMVFSUKVSA-N Ribose Natural products OC[C@@H](O)[C@@H](O)[C@@H](O)C=O PYMYPHUHKUWMLA-LMVFSUKVSA-N 0.000 description 3
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 125000003835 nucleoside group Chemical group 0.000 description 3
- HMFHBZSHGGEWLO-SOOFDHNKSA-N D-ribofuranose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H]1O HMFHBZSHGGEWLO-SOOFDHNKSA-N 0.000 description 2
- HMFHBZSHGGEWLO-UHFFFAOYSA-N alpha-D-Furanose-Ribose Natural products OCC1OC(O)C(O)C1O HMFHBZSHGGEWLO-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical compound [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- MLFHJEHSLIIPHL-UHFFFAOYSA-N isoamyl acetate Chemical compound CC(C)CCOC(C)=O MLFHJEHSLIIPHL-UHFFFAOYSA-N 0.000 description 2
- 125000006678 phenoxycarbonyl group Chemical group 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- 238000005292 vacuum distillation Methods 0.000 description 2
- LDHXMQXUOUZOLF-HERZVMAMSA-N (4r,5r)-3,3-difluoro-5-(hydroxymethyl)oxolane-2,4-diol Chemical compound OC[C@H]1OC(O)C(F)(F)[C@@H]1O LDHXMQXUOUZOLF-HERZVMAMSA-N 0.000 description 1
- LSEFXLGTUCVBPE-UHFFFAOYSA-N 1h-imidazol-2-ylcarbamic acid Chemical compound OC(=O)NC1=NC=CN1 LSEFXLGTUCVBPE-UHFFFAOYSA-N 0.000 description 1
- YQTCQNIPQMJNTI-UHFFFAOYSA-N 2,2-dimethylpropan-1-one Chemical group CC(C)(C)[C]=O YQTCQNIPQMJNTI-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 125000005917 3-methylpentyl group Chemical group 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical class CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- SRBFZHDQGSBBOR-MBMOQRBOSA-N alpha-D-arabinopyranose Chemical group O[C@@H]1CO[C@H](O)[C@@H](O)[C@@H]1O SRBFZHDQGSBBOR-MBMOQRBOSA-N 0.000 description 1
- 230000000118 anti-neoplastic effect Effects 0.000 description 1
- 229940034982 antineoplastic agent Drugs 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 239000003443 antiviral agent Substances 0.000 description 1
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 description 1
- 125000000480 butynyl group Chemical group [*]C#CC([H])([H])C([H])([H])[H] 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000004663 dialkyl amino group Chemical group 0.000 description 1
- 125000005982 diphenylmethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 238000000434 field desorption mass spectrometry Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229940117955 isoamyl acetate Drugs 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012452 mother liquor Substances 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
- 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
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- PWXJULSLLONQHY-UHFFFAOYSA-N phenylcarbamic acid Chemical compound OC(=O)NC1=CC=CC=C1 PWXJULSLLONQHY-UHFFFAOYSA-N 0.000 description 1
- UYWQUFXKFGHYNT-UHFFFAOYSA-N phenylmethyl ester of formic acid Natural products O=COCC1=CC=CC=C1 UYWQUFXKFGHYNT-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002212 purine nucleoside Substances 0.000 description 1
- 239000002718 pyrimidine nucleoside Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- ILMRJRBKQSSXGY-UHFFFAOYSA-N tert-butyl(dimethyl)silicon Chemical group C[Si](C)C(C)(C)C ILMRJRBKQSSXGY-UHFFFAOYSA-N 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
- 125000005958 tetrahydrothienyl group Chemical group 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- 125000004665 trialkylsilyl group Chemical group 0.000 description 1
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H13/00—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids
- C07H13/02—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids
- C07H13/08—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals directly attached to carbocyclic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H11/00—Compounds containing saccharide radicals esterified by inorganic acids; Metal salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/902,303 US5256797A (en) | 1992-06-22 | 1992-06-22 | Process for separating 2-deoxy-2,2-difluoro-D-ribofuranosyl alkylsulfonate anomers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL106074A0 IL106074A0 (en) | 1993-10-20 |
| IL106074A true IL106074A (en) | 1998-02-22 |
Family
ID=25415647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL106074A IL106074A (en) | 1992-06-22 | 1993-06-21 | Process for separating anomers of 2-deoxy-2,2-difluoro-D-pantopornosyl alkylsulfonate |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US5256797A (Direct) |
| EP (1) | EP0576232B1 (Direct) |
| JP (1) | JPH0656867A (Direct) |
| KR (1) | KR100302087B1 (Direct) |
| AT (1) | ATE149505T1 (Direct) |
| BR (1) | BR9302426A (Direct) |
| CA (1) | CA2098888C (Direct) |
| CY (1) | CY2091B1 (Direct) |
| DE (1) | DE69308391T2 (Direct) |
| DK (1) | DK0576232T3 (Direct) |
| ES (1) | ES2100462T3 (Direct) |
| GR (1) | GR3023060T3 (Direct) |
| HU (1) | HU217976B (Direct) |
| IL (1) | IL106074A (Direct) |
| MX (1) | MX9303714A (Direct) |
| TW (1) | TW233300B (Direct) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2103433T3 (es) * | 1992-06-22 | 1997-09-16 | Lilly Co Eli | Procedimiento para preparar derivados de 1-halo-2-desoxi-2,2-difluoro-d-ribofuranosilo enriquecidos en anomero alfa. |
| MY164523A (en) | 2000-05-23 | 2017-12-29 | Univ Degli Studi Cagliari | Methods and compositions for treating hepatitis c virus |
| IL153020A0 (en) | 2000-05-26 | 2003-06-24 | Idenix Cayman Ltd | Methods and compositions for treating flaviviruses and pestiviruses |
| US7608600B2 (en) | 2002-06-28 | 2009-10-27 | Idenix Pharmaceuticals, Inc. | Modified 2′ and 3′-nucleoside prodrugs for treating Flaviviridae infections |
| MXPA04012802A (es) | 2002-06-28 | 2005-04-19 | Idenix Cayman Ltd | Ester 2'-c-metil-3'-o-l-valina de ribofuranosil-citidina para el tratamiento de infecciones por flaviviridae. |
| LT1576138T (lt) | 2002-11-15 | 2017-06-26 | Idenix Pharmaceuticals Llc | 2`-šakoti nukleozidai derinyje su interferonu ir flaviviridae mutacija |
| US7598373B2 (en) | 2002-12-12 | 2009-10-06 | Idenix Pharmaceuticals, Inc. | Process for the production of 2-C-methyl-D-ribonolactone |
| CA2571675A1 (en) * | 2004-06-23 | 2006-01-05 | Idenix (Cayman) Limited | 5-aza-7-deazapurine derivatives for treating infections with flaviviridae |
| US7214791B2 (en) * | 2004-07-01 | 2007-05-08 | Shenzhen Hande Technology Co., Ltd. | Method for preparation of 2′-deoxy-2′, 2′-difluoro-β-cytidine or pharmaceutically acceptable salts thereof by using 1,6-anhydro-β-d-glucose as raw material |
| AT502221A1 (de) * | 2005-07-20 | 2007-02-15 | Pharmacon Forschung & Beratung Gmbh | Homogemcitabine, verfahren zu ihrer herstellung sowie deren verwendung |
| CA2634749C (en) | 2005-12-23 | 2014-08-19 | Idenix Pharmaceuticals, Inc. | Process for preparing a synthetic intermediate for preparation of branched nucleosides |
| WO2007092705A2 (en) * | 2006-02-07 | 2007-08-16 | Chemagis Ltd. | Process for preparing gemcitabine and associated intermediates |
| US20070249823A1 (en) * | 2006-04-20 | 2007-10-25 | Chemagis Ltd. | Process for preparing gemcitabine and associated intermediates |
| US20080262215A1 (en) * | 2007-04-23 | 2008-10-23 | Chemagis Ltd. | Gemcitabine production process |
| GB0812895D0 (en) | 2008-07-15 | 2008-08-20 | Glycom As | Crystalline carbohydrate derivative |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4526988A (en) * | 1983-03-10 | 1985-07-02 | Eli Lilly And Company | Difluoro antivirals and intermediate therefor |
| US4965374A (en) * | 1987-08-28 | 1990-10-23 | Eli Lilly And Company | Process for and intermediates of 2',2'-difluoronucleosides |
| DE3856527T2 (de) * | 1987-08-28 | 2002-10-31 | Eli Lilly And Co., Indianapolis | Stereoselektives Verfahren zur Herstellung von geschützten 2',2'-difluorlactonen |
-
1992
- 1992-06-22 US US07/902,303 patent/US5256797A/en not_active Expired - Lifetime
-
1993
- 1993-06-21 DK DK93304821.7T patent/DK0576232T3/da active
- 1993-06-21 EP EP93304821A patent/EP0576232B1/en not_active Expired - Lifetime
- 1993-06-21 IL IL106074A patent/IL106074A/en not_active IP Right Cessation
- 1993-06-21 JP JP5149152A patent/JPH0656867A/ja active Pending
- 1993-06-21 DE DE69308391T patent/DE69308391T2/de not_active Expired - Lifetime
- 1993-06-21 HU HU9301826A patent/HU217976B/hu not_active IP Right Cessation
- 1993-06-21 CA CA002098888A patent/CA2098888C/en not_active Expired - Lifetime
- 1993-06-21 ES ES93304821T patent/ES2100462T3/es not_active Expired - Lifetime
- 1993-06-21 BR BR9302426A patent/BR9302426A/pt not_active Application Discontinuation
- 1993-06-21 AT AT93304821T patent/ATE149505T1/de active
- 1993-06-21 KR KR1019930011306A patent/KR100302087B1/ko not_active Expired - Fee Related
- 1993-06-21 MX MX9303714A patent/MX9303714A/es unknown
- 1993-06-22 TW TW082104993A patent/TW233300B/zh not_active IP Right Cessation
-
1997
- 1997-04-08 GR GR970400728T patent/GR3023060T3/el unknown
-
1998
- 1998-06-18 CY CY9800012A patent/CY2091B1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HK1006022A1 (en) | 1999-02-05 |
| HU217976B (hu) | 2000-05-28 |
| GR3023060T3 (en) | 1997-07-30 |
| US5256797A (en) | 1993-10-26 |
| BR9302426A (pt) | 1994-01-11 |
| CA2098888A1 (en) | 1993-12-23 |
| DK0576232T3 (da) | 1997-07-21 |
| CY2091B1 (en) | 2002-04-05 |
| HUT64551A (en) | 1994-01-28 |
| KR100302087B1 (ko) | 2001-10-22 |
| ATE149505T1 (de) | 1997-03-15 |
| EP0576232B1 (en) | 1997-03-05 |
| JPH0656867A (ja) | 1994-03-01 |
| DE69308391T2 (de) | 1997-07-17 |
| DE69308391D1 (de) | 1997-04-10 |
| ES2100462T3 (es) | 1997-06-16 |
| MX9303714A (es) | 1994-01-31 |
| IL106074A0 (en) | 1993-10-20 |
| CA2098888C (en) | 2003-07-29 |
| KR940000473A (ko) | 1994-01-03 |
| TW233300B (Direct) | 1994-11-01 |
| EP0576232A1 (en) | 1993-12-29 |
| HU9301826D0 (en) | 1993-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2098888C (en) | Process for separating 2-deoxy-2,2-difluoro-d-ribofuranosyl alkylsulfonate anomers | |
| EP0646125B1 (en) | 1,5-anhydrohexitol nucleoside analogues and pharmaceutical use thereof | |
| CA2098882C (en) | Process for preparing alpha-anomer enriched 2-deoxy-2,2-difluoro-d-ribofuranosyl sulfonates | |
| US5218106A (en) | 2',3'-dideoxy-2'-fluoronucleosides | |
| WO1996016072A1 (en) | Process for purifying and isolating 2'-deoxy-2',2'-difluoronucleosides | |
| US5744597A (en) | Stereoselective anion glycosylation process for preparing 2'-deoxy-2',2'-difluoronucleosides and 2'-deoxy-2'-fluoronucleosides | |
| FR2709754A1 (fr) | Composés 2' ou 3'-déoxy- et 2', 3'-didéoxy-beta-L-pentofuranonucléosides, procédé de préparation et application thérapeutique, notamment anti-virale. | |
| IL184957A (en) | Intermediate and process for preparing beta-anomer enriched 21deoxy,21,21-difluoro-d-ribofuranosyl nucleosides | |
| WO1990015812A1 (en) | Intermediate for 2-alkynyladenosine synthesis, production of said intermediate, production of 2-alkynyladenosine from said intermediate, and stable 2-alkynyladenosine derivative | |
| EP0193903B1 (en) | Production of cytosine nucleosides | |
| JP4593917B2 (ja) | プリンヌクレオシドを調製する方法 | |
| CN101311184B (zh) | 2-脱氧-d-核糖衍生物及其制备方法和用途 | |
| US3721664A (en) | Preparation of 5-cytosine nucleosides | |
| JPS63255295A (ja) | ３′−アジド−３′−デオキシチミジン | |
| EP1931693A2 (en) | Process for preparing gemcitabine and associated intermediates | |
| CZ414998A3 (cs) | Nové glykosidy s antikoagulačním účinkem a z nich připravené farmaceutické kompozice | |
| HK1006022B (en) | Process for separating 2-deoxy-2, 2-difluoro-d-ribofuranosyl alkylsulfonate anomers | |
| Lerner | 5, 6-Unsaturated hexofuranosyl glycosides and 5′, 6′-unsaturated hexofuranosyl nucleosides | |
| US5399682A (en) | Process for preparing 2,3'-O-cyclocytidine | |
| RU2108339C1 (ru) | Способ получения 2'-дезоксиксилотимидина, производные d-ксилофуранозы, производные ксилотимидина | |
| CN118852302A (zh) | 一种化合物的制备方法 | |
| CA1076566A (en) | Processes for the preparation of 3',4'-dideoxykanamycin b | |
| Ward et al. | The establishment of an equilibrium between α-and β-2'-deoxynucleosides | |
| HK1184784A (en) | Synthesis of flg |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| EXP | Patent expired |