OA11370A - Process for the synthesis of chloropurine intermediates. - Google Patents
Process for the synthesis of chloropurine intermediates. Download PDFInfo
- Publication number
- OA11370A OA11370A OA1200000101A OA1200000101A OA11370A OA 11370 A OA11370 A OA 11370A OA 1200000101 A OA1200000101 A OA 1200000101A OA 1200000101 A OA1200000101 A OA 1200000101A OA 11370 A OA11370 A OA 11370A
- Authority
- OA
- OAPI
- Prior art keywords
- formula
- acid
- ims
- compound
- carried out
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000543 intermediate Substances 0.000 title description 9
- 230000015572 biosynthetic process Effects 0.000 title description 3
- 238000003786 synthesis reaction Methods 0.000 title description 3
- JBMBVWROWJGFMG-UHFFFAOYSA-N 2-chloro-7h-purine Chemical compound ClC1=NC=C2NC=NC2=N1 JBMBVWROWJGFMG-UHFFFAOYSA-N 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 claims abstract description 28
- 239000002253 acid Substances 0.000 claims abstract description 12
- 238000011065 in-situ storage Methods 0.000 claims abstract description 4
- 125000006239 protecting group Chemical group 0.000 claims abstract description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 26
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical group C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000007062 hydrolysis Effects 0.000 claims description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 6
- GKASDNZWUGIAMG-UHFFFAOYSA-N triethyl orthoformate Chemical compound CCOC(OCC)OCC GKASDNZWUGIAMG-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 125000002252 acyl group Chemical group 0.000 claims description 5
- 239000002585 base Substances 0.000 claims description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- CBOIHMRHGLHBPB-UHFFFAOYSA-N hydroxymethyl Chemical compound O[CH2] CBOIHMRHGLHBPB-UHFFFAOYSA-N 0.000 claims description 4
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 238000007363 ring formation reaction Methods 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 claims description 2
- 239000008139 complexing agent Substances 0.000 claims description 2
- 238000006482 condensation reaction Methods 0.000 claims description 2
- 150000004292 cyclic ethers Chemical class 0.000 claims description 2
- 239000002798 polar solvent Substances 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 125000005270 trialkylamine group Chemical group 0.000 claims description 2
- 239000003125 aqueous solvent Substances 0.000 claims 2
- 229960000443 hydrochloric acid Drugs 0.000 claims 2
- 235000011167 hydrochloric acid Nutrition 0.000 claims 2
- 125000003158 alcohol group Chemical group 0.000 claims 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- -1 carbocyclic purine nucleoside analogue Chemical class 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 2
- 238000006798 ring closing metathesis reaction Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 9
- 239000000725 suspension Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- MCGSCOLBFJQGHM-SCZZXKLOSA-N abacavir Chemical compound C=12N=CN([C@H]3C=C[C@@H](CO)C3)C2=NC(N)=NC=1NC1CC1 MCGSCOLBFJQGHM-SCZZXKLOSA-N 0.000 description 5
- 229960004748 abacavir Drugs 0.000 description 5
- 239000011928 denatured alcohol Substances 0.000 description 5
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- LFKDJXLFVYVEFG-UHFFFAOYSA-N tert-butyl carbamate Chemical compound CC(C)(C)OC(N)=O LFKDJXLFVYVEFG-UHFFFAOYSA-N 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- MWBWWFOAEOYUST-UHFFFAOYSA-N 2-aminopurine Chemical compound NC1=NC=C2N=CNC2=N1 MWBWWFOAEOYUST-UHFFFAOYSA-N 0.000 description 3
- 241000725303 Human immunodeficiency virus Species 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Substances OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- CTSLXHKWHWQRSH-UHFFFAOYSA-N oxalyl chloride Chemical compound ClC(=O)C(Cl)=O CTSLXHKWHWQRSH-UHFFFAOYSA-N 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
- HWSJQFCTYLBBOF-UHFFFAOYSA-N 2,5-diamino-4-hydroxy-1h-pyrimidin-6-one Chemical compound NC1=NC(O)=C(N)C(O)=N1 HWSJQFCTYLBBOF-UHFFFAOYSA-N 0.000 description 1
- ZXWGHENZKVQKPX-UHFFFAOYSA-N 4,6-dichloropyrimidine-2,5-diamine Chemical compound NC1=NC(Cl)=C(N)C(Cl)=N1 ZXWGHENZKVQKPX-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 241001480079 Corymbia calophylla Species 0.000 description 1
- 235000006552 Liquidambar styraciflua Nutrition 0.000 description 1
- 241000701076 Macacine alphaherpesvirus 1 Species 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- 150000005018 aminopurines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000002837 carbocyclic group Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- QQVDYSUDFZZPSU-UHFFFAOYSA-M chloromethylidene(dimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)=CCl QQVDYSUDFZZPSU-UHFFFAOYSA-M 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 150000001941 cyclopentenes Chemical class 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 150000003948 formamides Chemical class 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- XYWHZUCZNRMJGO-UHFFFAOYSA-N n-(2-amino-4,6-dichloropyrimidin-5-yl)formamide Chemical compound NC1=NC(Cl)=C(NC=O)C(Cl)=N1 XYWHZUCZNRMJGO-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- MRWXACSTFXYYMV-FDDDBJFASA-N nebularine Chemical compound O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1N1C2=NC=NC=C2N=C1 MRWXACSTFXYYMV-FDDDBJFASA-N 0.000 description 1
- 229940127073 nucleoside analogue Drugs 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- 229940126532 prescription medicine Drugs 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002212 purine nucleoside Substances 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/40—Heterocyclic compounds containing purine ring systems with halogen atoms or perhalogeno-alkyl radicals directly attached in position 2 or 6
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Saccharide Compounds (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9721780.6A GB9721780D0 (en) | 1997-10-14 | 1997-10-14 | Process for the synthesis of chloropurine intermediates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| OA11370A true OA11370A (en) | 2004-01-27 |
Family
ID=10820547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| OA1200000101A OA11370A (en) | 1997-10-14 | 2000-04-07 | Process for the synthesis of chloropurine intermediates. |
Country Status (44)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SK284594B6 (sk) * | 1997-11-27 | 2005-07-01 | Lonza Ag | Spôsob výroby derivátov aminoalkoholov a ich soli |
| FR2849030A1 (fr) * | 2002-12-20 | 2004-06-25 | Isochem Sa | Procede de preparation des n-(2-amino-4, 6-dihalogenopyrimidin-5-yl) formamides |
| GB0320738D0 (en) * | 2003-09-04 | 2003-10-08 | Glaxo Group Ltd | Novel process |
| CN100465174C (zh) * | 2006-06-13 | 2009-03-04 | 中国科学院上海有机化学研究所 | 制备光学纯阿巴卡韦的方法 |
| KR101109476B1 (ko) * | 2009-06-26 | 2012-01-31 | 현대제철 주식회사 | 실린더 교체용 지그장치 |
| DK3494972T3 (da) | 2010-01-27 | 2024-01-29 | Viiv Healthcare Co | Kombinationer af dolutegravir og lamivudin til behandling af HIV-infektion |
| CN104672239A (zh) * | 2013-11-26 | 2015-06-03 | 上海迪赛诺化学制药有限公司 | 一种采用一锅法制备阿巴卡韦式v中间体的工艺 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4268672A (en) * | 1977-02-09 | 1981-05-19 | The Regents Of The University Of Minnesota | Adenosine deaminase resistant antiviral purine nucleosides and method of preparation |
| JPS6175A (ja) * | 1984-03-06 | 1986-01-06 | ブリストル−マイア−ズ コムパニ− | 神経弛緩剤、１‐フルオロフェニルブチル‐４‐（５‐ハロ‐２‐ピリミジニル）ピペラジン誘導体 |
| US5631370A (en) * | 1988-01-20 | 1997-05-20 | Regents Of The University Of Minnesota | Optically-active isomers of dideoxycarbocyclic nucleosides |
| JP2793825B2 (ja) | 1988-01-20 | 1998-09-03 | リージヤンツ・オブ・ザ・ユニバーシテイ・オブ・ミネソタ | ジデオキシジデヒドロ炭素環式ヌクレオシド |
| NZ229453A (en) * | 1988-06-10 | 1991-08-27 | Univ Minnesota & Southern Rese | A pharmaceutical composition containing purine derivatives with nucleosides such as azt, as antiviral agents |
| GB8815265D0 (en) * | 1988-06-27 | 1988-08-03 | Wellcome Found | Therapeutic nucleosides |
| MY104575A (en) * | 1989-12-22 | 1994-04-30 | The Wellcome Foundation Ltd | Therapeutic nucleosides. |
| US5126452A (en) * | 1990-04-06 | 1992-06-30 | Glaxo Inc. | Synthesis of purine substituted cyclopentene derivatives |
| US5329008A (en) * | 1993-04-07 | 1994-07-12 | Glaxo Inc. | Synthesis of a 3,4-dihydroxy-1-cyclopentanylpurinone |
| GB9402161D0 (en) * | 1994-02-04 | 1994-03-30 | Wellcome Found | Chloropyrimidine intermediates |
| SK285228B6 (sk) * | 1997-05-13 | 2006-09-07 | Lonza Ag | Spôsob výroby racemického alebo opticky aktívnehoderivátu 4-(hydroxymetyl)-2-cyklopenténu a racemicky N-butyryl-1-amino-4- (hydroxymetyl)-2-cyklopentén |
-
1997
- 1997-10-14 GB GBGB9721780.6A patent/GB9721780D0/en not_active Ceased
-
1998
- 1998-10-12 PE PE1998000960A patent/PE121899A1/es not_active IP Right Cessation
- 1998-10-13 MY MYPI98004673A patent/MY127470A/en unknown
- 1998-10-13 CO CO98059323A patent/CO4980899A1/es unknown
- 1998-10-13 MA MA25292A patent/MA24676A1/fr unknown
- 1998-10-13 AR ARP980105097A patent/AR014921A1/es active IP Right Grant
- 1998-10-13 EG EG124098A patent/EG21730A/xx active
- 1998-10-13 ZA ZA9809338A patent/ZA989338B/xx unknown
- 1998-10-13 IN IN1821CA1998 patent/IN184590B/en unknown
- 1998-10-14 DK DK98949093T patent/DK1023292T3/da active
- 1998-10-14 NZ NZ503679A patent/NZ503679A/xx not_active IP Right Cessation
- 1998-10-14 IL IL13532398A patent/IL135323A/en not_active IP Right Cessation
- 1998-10-14 AU AU95476/98A patent/AU738462B2/en not_active Expired
- 1998-10-14 TW TW087117057A patent/TW436488B/zh not_active IP Right Cessation
- 1998-10-14 HU HU0003984A patent/HUP0003984A3/hu unknown
- 1998-10-14 PL PL98339904A patent/PL188477B1/pl unknown
- 1998-10-14 EA EA200000318A patent/EA003183B1/ru not_active IP Right Cessation
- 1998-10-14 CA CA002306958A patent/CA2306958C/en not_active Expired - Lifetime
- 1998-10-14 US US09/529,385 patent/US6646125B1/en not_active Expired - Lifetime
- 1998-10-14 DE DE69818084T patent/DE69818084T2/de not_active Expired - Lifetime
- 1998-10-14 CN CNB988121522A patent/CN1160354C/zh not_active Expired - Lifetime
- 1998-10-14 UA UA2000031789A patent/UA54550C2/uk unknown
- 1998-10-14 SK SK536-2000A patent/SK285331B6/sk not_active IP Right Cessation
- 1998-10-14 TR TR2000/00976T patent/TR200000976T2/xx unknown
- 1998-10-14 BR BRPI9813048-0A patent/BR9813048B1/pt not_active IP Right Cessation
- 1998-10-14 PT PT98949093T patent/PT1023292E/pt unknown
- 1998-10-14 JP JP2000515898A patent/JP4531250B2/ja not_active Expired - Lifetime
- 1998-10-14 KR KR1020007003921A patent/KR100543845B1/ko not_active IP Right Cessation
- 1998-10-14 AP APAP/P/2000/001790A patent/AP1182A/en active
- 1998-10-14 CZ CZ20001367A patent/CZ294482B6/cs not_active IP Right Cessation
- 1998-10-14 WO PCT/GB1998/003080 patent/WO1999019327A1/en active IP Right Grant
- 1998-10-14 ID IDW20000707A patent/ID24927A/id unknown
- 1998-10-14 ES ES98949093T patent/ES2205553T3/es not_active Expired - Lifetime
- 1998-10-14 AT AT98949093T patent/ATE249461T1/de active
- 1998-10-14 GE GEAP19985300A patent/GEP20022679B/en unknown
- 1998-10-14 RS YUP-202/00A patent/RS49710B/sr unknown
- 1998-10-14 EP EP98949093A patent/EP1023292B1/en not_active Expired - Lifetime
- 1998-10-14 EE EEP200000162A patent/EE04059B1/xx unknown
-
2000
- 2000-03-28 IS IS5423A patent/IS2195B/is unknown
- 2000-04-07 OA OA1200000101A patent/OA11370A/en unknown
- 2000-04-12 NO NO20001896A patent/NO325030B1/no not_active IP Right Cessation
- 2000-04-14 HR HR980147A patent/HRP20000216B1/xx not_active IP Right Cessation
- 2000-04-18 BG BG104352A patent/BG64597B1/bg unknown
- 2000-11-02 HK HK00106983A patent/HK1027807A1/xx not_active IP Right Cessation
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3325477B1 (en) | Novel tricyclic 4-pyridone-3-carboxylic acid derivatives for the treatment and prophylaxis of hepatitis b virus infection | |
| JP3670012B2 (ja) | クロロピリミジン中間体 | |
| JPH0586792B2 (es) | ||
| JP2002525374A (ja) | 抗ウイルスプリン誘導体 | |
| MXPA97002488A (es) | Compuestos de purina y guanina como inhibidores de pnp | |
| US11926633B2 (en) | Synthesis methods for upadacitinib and intermediate thereof | |
| WO2007013085A1 (en) | Novel process for acyclic phosphonate nucleotide analogs | |
| OA11370A (en) | Process for the synthesis of chloropurine intermediates. | |
| JP2010510253A (ja) | ４，４’−（１−メチル−１，２−エタンジイル）−ビス−（２，６−ピペラジンジオン）の新規の製造法 | |
| JPH03204877A (ja) | ピラゾロ［１，５―ａ］ピリミジン誘導体 | |
| CN110078736B (zh) | 吡唑并嘧啶衍生物、其制备方法及其应用 | |
| JP2825132B2 (ja) | 化合物の新規な製造方法 | |
| EP0298601A1 (en) | 6-Deoxy guanine derivatives and pyrimidine intermediates | |
| CA2038589A1 (en) | Substituted purines, processes for their preparation and their use as antiviral agents | |
| EP3931197B1 (en) | Process for the preparation of (6s)-3-[(4s)-4-cyano-2-oxo-pyrrolidin-1-yl]-6-methyl-n-(3,4,5-trifluorophenyl)-6,7-dihydro-4h-pyrazolo[1,5-a]pyrazine-5-carboxamide | |
| CA2021784A1 (en) | Cyclopentane derivatives | |
| WO2020263660A1 (en) | Process for the preparation of 2-fluoroadenine | |
| MXPA00003379A (es) | Proceso para la sintesis de intermediarios de cloropurina | |
| WO2005058926A1 (en) | New process for preparing diisopropyl ((1-((2-amino-6-chloro-9h-purin-9-yl)methyl)cyclopropyl)oxy)methylphosphonate | |
| JP2005523911A (ja) | ２，６−ジハロプリンの製造方法 | |
| JP3749275B2 (ja) | オキサゼピノピリドインドール誘導体及びその製造方法 | |
| Mahmood | Synthesis of Anti-Viral Carbocyclic Nucleosides | |
| JPS62142179A (ja) | マイトマイシン誘導体の製造法 | |
| LU82694A1 (fr) | Nouveaux composes de purine,leur procede de production et composition pharmaceutique les contenant | |
| KR20010039189A (ko) | 뉴클레오시드 유사체의 입체선택적 합성방법 |