CN1283624A - 西地那非的制备方法 - Google Patents
西地那非的制备方法 Download PDFInfo
- Publication number
- CN1283624A CN1283624A CN 00108053 CN00108053A CN1283624A CN 1283624 A CN1283624 A CN 1283624A CN 00108053 CN00108053 CN 00108053 CN 00108053 A CN00108053 A CN 00108053A CN 1283624 A CN1283624 A CN 1283624A
- Authority
- CN
- China
- Prior art keywords
- salt
- preparation
- methylpiperazine
- methyl
- propyl
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000003814 drug Substances 0.000 title description 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- PVOAHINGSUIXLS-UHFFFAOYSA-N 1-Methylpiperazine Chemical compound CN1CCNCC1 PVOAHINGSUIXLS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005406 washing Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims description 36
- 150000003839 salts Chemical class 0.000 claims description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 241000405119 Virga Species 0.000 claims description 30
- 238000002360 preparation method Methods 0.000 claims description 24
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 13
- -1 1-methylpiperazine salt compounds Chemical class 0.000 claims description 11
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- 239000012670 alkaline solution Substances 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 8
- 235000017550 sodium carbonate Nutrition 0.000 claims description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 8
- 238000004128 high performance liquid chromatography Methods 0.000 claims description 7
- 238000006386 neutralization reaction Methods 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 5
- DEIYFTQMQPDXOT-UHFFFAOYSA-N sildenafil citrate Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O.CCCC1=NN(C)C(C(N2)=O)=C1N=C2C(C(=CC=1)OCC)=CC=1S(=O)(=O)N1CCN(C)CC1 DEIYFTQMQPDXOT-UHFFFAOYSA-N 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims description 4
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001953 recrystallisation Methods 0.000 claims description 4
- 229960002639 sildenafil citrate Drugs 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 3
- 238000013375 chromatographic separation Methods 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 2
- ZMZINYUKVRMNTG-UHFFFAOYSA-N acetic acid;formic acid Chemical compound OC=O.CC(O)=O ZMZINYUKVRMNTG-UHFFFAOYSA-N 0.000 claims description 2
- WJGAPUXHSQQWQF-UHFFFAOYSA-N acetic acid;hydrochloride Chemical compound Cl.CC(O)=O WJGAPUXHSQQWQF-UHFFFAOYSA-N 0.000 claims description 2
- GPFIZJURHXINSQ-UHFFFAOYSA-N acetic acid;nitric acid Chemical compound CC(O)=O.O[N+]([O-])=O GPFIZJURHXINSQ-UHFFFAOYSA-N 0.000 claims description 2
- 125000004390 alkyl sulfonyl group Chemical group 0.000 claims description 2
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000012065 filter cake Substances 0.000 claims description 2
- FTHUKEBATJXQFL-UHFFFAOYSA-N formic acid;hydrochloride Chemical compound Cl.OC=O FTHUKEBATJXQFL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 235000010755 mineral Nutrition 0.000 claims description 2
- ZCVDYMMNVAZSTH-UHFFFAOYSA-N nitric acid hydrobromide Chemical compound Br.O[N+]([O-])=O ZCVDYMMNVAZSTH-UHFFFAOYSA-N 0.000 claims description 2
- 150000003016 phosphoric acids Chemical class 0.000 claims description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 2
- 235000015320 potassium carbonate Nutrition 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 238000000967 suction filtration Methods 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- AILFRWRYZZVJTL-UHFFFAOYSA-N 1-methylpiperazin-1-ium;chloride;hydrochloride Chemical compound Cl.Cl.CN1CCNCC1 AILFRWRYZZVJTL-UHFFFAOYSA-N 0.000 claims 1
- TUKPCDZOTCSHOZ-UHFFFAOYSA-N 1-methylpiperazine hydrobromide hydrochloride Chemical compound CN1CCNCC1.Cl.Br TUKPCDZOTCSHOZ-UHFFFAOYSA-N 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 150000002367 halogens Chemical class 0.000 claims 1
- 230000035484 reaction time Effects 0.000 abstract description 3
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 238000004809 thin layer chromatography Methods 0.000 description 8
- 150000001263 acyl chlorides Chemical class 0.000 description 5
- 150000003863 ammonium salts Chemical class 0.000 description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- ZOOGRGPOEVQQDX-KHLHZJAASA-N cyclic guanosine monophosphate Chemical compound C([C@H]1O2)O[P@](O)(=O)O[C@@H]1[C@H](O)[C@H]2N1C(N=C(NC2=O)N)=C2N=C1 ZOOGRGPOEVQQDX-KHLHZJAASA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007363 ring formation reaction Methods 0.000 description 3
- BNRNXUUZRGQAQC-UHFFFAOYSA-N sildenafil Chemical compound CCCC1=NN(C)C(C(N2)=O)=C1N=C2C(C(=CC=1)OCC)=CC=1S(=O)(=O)N1CCN(C)CC1 BNRNXUUZRGQAQC-UHFFFAOYSA-N 0.000 description 3
- FDDDEECHVMSUSB-UHFFFAOYSA-N sulfanilamide Chemical compound NC1=CC=C(S(N)(=O)=O)C=C1 FDDDEECHVMSUSB-UHFFFAOYSA-N 0.000 description 3
- 229940124530 sulfonamide Drugs 0.000 description 3
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 2
- 102000004861 Phosphoric Diester Hydrolases Human genes 0.000 description 2
- 108090001050 Phosphoric Diester Hydrolases Proteins 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- AVACGIOHDSJEMQ-UHFFFAOYSA-N 1,2-dimethoxyethane;methylsulfinylmethane Chemical compound CS(C)=O.COCCOC AVACGIOHDSJEMQ-UHFFFAOYSA-N 0.000 description 1
- QUMRLXXCRQWODL-UHFFFAOYSA-N 1-methylpiperazin-1-ium;chloride Chemical compound [Cl-].C[NH+]1CCNCC1 QUMRLXXCRQWODL-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- RTEJGWLCKHEBAW-UHFFFAOYSA-N C(CC)(=O)O.C(C)(=O)O.P(O)(O)(O)=O.[N+](=O)(O)[O-] Chemical compound C(CC)(=O)O.C(C)(=O)O.P(O)(O)(O)=O.[N+](=O)(O)[O-] RTEJGWLCKHEBAW-UHFFFAOYSA-N 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 208000010228 Erectile Dysfunction Diseases 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- BOJYIBXWOVSVBN-UHFFFAOYSA-N OC=O.CC(O)=O.CC(O)=O Chemical class OC=O.CC(O)=O.CC(O)=O BOJYIBXWOVSVBN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- PBAWVYRGJJDZBZ-UHFFFAOYSA-N azane;1-methylpiperazine Chemical class N.CN1CCNCC1 PBAWVYRGJJDZBZ-UHFFFAOYSA-N 0.000 description 1
- 150000003851 azoles Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- IRJUVCRYBRYRNT-UHFFFAOYSA-N ethanol Chemical compound CCO.CCO.CCO.CCO.CCO IRJUVCRYBRYRNT-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- BICAGYDGRXJYGD-UHFFFAOYSA-N hydrobromide;hydrochloride Chemical compound Cl.Br BICAGYDGRXJYGD-UHFFFAOYSA-N 0.000 description 1
- 201000001881 impotence Diseases 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 229940126601 medicinal product Drugs 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- DHAFIDRKDGCXLV-UHFFFAOYSA-N n,n-dimethylformamide;1-methylpyrrolidin-2-one Chemical compound CN(C)C=O.CN1CCCC1=O DHAFIDRKDGCXLV-UHFFFAOYSA-N 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 210000003899 penis Anatomy 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 150000003053 piperidines Chemical class 0.000 description 1
- TUUVEPHKJPCZSB-UHFFFAOYSA-L potassium sodium hydrogen carbonate hydroxide Chemical compound [OH-].[Na+].[K+].OC([O-])=O TUUVEPHKJPCZSB-UHFFFAOYSA-L 0.000 description 1
- 238000013094 purity test Methods 0.000 description 1
- DOTPSQVYOBAWPQ-UHFFFAOYSA-N pyrazolo[4,3-d]pyrimidin-3-one Chemical class N1=CN=C2C(=O)N=NC2=C1 DOTPSQVYOBAWPQ-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229960003310 sildenafil Drugs 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 210000002460 smooth muscle Anatomy 0.000 description 1
- UMSOKRFUOIKLNN-UHFFFAOYSA-M sodium;pyridine;hydroxide Chemical compound [OH-].[Na+].C1=CC=NC=C1 UMSOKRFUOIKLNN-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 229940094720 viagra Drugs 0.000 description 1
Images
Landscapes
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
实施例 | 1-甲基哌嗪单盐 | 中和用碱 | 收率% |
234567 | 氢溴酸盐硫酸盐硝酸盐磷酸盐乙酸盐丙酸盐 | 碳酸钠氢氧化钾碳酸氢钠氨水吡啶氢氧化钠 | 918993879189 |
实施例 | 1-甲基哌嗪双盐 | %收率 |
89101112 | 双盐酸盐双氢溴酸盐双硝酸盐双甲酸盐双乙酸盐 | 9189868485 |
实施例 | 1-甲基哌嗪复盐 | %收率 |
13141516171819 | 盐酸-氢溴酸复盐盐酸-硝酸复盐盐酸-甲酸复盐盐酸-乙酸复盐硝酸-氢溴酸复盐硝酸-乙酸复盐甲酸-乙酸复盐 | 82%80%79%81%78%82%81% |
实施例 | 反应时间(小时) | 溶剂 | 收率% |
2021222324252627282930 | 0.51468333333 | 乙醇乙醇乙醇乙醇乙醇甲醇1,2-二甲氧基乙烷二甲基亚砜二甲基甲酰胺N-甲基吡咯烷酮2-丙醇 | 8390.29393.292.591.993.492.594.890.292.6 |
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN00108053A CN1094492C (zh) | 1999-06-21 | 2000-06-08 | 西地那非的制备方法 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN99108193.5 | 1999-06-21 | ||
CN99108193 | 1999-06-21 | ||
CN00108053A CN1094492C (zh) | 1999-06-21 | 2000-06-08 | 西地那非的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1283624A true CN1283624A (zh) | 2001-02-14 |
CN1094492C CN1094492C (zh) | 2002-11-20 |
Family
ID=25739306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN00108053A Expired - Fee Related CN1094492C (zh) | 1999-06-21 | 2000-06-08 | 西地那非的制备方法 |
Country Status (1)
Country | Link |
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CN (1) | CN1094492C (zh) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1633364B1 (en) * | 2004-01-05 | 2008-02-27 | Teva Pharmaceutical Industries Ltd. | Processes for the production of sildenafil base and citrate salt |
CN102250039A (zh) * | 2011-05-16 | 2011-11-23 | 浙江大学 | N-甲基哌嗪盐离子液体及其制备方法 |
WO2012097750A1 (zh) | 2011-01-21 | 2012-07-26 | 浙江大德药业集团有限公司 | 用于治疗阳痿的吡唑并嘧啶酮化合物和咪唑并三嗪酮化合物 |
CN102993205A (zh) * | 2012-12-27 | 2013-03-27 | 华润赛科药业有限责任公司 | 一种高收率制备高纯度西地那非游离碱的纯化方法 |
CN106117212A (zh) * | 2016-06-25 | 2016-11-16 | 吉林医药学院 | 一种改进的西地那非合成工艺 |
CN109970744A (zh) * | 2019-04-10 | 2019-07-05 | 重庆康刻尔制药有限公司 | 一种枸橼酸西地那非中间体的合成方法 |
CN115043845A (zh) * | 2022-07-20 | 2022-09-13 | 江苏大学 | 一种西地那非的合成方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101891747B (zh) * | 2010-07-02 | 2012-04-25 | 张南 | 抑制5型磷酸二酯酶的化合物及制备方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9013750D0 (en) * | 1990-06-20 | 1990-08-08 | Pfizer Ltd | Therapeutic agents |
GB9612514D0 (en) * | 1996-06-14 | 1996-08-14 | Pfizer Ltd | Novel process |
-
2000
- 2000-06-08 CN CN00108053A patent/CN1094492C/zh not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1633364B1 (en) * | 2004-01-05 | 2008-02-27 | Teva Pharmaceutical Industries Ltd. | Processes for the production of sildenafil base and citrate salt |
WO2012097750A1 (zh) | 2011-01-21 | 2012-07-26 | 浙江大德药业集团有限公司 | 用于治疗阳痿的吡唑并嘧啶酮化合物和咪唑并三嗪酮化合物 |
CN102250039A (zh) * | 2011-05-16 | 2011-11-23 | 浙江大学 | N-甲基哌嗪盐离子液体及其制备方法 |
CN102993205A (zh) * | 2012-12-27 | 2013-03-27 | 华润赛科药业有限责任公司 | 一种高收率制备高纯度西地那非游离碱的纯化方法 |
CN106117212A (zh) * | 2016-06-25 | 2016-11-16 | 吉林医药学院 | 一种改进的西地那非合成工艺 |
CN106117212B (zh) * | 2016-06-25 | 2019-10-11 | 吉林医药学院 | 一种改进的西地那非合成工艺 |
CN109970744A (zh) * | 2019-04-10 | 2019-07-05 | 重庆康刻尔制药有限公司 | 一种枸橼酸西地那非中间体的合成方法 |
CN115043845A (zh) * | 2022-07-20 | 2022-09-13 | 江苏大学 | 一种西地那非的合成方法 |
CN115043845B (zh) * | 2022-07-20 | 2023-11-10 | 江苏大学 | 一种西地那非的合成方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1094492C (zh) | 2002-11-20 |
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