WO2009009951A1 - 2'-fluoro-4'-substituted nucleosides, the preparation and use - Google Patents
2'-fluoro-4'-substituted nucleosides, the preparation and use Download PDFInfo
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- WO2009009951A1 WO2009009951A1 PCT/CN2008/001239 CN2008001239W WO2009009951A1 WO 2009009951 A1 WO2009009951 A1 WO 2009009951A1 CN 2008001239 W CN2008001239 W CN 2008001239W WO 2009009951 A1 WO2009009951 A1 WO 2009009951A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
- C07H19/06—Pyrimidine radicals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/16—Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/18—Antivirals for RNA viruses for HIV
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/20—Antivirals for DNA viruses
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
- C07H19/14—Pyrrolo-pyrimidine radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
- C07H19/16—Purine radicals
Definitions
- the present invention relates to nucleoside analogs, processes for their preparation and their use, and in particular to 2'-fluoro-4'-substituted nucleoside analogs, processes for their preparation and their use.
- HIV HIV
- the HI V replication cycle has been basically clarified.
- the study found that its reproductive process is roughly divided into the following steps: adsorption, invasion and husking, reverse transcription, integration, synthesis, assembly, release and maturation of viral RNA and proteins, among which Each link can be used as a target for screening HIV drugs, where protein synthesis and viral genomic nucleic acid replication are the most critical steps.
- HIV reverse transcriptase is a multifunctional enzyme with both RNA-dependent DNA polymerase, DNA-dependent DNA polymerase, and Rhase H activity. HIV first uses the RNA of the viral genome as a template, and uses the RNA of the host cell as a primer to synthesize the (-) strand DNA, and then synthesizes the (+) strand DNA in the same manner. When reverse transcription is over, all genetic information carried by HIV is converted from single-stranded RNA to double-stranded mDNA.
- Reverse transcriptase inhibitors can prevent the prolongation of mDNA and interfere with the reverse transcription process of HIV, thus becoming a drug for chemotherapy and AIDS.
- they can be divided into two categories - 1) nucleoside reverse transcriptase inhibitors, which act on the reverse transcription of HIV DNA and are inserted into viral DNA to cause it to become defective DNA.
- the DNA of the host cell of HIV can not be replicated after integration, so as to achieve anti-HIV effect.
- the existing drugs are zidovudine (AZT), deoxygenated muscle # (ddl), zalcitabine (ddC), sitaf Ding (d4T), lamivudine (3TC), abacavir (Abacavir); 2) non-nucleoside reverse transcriptase inhibitors, the mechanism of action is to prevent HIV RNA from directly connecting to RT, not encoding it into DNA .
- ZT zidovudine
- ddl deoxygenated muscle #
- ddC zalcitabine
- d4T sitaf Ding
- lamivudine 3TC
- abacavir Abacavir
- nucleoside reverse transcriptase inhibitor Zidovudine, the first anti-HIV drug listed in 1987, was a nucleoside reverse transcriptase inhibitor. Although it is very toxic and fails to cure a patient, it can alleviate symptoms and prolong life. Subsequently, several nucleoside analogs have been marketed for anti-HI V drugs. Therefore, nucleoside analogs are an important class of compounds with anti-HIV activity. At present, these drugs have certain defects, on the one hand, limited efficacy, and on the other hand, long-term use has serious side effects and can cause resistance. Therefore, the synthesis of novel nucleoside analogs remains an important research direction.
- nucleosides In order to find more effective nucleoside antiviral drugs, various modifications have been made to nucleosides, among which fluoronucleoside analogs containing fluorine are one of them. (Clark, J. PCT Patent Appl., WO 2005003174;
- the main object of the present invention is to provide a 2'-fluoro-substituted nucleoside analog; another object is to provide a method for synthesizing such a compound; and a further object is to provide a pharmaceutical use of the compound.
- the 2'-fluoro-4,-substituted nucleoside analog of the present invention has the structure of the formula (I):
- R CH 3 , CN, N 3 , C ⁇ CH
- R' H, F
- X F, OH, NH 2 ;
- It can be formed as a salt by reacting the active compound (I) or a latent drug thereof or its 5'-phosphate with an organic or inorganic acid to form a salt.
- the invention relates to the use of a 2'-fluoro-4'-substituted-nucleoside analog in the preparation of a medicament for preparing an anti-HBV or anti-HCV or anti-HIV virus drug, wherein the anti-HBV virus drug is anti-hepatitis B
- the anti-HIV virus drug is an anti-AIDS drug
- the anti-HCV virus drug is an anti-HC virus drug.
- Synthesis of compound b Take compound a, add acetone, slowly add concentrated sulfuric acid under stirring, stir the reaction at room temperature, after TLC detection reaction, adjust the pH with concentrated ammonia water, filter, and distill off most of the acetone under vacuum. Under stirring, 0.4% dilute hydrochloric acid was added, and the reaction was carried out under reflux of acetone, and all of the compound a was hydrolyzed to the compound b.
- the reaction solution was neutralized with solid NaHC0 3, filtered, and the filtrate was evaporated under reduced pressure to remove the solvent, the residue was dissolved with of dichloromethane, dried over anhydrous N3 ⁇ 4S0 4 overnight, filtered, the solvent was evaporated to give a yellow viscous oil b.
- Synthesis of compound j The compound i is added to a dilute hydrochloric acid solution, and the reaction is stirred at room temperature. After completion of the reaction, the mixture is neutralized with solid NaHC0 3 , filtered, and the filtrate is evaporated under reduced pressure. The residue is dissolved with dichloromethane. After drying with anhydrous N3 ⁇ 4S0 4 and filtering, the solvent was evaporated to give a compound.
- Synthesis of compound k Compound j is dissolved in pyridine: BzCl is added dropwise, reacted at room temperature, and the solvent is evaporated to dryness after completion of the reaction.
- the invention has the beneficial effects that the special structure of the D- and L-nucleoside analogs fluorine-containing group, alkynyl group, azide group, cyano group and the like can make up for the current D- and L- by modification of the glycosyl group and the base.
- Nucleoside analogues have large toxic side effects and low activity; and the synthesis method is simple and feasible, and the yield is relatively low. It is applied to the preparation of anti-HBV or anti-HCV or anti-HIV virus drugs, and has good application value.
- the compound ( is synthesized: the compound i (D-ribose or L-ribose) (8. 66 mmol) is dissolved in 31.2 ml of HCl/MeOH (0.2 mmol/L), and the mixture is stirred and kept under a water bath at 27 ° C for 3 h. The reaction was quenched by the addition of 7.8 ml of pyridine, and dried under reduced pressure to give a pale yellow sugar powder compound ii (96%);
- Drugs to be tested Compound 1, 9, 15, 19, 36, 39, 46, 50, 52, no batch number, water insoluble, DMS0 can be dissolved, dissolved in DMS0 at the appropriate concentration, diluted with medium, immediately added Cell culture.
- Zidovudine is a known nucleoside HIV-1 reverse transcriptase inhibitor for clinical use. It is a white powder purchased from Shanghai Dysonuo Chemical Pharmaceutical Co., Ltd., 'batch number: 040201b,
- NTP Nevirapine
- the HIV-1 ⁇ experimental virus strain was given to Dr. Jiang Jiandong of Mount Sinai Medical Center in the United States, expanded in H9 cells, and frozen at -196 °C.
- T lymphocytes The passage of T lymphocytes was presented to Professor Zhang Xingquan of the University of Colorado Medical Research Center. The room was passed down and stored at -196 °C.
- Cell culture medium RPMI Medium 1640 medium supplemented with 10% fetal bovine serum, 100 IU/ml penicillin, 100 g/ml streptomycin and kanamycin, and L-glutamine. Incubate in a 37 ° C, 5% CO 2 incubator and pass once every three days. '
- RPMI Medium 1640 medium is the product of GIBC0 Company of the United States; Fetal Bovine Serum is the product of Tianjin Chuanpage Biochemical Products Co., Ltd.; Penicillin and streptomycin are products of Huabei Pharmaceutical Factory; Kanamycin is Shanghai Xu Products of Donghaipu Pharmaceutical Co., Ltd.; Thiazolyl blue (MTT), citric acid is the product of Sigma Company of America; Triton X-100 is the product of KEB0 AB STOCKHOLM of Sweden; N, N-dimethylformamide (N, N-Dimethyl Formamide) is a product of Beijing Chemical Plant; HIV-1 P24 Antigen Test Kit: It is made with Bio erieux of the Netherlands.
- EmaxTM microplate reader is a product of MolICular Devices, USA; Experimental method: 96-well culture plate, with drug and positive control drug inhibition virus experimental group, each well was added with different concentrations of DMS0 solution lOOul or positive control drugs AZT and NVP or rat oral drug different dose groups at different times Different dilution groups of blood, 100 ul per well, and a control group and a virus control group positive drug AZT and NVP control group. MT-4 cells were treated with 100 TCID 5 .
- a 96-well culture plate inoculated into a drug-inhibiting virus test group, a positive control drug group, and a virus control group was prepared at 2 X 10 5 cells/ml. in.
- the cell control group was supplemented with an equal amount of culture medium and cultured for 4 days.
- the cytopathic effect was observed with a microscope, and toxicity was measured by MTT staining, and the supernatant was assayed for P24 antigen according to the method described.
- the inhibition rate, half toxic concentration (CC 5 ), and half effective concentration (IC 5 ) and SI were calculated separately.
- OBJECTIVE To screen anti-hepatitis B virus drugs using Hep G2. 2. 15 cells transfected with HBV genome, and provide theoretical and experimental basis for research and development of new anti-hepatitis B drugs.
- Lamivudine Compound 15 significantly reduced HBV DNA copy number after administration.
- HBV DNA clone was transfected into human hepatoma cell He P G2 by Hep G2. 2. 15 cell line was constructed in 1986 by The Mount Sinai Medical Center in the United States, and stably expressed e antigen and surface antigen. Presented by the Wuhan Institute of Virology, Chinese Academy of Sciences. The laboratory was self-passaged and screened by G418 during the culture.
- Test drug Compound 15, 17 is a synthetic drug of the present invention, a control drug: lamivudine (3TC), product of GlaxoSmithKline (Suzhou) Co., Ltd.
- DMEM medium Hyclone fetal bovine serum Hangzhou Sijiqing
- 24-well culture plate US corning culture bottle US corning
- Hepatitis B virus nucleic acid amplification fluorescence quantitative detection kit Shenzhen Piji
- Hep G2. The cells were cultured in DMEM containing 10% fetal bovine serum, 500 mg/L G418, digested with 0.25% trypsin and 0.02% EDTA, and pressed 1 : 3 subculture, once every three days. Study on the anti-HBV effect of drugs:
- the cells in good growth state were adjusted to a cell concentration of 10 4 /ml, and 1 ml per well was inoculated into a 24-well plate.
- the culture was carried out for 48 hours at 37 ° in a 5% CO 2 incubator, and the test was started when the cells adhered well.
- the three drugs were grouped according to the different concentrations of the preparation (Table 1), and two duplicate wells were set for each concentration, and the cell culture control without the drug was set as a blank control. On the 3rd, 6th and 9th day of the drug, the same concentration of the drug-containing medium and the blank group culture solution were changed once, and the culture supernatant of each well was inhaled into the EP tube and stored at -20 ° for examination.
- 3TC EC 50 is 38.78 g/L
- HCV replicating cells (A a.5) were cultured in Dulbecco's modified Eagle medium containing 10% fetal bovine serum and 1 mg/mL of G418. 293-Sip-L cells were cultured in Dulbecco's modified Eagle medium containing 10% fetal bovine serum and 250 ⁇ g/mL G418 and 150 ⁇ g/mL hygromycin B.
- the cells in a 60 mm diameter Petri dish were incubated for 12 hours in a medium containing 100 ⁇ L of HCV-positive medium. The cells are then incubated in fresh medium that does not contain HCV and replaced daily. When the cells were tested for HCV-RNA 7 days after infection, the cells were trypsinized and washed twice with Dulbecco's modified Eagle medium by centrifugation. The upper portion of the second wash (as a control) and the washed cells were collected in pairs for R A extraction and RT-PCR detection. ⁇ -actin mRNA was simultaneously measured for comparison.
- Compound 17 has an inhibitory effect at 6, 0.6 and 0.06 ⁇ g mL (see table below). HCV-RNA levels were determined by fully automated PCR enzyme-linked immunosorbent assay. From this point of view, Compound 17 has a strong inhibitory effect on HCV.
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Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08772992.7A EP2177527B1 (en) | 2007-07-16 | 2008-06-27 | 2'-fluoro-4'-substituted nucleosides, the preparation and use |
JP2010516351A JP2010533659A (ja) | 2007-07-16 | 2008-06-27 | 2’−フルオロ−4’−置換−ヌクレオシド類似体、その製造方法及び使用 |
US12/669,342 US8835615B2 (en) | 2007-07-16 | 2008-06-27 | 2′-fluorine-4′-substituted-nucleoside analogues, preparation methods and uses thereof |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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CN200710054781 | 2007-07-16 | ||
CN200710054781.2 | 2007-07-16 | ||
CNB2007101375480A CN100532388C (zh) | 2007-07-16 | 2007-08-07 | 2’-氟-4’-取代-核苷类似物、其制备方法及应用 |
CN200710137548.0 | 2007-08-07 |
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WO2009009951A1 true WO2009009951A1 (en) | 2009-01-22 |
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PCT/CN2008/001239 WO2009009951A1 (en) | 2007-07-16 | 2008-06-27 | 2'-fluoro-4'-substituted nucleosides, the preparation and use |
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US (1) | US8835615B2 (zh) |
EP (1) | EP2177527B1 (zh) |
JP (1) | JP2010533659A (zh) |
KR (1) | KR20100102089A (zh) |
CN (1) | CN100532388C (zh) |
WO (1) | WO2009009951A1 (zh) |
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Also Published As
Publication number | Publication date |
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US20100234584A1 (en) | 2010-09-16 |
CN100532388C (zh) | 2009-08-26 |
EP2177527B1 (en) | 2013-12-18 |
EP2177527A1 (en) | 2010-04-21 |
US8835615B2 (en) | 2014-09-16 |
CN101177442A (zh) | 2008-05-14 |
KR20100102089A (ko) | 2010-09-20 |
JP2010533659A (ja) | 2010-10-28 |
EP2177527A4 (en) | 2010-07-14 |
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