Nucleosidi

5'-O-Acetyl-2',3'-dideoxy-2',3'-didehydro-5-fluorouridine is a nucleoside analog. It is synthesized by substituting the hydroxyl group of uridine with a fluorine atom and the 2' position of ribose with a 5'-O-acetyl group. This modification prevents the incorporation of this nucleoside into DNA or RNA, making it an effective antiviral and anticancer agent. 5'-O-Acetyl-2',3'-dideoxy-2',3'-didehydro-5-fluorouridine has been shown to be highly active against tumor cells but not normal cells in vitro.

N-Acetyl-2'-O-[(tert-butyl)dimethylsilyl]-5'-O-DMT-6'-O-methylguanosine-3'-CE phosphoramidite is a nucleoside and nucleotide analog. It is synthesized by reacting 2'-deoxyguanosine with acetyl chloride, 5'-dimethoxytrityl chloride, and 3'-Ce phosphoramidite in an organic solvent. N-Acetyl-2'-O-[(tert-butyl)dimethylsilyl]-5'-O-DMT-6'-O-methylguanosine has been shown to inhibit the growth of cancer cells and viruses in cell culture studies. It is also a potent inhibitor of HIV replication in vitro.

<p>5-Carbamoylmethyluridine is a nucleoside that is structurally related to uridine. It is synthesized from uridine by methyl esterification with carbamic acid and methoxycarbonyl chloride. 5-Carbamoylmethyluridine interacts with actin filaments and has been shown to alter the expression of messenger RNA in eukaryotes. 5-Carbamoylmethyluridine also acts as a competitive inhibitor of the formation of a ternary complex, which includes ATP, GTP, and UTP, at the level of ribonucleotide reductase. This inhibition leads to decreased synthesis of messenger RNA in cells.</p>

<p>8-Bromocyclic adenosine diphosphate ribose sodium salt (8BCAR) is a cytosolic cyclase inhibitor that inhibits the synthesis of cyclic adenosine monophosphate (cAMP). 8BCAR blocks the activation of protein kinase A, which is an enzyme involved in the phosphorylation of cAMP. 8BCAR has been shown to inhibit cardiac hypertrophy induced by growth factor-β1 and to increase mitochondrial membrane potential, as well as to suppress cardiomyocyte apoptosis. In addition, this drug can be used for the treatment of cancers such as leukemia and lymphoma.</p>

4'-C-Azido-2'-deoxy-2'-fluoro-β-D-arabinocytidine (4FA) is a potent inhibitor of the growth of HIV. It has been shown to inhibit the production of inflammatory cytokines and chemokines, which are associated with inflammatory diseases such as arthritis and asthma. 4FA has also been shown to inhibit glycogen synthase kinase 3 (GSK3), which is involved in the regulation of cellular signaling pathways that control cell growth and proliferation. Furthermore, 4FA inhibits an enzyme that is needed for viral replication and can be used as a therapeutic agent against viruses such as hepatitis C virus.

2'-Deoxy-5-hydroxymethyluridine-5'-triphosphate triethylammonium salt (dHMUTP) is a noncompetitive inhibitor of transcriptase activity. It inhibits the synthesis of DNA by binding to RNA polymerase on the template strand, thereby blocking the progress of the enzyme along the DNA. This drug has been shown to be effective in inhibiting viral production and growth in mammalian cells, as well as cancer cell culture. Dihydrofolate reductase is required for dHMUTP to function, and it is metabolized in vivo through hydrolysis by glycosylases or antineoplastic properties by nucleotide excision repair enzymes. These enzymes are present in human cells but absent in bacteria and yeast. The drug also has antineoplastic properties due to its ability to inhibit tumor cell proliferation.

Inosine-3',5'-cyclic-monophosphate triethylammonium is a synthetic nucleoside that functions as an activator of the deoxyribonucleotide synthesis. It has antiviral and anticancer properties, and has been shown to have anti-inflammatory activities. Inosine-3',5'-cyclic-monophosphate triethylammonium has been shown to inhibit the growth of cells in culture and induce apoptosis. This is due to its ability to inhibit DNA synthesis by inhibiting the enzyme ribonucleotide reductase.

N6-Benzoyl-3'-deoxy-5'-O-DMT-cytidine 2'-CE phosphoramidite is a Ribonucleoside, Novel, High quality, Activator, Deoxyribonucleosides, Modified, CAS No. 157327-96-3. It is one of the main ingredients in the synthesis of DNA monophosphate and diphosphate. It is also used as an anticancer and antiviral agent.

<p>2'-Deoxy-L-adenosine is an adenosine analogue that has been shown to inhibit the growth of tumor cells in mice. The mechanism of this inhibition is not well understood, but it is thought that 2'-deoxy-L-adenosine inhibits the adenosine A3 receptor and blocks the activation of toll-like receptors. This drug also has been shown to have anti-inflammatory properties, which may be due to its ability to inhibit prostaglandin synthesis. It has been used as a model system for studying cellular responses to DNA damage caused by ultraviolet radiation. 2'-Deoxy-L-adenosine also has been shown to have a cytotoxic effect on human HL60 cells, which is mediated by nuclear DNA fragmentation.</p>

<p>Nelarabine is a drug that prevents the growth of cells by inhibiting the bcr-abl kinase, which is an intracellular target. This drug has been shown to be effective against pediatric patients with t-cell acute lymphoblastic leukemia and adults with chronic myeloid leukemia. Nelarabine has minimal toxicity in humans and is not toxic to healthy cells. It has been shown to have anti-inflammatory properties and may be used as a biomarker for autoimmune diseases. Nelarabine also inhibits angiogenesis, which may be due to its effects on nuclear DNA.</p>

6-Amino-2,5-dihydro-2-(b-D-ribofuranosyl)-4H-pyrazolo[3,4-d]pyrimidin-4-one is a novel chemical. It is a nucleoside analog that has been shown to inhibit the growth of cancer cells in vitro and in vivo. 6-Amino-2,5-dihydro-2-(b-D ribofuranosyl)-4H pyrazolo[3,4 d]pyrimidin 4 one has also been shown to inhibit viral replication. It is phosphoramidites that are modified with bifunctional linkers for coupling to DNA or RNA molecules. 6 amino 2 5 dihydro 2 (b D ribofuranosyl) 4 H pyrazolo 3 4 d pyrimidine 4 one has high purity and high quality.

N-Phenylpyridin-4-amine is a tautomeric compound that has been shown to inhibit the growth of cancer cells. It is able to bind to tyrosine kinase and inhibit its activity, which affects the proliferation of cancer cells. N-Phenylpyridin-4-amine also inhibits mitochondrial functions by inhibiting cytochrome c oxidase. This drug also has an anti-inflammatory effect, inhibiting the production of cytokines such as IL1β, IL6, and TNFα. The biological function of N-Phenylpyridin-4-amine is not yet fully understood. It may be due to the inhibition of protein tyrosine phosphatases (such as PTP1B), which are involved in insulin signalling pathways.

<p>Anti-viral; anti-neoplastic</p>

5'-Deoxy-5'-fluoro-5'-(methylthio)adenosine is an analogue of adenosine that has inhibitory activities on the biosynthetic pathway of polyamines. It has been shown to have a cytostatic effect on murine leukemia cells in vitro. 5'-Deoxy-5'-fluoro-5'-(methylthio)adenosine inhibits the production of polyamines by interfering with the enzyme responsible for their biosynthesis, ornithine decarboxylase. 5'-Deoxy-5'-fluoro-5'-(methylthio)adenosine also inhibits the growth of murine leukemia cells and other leukemia cell lines, including L1210 and MM1.

7-Deaza-2'-deoxyguanosine is an analog of guanosine that has been shown to inhibit the activity of telomerase. This enzyme synthesizes a sequence of DNA called a telomere, which protects the ends of chromosomes from deterioration and prevents chromosomal end-to-end fusion. 7-Deaza-2'-deoxyguanosine has an inhibitory effect on the polymerase chain reaction (PCR) in mammalian cells and inhibits the transcription-polymerase chain reaction (PCR) in vitro. It has also been shown to be potent against cancer cells. 7-Deaza-2'-deoxyguanosine is synthesized by solid phase synthesis, which is a chemical process that involves attaching one molecule to another molecule with similar structure, using organic solvents as intermediates.

<p>1-(2'-O-4-C-Methylene-b-D-ribofuranosyl)thymine is a nucleoside analog with a modified ribofuranosyl sugar, which includes a 2'-O-4'-C-methylene bridge that constrains the sugar conformation.</p>

N4-Acetyl-5'-O-DMT-2'-O-methylcytidine is a cytidine analogue that has been synthesized to be used as an enzyme-linked probe. It is labelled with biotin and can be detected by binding to an antibody which has been labelled with a fluorescent tag. Cytidine analogues are synthesized on a solid phase and then cleaved from the support material. The spacer arm is added to the 5' end of the nucleotide and the 3'-OH group is modified with 2'-O-methyl groups. N4-Acetyl-5'-O-DMT-2'-O-methylcytidine has been shown to be sensitive in techniques such as solid phase synthesis, nucleic acid research, and immunoassays.

Ribavirin triphosphate is the biologically active metabolite of antiviral nucleoside analog ribavirin. In cells, the prodrug ribavirin gets triphosphorylated and in it inhibits viral RNA polymerases, interfering with the synthesis of newly formed RNA.

2'-Deoxy-5'-O-pixyluridine (2DPU) is a novel, synthetic nucleoside that is an active ingredient in antiviral and anticancer drugs. 2DPU has been shown to inhibit the replication of human immunodeficiency virus type 1 (HIV-1) by inhibiting the viral enzyme HIV reverse transcriptase. The phosphoramidite form of 2DPU is used as a building block for DNA synthesis and for the synthesis of other nucleosides. The monophosphate form of 2DPU is used in the synthesis of antiviral drugs, including acyclovir, zidovudine, and ribavirin.

Second messenger in intracellular signal transduction