Nucleótidos

<p>7-Cyano-7-deaza-2'-deoxyadenosine is a nucleoside analog that inhibits the growth of virus by competing with deoxyadenosine for incorporation into DNA and RNA. 7-Cyano-7-deaza-2'-deoxyadenosine also stabilizes dna duplexes and prevents them from breaking down. It has been shown to be effective against herpes simplex virus, which causes painful blisters on the skin or genitals. This drug has been used in clinical trials as an antiviral agent. 7-Cyano-7-deaza-2'-deoxyadenosine is synthesized from 2',3'-didehydrocytidine under the following conditions:</p>

<p>2'-O-Methylcytidine is a nucleoside with a hydroxyl group on the 2' carbon. The hydroxyl group makes it an effective inhibitor of viral replication, and it has been shown to be active against HIV-1 in cell culture. 2'-O-Methylcytidine is also metabolized by nucleotide salvage pathways, and the metabolic response can be studied using proton nuclear magnetic resonance (NMR) spectroscopy and x-ray diffraction data. It has been found that 2'-O-Methylcytidine inhibits protein synthesis in cancer cells, and this may be due to its ability to bind to the response element on DNA.</p>

<p>Diquafosol Impurity 2 is a high-purity phosphoramidite that can be used for the synthesis of DNA, RNA, and deoxyribonucleosides. This product is also a novel activator for phosphoramidites. Diquafosol Impurity 2 has CAS No. 63785-59-1 and a molecular weight of 228.24 g/mol. It is insoluble in water, but soluble in most organic solvents.</p>

<p>Polyinosinic acid-polycytidylic acid (Poly I:C), an agonist of TLR3 toll-like receptors, is a synthetic double-stranded RNA analog, consisting of polyinosinic acid (poly I) paired with polycytidylic acid (poly C), forming a stable duplex structure. PolyI:C stimulates the secretion of pro-inflammatory cytokines and type I interferon through its interaction with endosomal Toll-like receptor 3 (TLR-3) and the cytoplasmic receptors melanoma differentiation-associated gene 5 (MDA-5) and retinoic acid-inducible gene I (RIG-I). This immunostimulant activity makes Poly I:C a useful vaccine adjuvant and is used in vaccine formulations.  Poly I:C and its stabilized analogs (e.g., poly-ICLC) are also being actively researched for their dual role in oncology: directly targeting tumors and acting as immune potentiators. For example Poly I:C can induce apoptosis in tumor cells and stimulate immunogenic cell death and is therefore being explored alongside chemotherapy, radiotherapy, and checkpoint inhibitors, helping to overcome resistance mechanisms and strengthen treatment outcomes. We can supply PolyI:C to all stages of your project - from R&amp;D and preclinical phases right up to GMP commercial manufacture. Contact our team for custom Poly I:C products.<br>For more on poly I:C read out blog 'Poly I:C: A Vaccine Adjuvant With Oncological Potential.'</p>

<p>5'-O-DMT-a-thymidine is a modified nucleoside that is used in the synthesis of DNA and RNA. This product is a high quality and pure monophosphate, which has been modified to reduce its potential for activation by phosphatases. It is suitable for use in anticancer drugs and antiviral agents.</p>

<p>N4-Acetyl-2'-deoxy-5-methylcytidine is a novel nucleoside analog of cytidine. It has been shown to be an activator of the immune system, and has antiviral and anticancer properties. This synthetic nucleoside is phosphorylated by kinases in cells to form N4-acetyl-2'-deoxy-5'-methyluridine monophosphate. The phosphate group can be removed by phosphatases in cells to yield N4-acetyl-2'-deoxycytidine, which is a precursor for DNA synthesis.</p>

<p>Thymidine, also known as deoxythymidine (dT), is a pyrimidine deoxynucleoside that pairs with deoxyadenosine (dA) in a double stranded DNA. It’s used as a biochemical modulator of antimetabolites such as 5-fluorouracil (5-FU), 1-beta-D-arabinofuranosylcytosine (Cytarabine) and methotrexate (MTX) in cancer therapy. It’s also the enantiomer of telbivudine, an antiviral drug used to treat hepatitis B virus (HBV) infection.</p>

<p>1-(5-O-Acetyl-2,3-dideoxy-ß-L-glycero-pent-2-enofuranosyl)-5-fluorouracil is a modified nucleoside analog with structural alterations that enhance its biological properties and stability. The compound features 5-fluorouracil as the nucleobase, a fluorinated pyrimidine often used in chemotherapy due to its ability to interfere with DNA replication. The sugar component is 2,3-dideoxy-β-L-glycero-pent-2-enofuranose and has a specific glycerol and enol configuration, which alters its interactions with enzymes involved in nucleic acid metabolism. The compound includes a 5-O-acetyl protecting group at the 5'-position, which shields the hydroxyl group during synthesis.</p>

<p>3'-O-Methyluridine is a nucleoside that is used in the preparation of oligonucleotides and as a substrate for uridine phosphorylase. It is used to study the termination of RNA synthesis, which occurs when there are no more ribose residues in the RNA template strand. When this happens, an adenosine residue is added by polyphosphate kinase to the 3' end of the RNA strand. This addition causes a release of pyrophosphate and leads to end of DNA synthesis. The acid hydrolysis technique can be used to separate 3'-O-methyluridine from other nucleotides. This reaction produces guanosine, which can be detected using polymerase chain reaction (PCR) techniques such as polyacrylamide gel electrophoresis (PAGE).</p>

<p>Cytidyl-3'-5'-uridine ammonium salt is a nucleoside analog that is used as an antiviral and anticancer agent. Cytidyl-3'-5'-uridine ammonium salt inhibits the synthesis of DNA by inhibiting the activity of enzymes such as DNA polymerase, RNA polymerase, or reverse transcriptase. It also has antitumor properties and can be used to treat leukemia and other types of cancer. Cytidyl-3'-5'-uridine ammonium salt has been shown to be more potent than cytidyl-2',4',6'-triaminopyrimidine (CTAP) in inhibiting the growth of lymphocytic leukemia cells.</p>

<p>3'-Amino-3'-deoxy-5'-O-DMT-thymidine is a specifically designed building block for introducing a 3'-amino group into oligonucleotides, primarily at the 3' terminus. The DMT protecting group facilitates incorporation during standard solid-phase synthesis, and the 3'-amino group provides a versatile handle for post-synthetic modifications and conjugations.</p>

<p>2',3',5'-Tri-O-acetyl-2-fluoroadenosine is nucleoside analog of adenosine for use in research. The addition of a fluorine to an adenosine can change adenosine's properties such as its hydrogen bonding ability and how it interacts with water and other biological molecules. It can also increase the stability of adenosine and increase its half-life in biological systems.</p>

<p>2',3'-O-Isopropylideneadenosine is a nucleoside that has a possible usage as an organic chemical synthesis intermediate</p>

<p>L-Cytidine is a nucleoside that is found in the body, and is also used as a drug. It is a precursor to other nucleosides, such as cytidine triphosphate, which is involved in DNA synthesis and repair. L-Cytidine has been shown to be effective against HIV infection by inhibiting the activity of the enzyme ns3 protease. This inhibition prevents viral proteins from being released from cells and infecting other cells. L-Cytidine has also been shown to be an inhibitor of creatine kinase and glycosidation, two enzymes that are necessary for cell metabolism. L-Cytidine has also been shown to be reactive with halides, which may lead to unwanted side effects.</p>

<p>Coenzyme A trilithium salt is a synthetic cofactor that is used in the synthesis of long-chain fatty acids. It is membrane permeable and has minimal toxicity, making it an attractive candidate for treating hepatic steatosis. Coenzyme A trilithium salt also activates human mitochondrial beta-oxidation by increasing the availability of substrate and enhancing the expression of genes involved in beta-oxidation. This molecule has been shown to be effective in improving the symptoms of X-linked adrenoleukodystrophy (X-ALD) by stimulating creatine kinase activity and suppressing lysosomal accumulation of long chain fatty acids.</p>

<p>2'-Deoxy-6-O-methyl-guanosine is a methylated nucleoside that has been shown to inhibit protein synthesis in cancer cells. It does so by inhibiting the synthesis of DNA, which is required for the production of proteins. This compound also inhibits monoclonal antibody production, which may be due to its ability to methylate DNA and prevent dna duplexes from being repaired. 2'-Deoxy-6-O-methyl-guanosine is used as a probe in the detection of human proteins by fluorescence spectroscopy. The sensitivity of this probe has been shown to be greater than 10 ng/mL, making it ideal for use in clinical settings where small quantities of proteins are present.</p>

<p>N6-Benzyladenosine 5'-monophosphate sodium salt is a nucleoside that is not identified. It has been shown to be metabolized by adenosine deaminase and may have antitumor activity. N6-Benzyladenosine 5'-monophosphate sodium salt is also a radioactively labeled adenine analog that has been used in the study of metabolic pathways.</p>

<p>7-Deaza-2'-deoxyxanthosine is an oligodeoxynucleotide that is a substrate for the enzyme dUTPase. The allyl group on 7-deaza-2'-deoxyxanthosine is used to attach it to the 3' end of DNA, where it acts as a competitive inhibitor of RNA synthesis. The ethyl group at the end of the molecule is used to attach it to the 5' end of DNA, where it inhibits transcription and replication by binding with RNA polymerase. 7-Deaza-2'-deoxyxanthosine has been shown to be effective in preventing stenosis following coronary bypass surgery, as well as in treating heart disease by reducing levels of xanthosine.</p>

<p>5-azidomethyl-2-deoxyuridine (AmdU) is a nucleoside that contains an azide group. The structure of the nucleoside is similar to thymidine, and it is incorporated into nascent DNA by cellular polymerases, similarly to EdU (NE08701). Unlike EdU that needs to be further modified with azides in the presence of copper catalyst, AmdU can also react in the absence of copper catalyst using spAAC Click Chemistry with strained cycloalkynes, such as cyclooctynes. This enables detection of nascent DNA in benign, copper free conditions.</p>

<p>5-Chloro-2',3'-dideoxy-3'-fluorouridine is a nucleoside analog that inhibits the replication of HIV by competing with other nucleosides for incorporation into viral DNA, thereby inhibiting the production of new viruses. This drug has been shown to have an inhibitory effect on the replication of HIV and has been approved as an antiretroviral agent. 5-Chloro-2',3'-dideoxy-3'-fluorouridine is active against most HIV strains and is able to suppress viral load in patients with chronic hepatitis B or C. It also inhibits the hepatic metabolism of drugs metabolized by cytochrome P450 enzymes, such as CYP3A4 inducers. The effective dose for this drug ranges from 100 mg to 200 mg per day.</p>

<p>N6-Benzoyl-2',3'-isopropylideneadenosine is a nucleoside that is structurally related to the natural nucleosides adenosine, deoxyadenosine, and deoxyguanosine. It is an antiviral agent that has been shown to be an activator of the enzyme ribonucleotide reductase. N6-Benzoyl-2',3'-isopropylideneadenosine is a modified nucleoside with high purity and high quality. The CAS number for this compound is 39947-04-1. This compound has not been found in nature, but it can be synthesized by modifying nucleosides or by using phosphoramidites.</p>

<p>5-Methylcytidine is a nucleoside that is found in DNA and RNA. It is used in structural biology to probe the structure of DNA. 5-Methylcytidine binds to the enzyme methyl transferase, which catalyzes the transfer of a methyl group from S-adenosylmethionine to produce 5-methyluridine. This reaction occurs in long-term toxicity studies using primary cells, such as lymphocytes and fibroblasts. 5-Methylcytidine has been shown to inhibit tumour growth in mice by binding to nuclear dna polymerase and blocking transcription. The binding site for this drug on the polymerase is located at the same site as that for nucleoside analogues like azidothymidine (AZT) and zidovudine (AZT).</p>

<p>Deoxyadenosine analog resistant to adenosine deaminase</p>

<p>Glycinamide ribonucleotide (GAR) is a reactive metabolite that is formed from glycinamide, which is an intermediate in the synthesis of purines. GAR has been shown to bind to intracellular targets and inhibit their enzyme activities. GAR has been shown to inhibit the activity of enzymes that are involved in the synthesis of purines, such as ribonucleotides and nucleoside phosphates. These enzymes have been found in human tissues. GAR also inhibits the polymerase chain reaction (PCR) by binding to DNA and inhibiting its replication. This drug has also been shown to be effective against bowel disease by binding to bacterial dna gyrase, dna topoisomerase, and rna synthesis.</p>

<p>2'-Deoxy-2'-fluoro-5-iodouridine is a nucleoside analog that is a modified version of uridine, where the 2'-fluoro modification is added to the sugar (deoxyribose), and an iodine atom is attached at the 5' position of the uracil base. This combination of modifications provides unique properties that may be useful for research and therapeutic applications.</p>

<p>5-Iodocytidine is a nucleoside analogue that has been shown to possess potent antitumor activity. It is also used as a fluorescent probe for detection of uridine in biological samples. 5-Iodocytidine is structurally similar to uridine, which allows it to be taken up by cells and incorporated into RNA. This analog can also be detected with antibody response, as well as with the use of a fluorescence microscope. 5-Iodocytidine may have the potential to treat infectious diseases and autoimmune diseases because it binds to response elements on DNA and activates gene transcription.</p>

<p>N2-DMF-5'-O-DMT-2'-O-methylguanosine is a novel nucleoside analog that has antiviral, anticancer and immunomodulating properties. It is synthesized from 2′,3′-dideoxyadenosine 5′-monophosphate by the condensation of 2,6-dimethylaniline with methylguanosine 5′-monophosphate and 5,6-dimethylaniline. The modification of the guanine base in N2-DMF-5'-O-DMT-2'-O-methylguanosine to an O6 -methyl group results in increased affinity for the ribonucleotide reductase enzyme (RNR) and inhibition of DNA synthesis.</p>

<p>Polyinosinic acid is a single stranded RNA analog which is combined with polycytidylic acid (poly C) to form a stable duplex structure known as Polyinosinic acid-polycytidylic acid (Poly I:C). PolyI:C stimulates the secretion of pro-inflammatory cytokines and type I interferon through its interaction with endosomal Toll-like receptor 3 (TLR-3) and the cytoplasmic receptors melanoma differentiation-associated gene 5 (MDA-5) and retinoic acid-inducible gene I (RIG-I). This immunostimulant activity makes Poly I:C a useful vaccine adjuvant and is used in vaccine formulations.  Poly I:C and its stabilized analogs (e.g., poly-ICLC) are also being actively researched for their dual role in oncology: directly targeting tumors and acting as immune potentiators. For example Poly I:C can induce apoptosis in tumor cells and stimulate immunogenic cell death and is therefore being explored alongside chemotherapy, radiotherapy, and checkpoint inhibitors, helping to overcome resistance mechanisms and strengthen treatment outcomes. We can supply PolyI:C to all stages of your project - from R&amp;D and preclinical phases right up to GMP commercial manufacture. Contact our team for custom Poly I:C products.<br>For more on poly I:C read out blog 'Poly I:C: A Vaccine Adjuvant With Oncological Potential.'</p>

<p>2',3'-O-Isopropylidenecytidine is a nucleoside for use in research applications</p>

<p>2-Hydrazinoadenosine is an active analogue of adenosine. It is a potent agonist for the adenosine receptor subtypes A1 and A2A with high affinity. 2-Hydrazinoadenosine has been shown to inhibit cardiac contractility in animal models, as well as to produce hypotension, bradycardia, and bronchodilation in humans. This drug also has a functional effect on the heart by binding to adenosine receptors, which leads to the inhibition of catecholamine release. This drug is used clinically as an antiarrhythmic agent and a vasodilator in coronary artery disease.</p>

<p>2'-Phosphoadenosine 5'-phosphosulfate tetralithium salt (mixture with 3'-isomer) is a novel, modified nucleoside. It has antiviral properties and can be used for the treatment of cancer. 2'-Phosphoadenosine 5'-phosphosulfate tetralithium salt (mixture with 3'-isomer) inhibits viral replication by inhibiting the synthesis of viral DNA and RNA. This compound also inhibits cancer cell proliferation by inhibiting deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) synthesis.</p>

<p>Uridine-3',5'-cyclic monophosphate sodium salt is a phosphotriester that is an intermediate in the biosynthesis of nucleosides. It is also a phosphodiesterase inhibitor, which means it inhibits the breakdown of cyclic nucleotides and allows them to accumulate. This drug has been shown to increase platelet production and has anti-inflammatory effects. Uridine-3',5'-cyclic monophosphate sodium salt is a human metabolite that can be synthesized from uridine, which is present in DNA, RNA, and food sources such as meat, eggs, and milk. The synthesis of uridine-3',5'-cyclic monophosphate sodium salt requires phosphoramidite as a precursor.</p>

<p>Abacavir 5'-phosphate is a nucleoside analog that inhibits the replication of the herpes virus by covalently binding to the viral DNA polymerase and blocking its ability to polymerize dNTPs. Abacavir 5'-phosphate's anti-viral potency has been shown in vivo using a model with herpes simplex virus, and it has been shown to inhibit viral replication in cell culture. The drug also reacts with cellular components such as proteins, lipids, and nucleic acids, which may lead to drug reactions. Abacavir 5'-phosphate is chemically stable, so it can be subjected to analytical methods without degradation. It is an analog of zidovudine (AZT).</p>

<p>3'-Deoxycytidine-5'-triphosphate is a modified nucleoside that is the precursor for DNA synthesis. It is an activator of deoxyribonucleoside triphosphates, which are needed in the production of DNA. 3'-Deoxycytidine-5'-triphosphate has been shown to be active against cancer cells and antiviral agents. This chemical also inhibits viral RNA synthesis by blocking the conversion of ribonucleotides to deoxyribonucleotides. 3'-Deoxycytidine-5'-triphosphate is novel and high purity, with a CAS number 69383-05-7.</p>