Nucleotídeos

4-Bromo-3,5-dichloropyridine is a reactive intermediate that is used as a reagent in organic synthesis. It has low basicity and reacts with lithium to form the lithium salt. The salt can be deprotonated to form the bromide anion, which is more reactive than the chloride anion. 4-Bromo-3,5-dichloropyridine can also be used for the selective isomerization of ketones and related compounds. Bromine is added to prevent side reactions with oxygen. The intermediates are generated at the site of reaction by using an excess of diisopropylamide over bromination agent.

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.

Polycytidylic acid is a single stranded RNA analog which is combined with Polyinosinic acid 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&D and preclinical phases right up to GMP commercial manufacture. Contact our team for custom Poly I:C products.
For more on poly I:C read out blog 'Poly I:C: A Vaccine Adjuvant With Oncological Potential.'

2'-Deoxy-L-uridine is a nucleoside that is found in the human body. It phosphorylates l-thymidine, which is a natural substrate, and this reaction prevents the formation of diphosphate from d-ribose 5'-monophosphate. 2'-Deoxy-L-uridine is an exogenous substance that inhibits cell growth by affecting protein synthesis and DNA replication. 2'-Deoxy-L-uridine has been shown to be more efficient than wild type uridine in inhibiting cell growth in vitro at concentrations of 1 mM or greater. The enantiomers of 2'-deoxy-L-uridine affect cell growth differently, with the (R)-enantiomer being more potent than the (S)-enantiomer.

2',3'-O-Isopropylidenecytidine is a nucleoside for use in research applications

Adenosine 5'-diphosphate disodium salt is a sodium salt of adenosine 5'-diphosphate. It is found in the extract of plants such as salvianolic acid and rhizoma gastrodiae, as well as in dinucleotide phosphate. This product has been shown to have cardioprotective effects against ischemia reperfusion injury in animal models. It also has congestive heart failure activity, which may be due to its ability to relax vascular smooth muscle and increase the diameter of lymphatic vessels. Adenosine 5'-diphosphate disodium salt has been shown to inhibit the binding of serotonin (5-hydroxytryptamine) to 5-HT2 receptors, which are present in heart tissue.