Backbone Sugars and Nucleobases

<p>Applications Tris(trimethylsilyl)guanine is an intermediate used in the synthesis of 9-(2-Hydroxyethyl)guanine (H942035), which is an impurity of the antiviral agent Acyclovir (A192400). 9-(2-Hydroxyethyl)guanine is a nucleoside phosphotransferase acceptor.<br>References Kamimura, A. et al.: Agric. Biol. Chem., 37, 2037 (1973);<br></p>

<p>Applications 5-O-Trityl-2,3’-anhydrothymidine (cas# 25442-42-6) is a compound useful in organic synthesis.<br></p>

<p>Applications Adenine Hydrochloride can be utilized in uses for enhanced detection of hydrogen peroxide with platinized microelectrode arrays for analyses of mitochondria activities. It can also be used for biological use in method for producing Cordyceps sinesis by fermentation.<br>References Ben-Amor, S., et al.: Electrochim. Acta., 126, 171-178 (2014); Jia, J., et al.: Faming Zhuanli Shenqing, CN 101407767 A 20081117 (2008);<br></p>

<p>Applications N2-Acetyl-O6-diphenylcarbamoylguanine is a reactant in the synthesis of 1',2'-oxetane-nucleosides bearing 2'-C-Me substituents with anti-HCV activity.<br>References Komsta, Z., et. al.: Tetrahedron Lett., 55, 6216 (2014)<br></p>

<p>Applications 5-Carboxy-2-thiouracil is a possible anti-tumor agent when part of a metal complex.<br></p>

<p>Applications A DNA adduct ethylene oxide hydroxyethylnitrosourea. It is also used in the preparation of acyclic nucleosides and nucleotides as antiviral agents.<br>References Snoeck, R., et al.: Antimicrob. Agents Chemother., 32, 1839 (1988), Bronson, J., et al.: J .Med. Chem., 32, 1457 (1989), Balzarini, J., et al.: J. Biol. Chem., 266, 8686 (1991),<br></p>

<p>Applications Pyrimidine with the ability to form complexes with heavy metal ions.<br>References Iltzsch, M., et al.: Biochem. Pharmacol., 48, 781 (1994),<br></p>

<p>Applications 5-Azauridine (cas# 1476-82-0) is a useful research chemical.<br></p>

<p>8-Methoxymethyl-1-methyl-3-(2-methylpropyl) xanthine (8MMX) is an intracellular calcium ion chelator that inhibits enzyme activity in the cyclic nucleotide phosphodiesterase enzyme family. 8MMX has been shown to be a potent inhibitor of both cyclic nucleotide phosphodiesterases and cyclic nucleotide phosphodiesterase isoenzymes. 8MMX has been shown to inhibit bladder contractility and improve bladder function in animal models. It also reduces the incidence of papillary muscle rupture, which can lead to heart failure, and improves ventricular function by increasing the rate of relaxation of the left ventricle.<br>8MMX is a potential treatment for pulmonary hypertension, which is caused by increased concentrations of intracellular calcium ions.</p>

<p>6-Amino-5-nitroso-2-thiouracil is a water molecule that has been synthesized and characterized by the kinetic method. It has an intense absorption line at 514 nm and can be used as a marker for technetium. 6-Amino-5-nitroso-2-thiouracil is also a ligand, which is a chemical that binds to metal ions in order to form coordination complexes. 6-Amino-5-nitroso-2-thiouracil is formed by the reaction of chloramine with ammonia, as well as other reactions involving chlorine atoms. 6Amino - 5 nitroso - 2 thiouracil can be used as a chelate ring, which is a type of ligand that contains both nitrogen and sulfur atoms. Bleomycin, a five membered ring molecule, reacts with 6 amino - 5 nitroso - 2 thiouracil to</p>

<p>8-Cyclopentyl-1,3-dimethylxanthine (CPT) is a xanthine derivative that binds to the adenosine receptor and inhibits the phosphodiesterase enzyme. CPT is used in vivo as a model for measuring locomotor activity, dopamine receptors, adenosine receptors, and glutamate receptors. The binding of CPT to these receptors can lead to bronchoconstriction by stimulating the release of vasoactive substances from airway cells and increasing the sensitivity of airway cells to bronchoconstrictor stimuli. This drug also has been shown to inhibit calcium ion influx into cytosol and increase intracellular levels of cAMP.</p>

<p>1-(2,3-Dihydroxypropyl)-3,7-dihydro-3,7-dimethyl-1H-purine-2,6-dione (theophylline) is a bronchodilator and anti-inflammatory agent. It is used to treat asthma and other respiratory conditions. Theophylline is structurally similar to caffeine and theobromine and has been shown to have a similar effect on the heart and blood vessels as these stimulants. It also stimulates the central nervous system in a manner similar to that of theobromine. Theophylline has shown some benefit in congestive heart failure patients but has not been proven effective for treating high blood pressure or fibrillation.</p>