Heterocyclic Compounds

<p>Impurity Abacavir - In House Impurity<br>Applications rac 2-Azabicyclo[2.2.1]hept-5-en-3-one (Abacavir - In House Impurity) is a useful reagent in the synthesis of carbocyclic sugar amines, carbanucleosides, and carbocyclic dinucleotide analogues (1). rac 2-Azabicyclo[2.2.1]hept-5-en-3-one is also an intermediate of Abacavir (A104990), a carbocyclic 2'-deoxyguanosine nucleoside reverse transcriptase inhibitor and anti-HIV drug used to treat HIV infection (1). Intracellular enzymes convert Abacavir to its active form, carbovir-triphosphate (CBV-TP), which then selectively inhibits HIV reverse transcriptase by incorporating into viral DNA (2). Abacavir is metabolized in the liver by uridine diphosphate glucuronyltransferase and alcohol dehydrogenase resulting in inactive glucuronide and carboxylate metabolites, respectively.<br>References (1) Slama, J.T., et al.: Biochemistry, 27, 183 (1988) (2) Jackson, A., et al.: Antivir Ther. 17, 19 (2012) (3) Yuen, G. J., et al.: Clin Pharmacokinet. 47, 351 (2008)<br></p>

<p>Applications 1-Ethylpyrrole (cas# 617-92-5) is a useful research chemical.<br></p>

<p>Applications pyridazin-4-ylmethanol (cas# 50901-43-4) is a useful research chemical.<br></p>

<p>Stability Hygroscopic<br>Applications 3-(1-Nitroethyl)-2-benzofuran-1(3H)-one (cas# 79017-08-6) is a useful research chemical.<br></p>

<p>Applications Sulfinpyrazone sulfone can be used to help with atherosclerosis in various animals. This compound can be used in High Pressure-Liquid Chromatography.<br>References Lentjes,E.G., et.al., Pharm.Weekbl.7,252-259,(1986); Clopath, P.et.al., Cardiovasc.Actions Sulfinpyrazone: Basic Clin. Red., Proc.Int.Symp., 121-137,(1980);<br></p>

<p>Applications Phenazine methosulfate is a compound used to determine nitric oxide reductase activity. Used in the discovery of potent bromophenazine antibacterial agents against Staphylococcus.<br>References Watanabe, A. et al.: Neurosci., 339, 139 (2016);<br></p>

<p>Applications oxazole-4-carbohydrazide (cas# 885274-12-4) is a useful research chemical.<br></p>

<p>Applications 2-Aminothiazole-4-carboxamide is a useful intermediate for organic synthesis and other chemical processes.<br>References Sanghvi, Y. S., et al.: J. Heterocycl. Chem., 25, 623 (1988); Wu, J., et al.: Bioorg. Med. Chem. Lett., 17, 4664 (2007)<br></p>

<p>Applications Phenazine (cas# 92-82-0) is a compound useful in organic synthesis.<br></p>

<p>Applications N-Nitroso-4-hydroxy Pyrrolidone is an N-Nitroso impurity, Nitrosamines are known carcinogens in a wide range of animal species.<br>References Ohshima, H., et al.: Cancer Lett., 26, 153, (1985)<br></p>

<p>Applications N,N'-Dimethylpiperazine is used in preparation of two-component raw material of high-strength Polyurethane Insulation pad for cold storage.Also, used in preparation of Methylaliphatic Amines from aliphatic Amines and Methanol.<br>References Dou, Z., et al.: Faming Zhuanli Shenqing, (2020); Li, F., et al.: Faming Zhuanli Shenqing, (2020);<br></p>

<p>Applications Tetrahydrofuran-2,5-dicarboxylic acid (CAS# 6338-43-8) is a useful research chemical compound.<br></p>

<p>Applications 2-carboxythiophene-3-boronic acid (cas# 5503-74-2) is a useful research chemical.<br></p>