Building Blocks

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Naphthalene-2-carboximidamide is a benzamidine derivative that interacts with the active site of serine proteases. It was shown to have potent inhibitory potency against a number of proteinases, including urokinase-type plasminogen activator (uPA), matrix metalloproteinase-9 (MMP-9), and cathepsin G. The interaction of naphthalene-2-carboximidamide with uPA was specific and led to inhibition of its catalytic activity. Naphthalene-2-carboximidamide has been tested in clinical trials for the treatment of influenza.</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Methyl 4-hydroxy-2-sulfanylquinoline-3-carboxylate (MSQ) is a synthetic molecule that has shown to have antiviral activity against the hepatitis B virus. This compound is a competitive inhibitor of the virus and prevents it from infecting cells. MSQ has also been shown to inhibit other viruses, such as herpes simplex virus, influenza A and C, rotavirus, and human immunodeficiency virus type 1 (HIV-1). The high inhibition of MSQ can be attributed to its ability to form hydrogen bonds with the amino acid residues in viral proteins. Additionally, MSQ interacts with anions in the active site of the enzymes that are necessary for viral replication through alkylation reactions.<br>MSQ has been found to be selective for influenza A and C by binding at different sites on the enzyme compared to other compounds like zanamivir and oseltamivir. The single-crystal x</p>

<p>Versatile small molecule scaffold</p>

<p>Dicyclohexylmethanol is a trifunctional compound that contains a hydroxyl group, and can be used as a hydrogen bond donor or acceptor. The chemical structure of dicyclohexylmethanol can be seen in the figure below. Dicyclohexylmethanol has been used for sample preparation for hydrogen chloride gas. It has also been used to determine the concentration of blood ethanol levels and to measure blood pH in humans. Dicyclohexylmethanol is an important reactant in asymmetric synthesis reactions due to its ability to form hydrogen bonds with both reactants.</p>

<p>2-[(4-Oxo-3,4-dihydroquinazolin-2-yl)methyl]benzoic acid is an acylating agent that forms a covalent bond with the amino group of a protein. It has been shown to react with both aromatic and aliphatic groups, but not with hydroxyl groups. 2-[(4-Oxo-3,4-dihydroquinazolin-2-yl)methyl]benzoic acid is commonly used in the synthesis of isoquinolines. This chemical is soluble in water and can be obtained as a yellow solid.</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>