Building Blocks

<p>5-Phenyl-1,3,4-oxadiazol-2-ol is an organic compound that belongs to the heterocyclic compounds. It is a white solid at room temperature with a melting point of 117°C. The reaction of 5-phenyl-1,3,4-oxadiazol-2-ol with hydrochloric acid gives solvents and polyelectrolytes. This compound also reacts with amines to give ring opening polymerization products and with anilines to give oxadiazolones. 5-Phenyl-1,3,4-oxadiazol-2-ol has been shown to have 5HT4 receptor agonist activity in mice and has been used as a lead compound for drug development against depression and anxiety disorders.<br>5HT4 receptors are located on the nerve cells in the brain and spinal cord and are involved in regulating mood and anxiety levels.</p>

<p>3-Phenylbut-2-enoic acid is a prochiral, carbonyl compound that can be used in the synthesis of chiral pharmaceuticals. Mechanistic studies have shown that 3-phenylbut-2-enoic acid is a catalytic hydrogenation reagent that converts prochiral substrates to their corresponding chiral products. When combined with binap and butenoic acid, 3-phenylbut-2-enoic acid can catalyze the asymmetric synthesis of butenoate. The reaction yields high enantiomeric excesses and good yields.</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

Versatile small molecule scaffold

Versatile small molecule scaffold

<p>4-Methoxyphenyl acetate is the product of a chloroformate reaction with an alcohol. It has been synthesized in high yield and purified by recrystallization from hexahydrate to produce a white crystalline solid. This compound is soluble in water and chloroform, and is stable at room temperature. 4-Methoxyphenyl acetate has been shown to be active against influenza virus strains Covid-19, H1N1, H3N2, PR8, H5N1, and H7N7. The mechanism of action is not fully understood but this molecule may act as a substrate for the enzyme active site of the viral polymerase complex or interfere with viral nucleic acid replication.</p>

<p>2-(2-Dimethylamino-ethoxy)-phenylamine is a colorless liquid with a boiling point of 212 °C. The detection limit for this compound is 2 ppm. It has an acidity of 0.1 and can be synthesized from the reaction of two equivalents of phenol and two equivalents of ethylenediamine in the presence of conc. sulfuric acid, followed by reduction of the nitro group to an amine. This compound is used as an intermediate in the synthesis of several drugs such as amphetamine, methamphetamine, and ephedrine, as well as pharmaceuticals such as levamisole, clonidine, and mepyramine hydrochloride.<br>2-(2-Dimethylamino-ethoxy)-phenylamine can be detected using UV spectroscopy at wavelengths between 260 nm and 270 nm with maximum absorption at 266 nm.</p>

Versatile small molecule scaffold

Versatile small molecule scaffold

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

Versatile small molecule scaffold

Versatile small molecule scaffold

<p>4'-Chloro-biphenyl-2-ylamine is an organic solvent that is used in alkalization and as a reagent in chemical reactions. It has been shown to be bactericidal, with a broad spectrum of activity against Gram-positive and Gram-negative bacteria. 4'-Chloro-biphenyl-2-ylamine can be synthesized by the reaction of biphenyl with hydrogen chloride, producing an azide and chloride. The azide reacts with chloroacetic acid to produce the desired compound.</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

Versatile small molecule scaffold

Versatile small molecule scaffold