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>Pyrazolo[1,5-a]pyridin-4-ol is a heteroaromatic compound that acts as an inhibitor of phosphodiesterase (PDE). It prevents the breakdown of cyclic nucleotides and thus leads to increased levels of cAMP and cGMP. Pyrazolo[1,5-a]pyridin-4-ol has been shown to have bronchodilatory activity in animal models. The drug also inhibits the production of inflammatory mediators such as prostaglandins by inhibiting cyclooxygenases. In addition, pyrazolo[1,5-a]pyridin-4-ol has been shown to be a potential PDE inhibitor replacement for the more commonly used PDE inhibitors such as sildenafil and tadalafil. However, due to its lack of stereochemistry and its bicyclic chemical structure, pyrazolo[1,5-a]</p>

<p>5-Vinylnicotinic acid methyl ester belongs to the group of antimicrobial agents. It is a chemical compound that has been shown to be effective against cervical cancer and may have potential as an anticancer drug. 5-Vinylnicotinic acid methyl ester inhibits the growth of human chorionic gonadotropin (HCG) in women, which is a hormone necessary for ovulation and pregnancy. This compound also inhibits the growth of viruses, such as herpes simplex virus type 1 (HSV-1), and bacteria, such as dittrichia sp., which causes inflammation of the throat. 5-Vinylnicotinic acid methyl ester has also been shown to inhibit protein synthesis in human osteosarcoma cells at low concentrations, but not at high concentrations.</p>

<p>Versatile small molecule scaffold</p>

<p>N-Methyl-4-phenoxyaniline is a molecule that inhibits chitinase, an enzyme that catalyzes the hydrolysis of chitin, and molting. N-Methyl-4-phenoxyaniline has been shown to be potent inhibitor of the enzyme amide in vitro. It also inhibits onchocerca volvulus and in vivo, which may be due to its ability to inhibit the synthesis of fatty acids. This drug has not been tested against other parasites or mammals, but it is an anthelmintic drug.</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>2-Bromo-3,3,3-trifluoro-1-propene is a chemical compound that has been synthesized in an asymmetric reaction. The reactant is bromopropane and the product is 2,2,2-trifluoropropene. The methylene group on the propene molecule is activated by the nucleophilic attack of a fluoride ion from hydrogen fluoride to form a cavity with a highly strained bond. The kinetic study of this reaction revealed that the activation energy for the reaction is 42 kJ/mol. Palladium-catalyzed coupling reactions are catalyzed by palladium and require nonpolar solvents such as toluene or dichloromethane. This type of reaction has been shown to be exothermic with an isolated yield of 1%.</p>