Building Blocks

<p>4-Chloro-2-methyl-5-nitroaniline is an organic compound with the chemical formula C6H4ClNO2. It is a nitro derivative of aniline. 4-Chloro-2-methyl-5-nitroaniline is a white solid that is soluble in water, alcohols, and ethers. It has a melting point around 206 °C and decomposes at temperatures over 350 °C. This compound can be obtained by reacting hydroxylamine with nitrous acid and chlorinating 2,5-dimethylaniline. The sequence of reactions can be summarized as follows: hydroxy group to nitro group, nitro group to methyl group, methyl group to acetyl or acetylamino, acetyl or acetylamino to acetylation or methylation, transformation from hydroxyl group to amino group and esterification from acid hydrazide to acid group.</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>1,4-Dimethyl 2-hydroxy-2-methylbutanedioate is an allylating agent that modifies the amino acid lysine residues in proteins. It has been shown to be effective in the treatment of skin lesions caused by Staphylococcus aureus and other bacteria because it inhibits bacterial growth through an antimicrobial effect. 1,4-Dimethyl 2-hydroxy-2-methylbutanedioate also has been used as a precursor for the synthesis of vitamin D3. This compound is metabolized in mammalian cells to form cysteamine, which is further converted to S-(1,4-dimethylpentadienoyl)cysteamine (DMPE). The resulting product can be used as a functional group on collagen or malic acid. 1,4-Dimethyl 2-hydroxy-2-methylbutanedioate also is used for modifications of mucocutaneous tissues such as skin and oral muc</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>Versatile small molecule scaffold</p>

<p>Ethyl 5-oxo-3-thioxo-2H-1,2,4-triazine-6-carboxylate is an acid ethyl ester of the triazine compound ethyl 3,5,6,7,8,-tetrahydro-2H-[1]benzothiopyran-2,4(3H)-dione. It has been shown to inhibit bacterial growth by binding to the enzyme ribonucleotide reductase.</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>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>Versatile small molecule scaffold</p>

<p>Tert-butyl (2S)-2-aminohexanoate is an intermediate that is used in the synthesis of glycine by the reaction of benzyl bromide and tert-butyl amine. The stereospecifically incorporated tert-butyl group has a high degree of enantioselectivity, which makes this intermediate useful in the synthesis of glycine. Tert-butyl (2S)-2-aminohexanoate can be synthesized using lithium diisopropylamide and a tertiary amine as an alkylating agent.</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>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Flindersia laevicarpa is a small tree native to Australia. The leaves of the tree are used for medicinal purposes and contain 1,5-diphenylpentan-3-ol. Flindersia laevicarpa has been shown to have anti-inflammatory and antioxidant properties, as well as an ability to inhibit platelet aggregation.</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>3,5-dimethoxyphenyl isothiocyanate (3,5-DMPIC) is a benzimidazole derivative that has been shown to be a potent and selective antagonist of the gonadotropin-releasing hormone (GnRH). 3,5-DMPIC has been shown to desensitize GnRH receptors on the pituitary gland and may have applications in the treatment of prostate cancer. It also inhibits the release of luteinizing hormone and follicle stimulating hormone from the pituitary gland.</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>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>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>