Building Blocks

<p>Versatile small molecule scaffold</p>

<p>2-Phenylpiperidine hydrochloride is a diastereoselective, intramolecular reaction product of β-unsaturated ketones and piperidines. The synthesis of 2-phenylpiperidine hydrochloride involves a β-unsaturated ketone and two different piperidines. The reaction is intramolecular because the starting material is used in the same molecule as the reagent. This compound was shown to be a competitive inhibitor of serotonin transporter (SERT) with an IC 50 value of 0.8 μM.<br>Synlett, 2008, 2987-2989</p>

<p>Versatile small molecule scaffold</p>

<p>[(1H-Indol-4-yl)methyl](methyl)amine is a substituted isoquinoline. It has been shown to be an effective inhibitor of the enzyme allyl alcohol dehydrogenase, which catalyzes the conversion of allyl alcohol to acetaldehyde. The reduction of [(1H-indol-4-yl)methyl]-(methyl)amine can be accomplished with either a Grignard reagent or a reductive alkylation.</p>

<p>2,3-Diphenylindole is a benzyl-substituted indole with the chemical formula C14H10N2. It is an organic compound that was first synthesized in 1887 by German chemist Adolf von Baeyer. 2,3-Diphenylindole was one of the first aromatic compounds to be synthesized from benzene. The synthesis of 2,3-diphenylindole involves Friedel-Crafts reactions with amines and azides. Benzyl groups can be cleaved from the molecule under UV irradiation or by treatment with carboxylic acid. Reaction yields are increased when primary amines are used as the starting material, since they are more reactive than secondary amines or tertiary amines.</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>4-Bromo-N-propylbenzenesulfonamide is a tricyclic compound that has two skeletal carbons and three cyclic carbons. It is structurally similar to 4-bromobenzenesulfonyl chloride, but it lacks the sulfonyl group and instead has a sulfonamide group. The yields of this compound are high, with an average of 77% obtained from the reaction with 4-bromobenzoic acid. However, when there are substituents on the ring, such as in the case of 4-chloro-N-propylbenzenesulfonamide, the yield decreases significantly. This compound can be synthesized by reacting 4-bromoaniline with propylene oxide followed by reaction with bromosulfonic acid and sodium hydroxide.</p>

<p>2-Hydroxy-2-methylcyclohexan-1-one is a tetroxide that is a ligand for osmium. It can be used as an oxidant to produce epoxides, which are important chemical intermediates. This substance has been used in the synthesis of cyclic epoxides and osmium complexes. The yields of this reaction depend on the ligand and the metal catalyst that is used. Epoxidation is catalyzed by metal ions such as vanadium, manganese, or iron, with ruthenium being one of the most effective. 2-Hydroxy-2-methylcyclohexan-1-one also forms epoxides with oxygenated substrates due to its ability to act as an oxidant.<br>Epoxidation reactions can be performed using 2-hydroxy-2-methylcyclohexan-1-one as a catalyst or ligand, or it may function solely as an oxid</p>

<p>Versatile small molecule scaffold</p>

<p>Versatile small molecule scaffold</p>

<p>2,5-Dibromoadipic acid is an organic compound that can be synthesized by oxidation of 2,5-dibromohexanoic acid with sodium periodate in aqueous alcohol. It is used as a monomer for the production of polymers and plastics such as polyurethanes and polyesters. The product is obtained in high yield and has a stereoselectivity of 99%. It can be purified by recrystallization from water or from organic solvents.<br>2,5-Dibromoadipic acid reacts with nucleophiles such as alcohols to form an addition compound. The addition reaction can be followed by spectroscopic methods such as diffraction or NMR. This reaction type is called nucleophilic addition.</p>

<p>2,3,5,6-Tetrachloroaniline is a chlorinated aromatic compound that is used as an intermediate for the production of other chemicals. It undergoes a number of reactions to form various chemical compounds. 2,3,5,6-Tetrachloroaniline has been shown to be reactive with hydrogen chloride in a two-step process involving acid formation and molecule elimination. The rate of this reaction depends on the concentration of hydrogen chloride present in solution. 2,3,5,6-Tetrachloroaniline also reacts with water to produce hydrochloric acid and tetrachloroethane. This reaction is reversible and can be described by the following equation:<br>2CCl4 + 4H2O -&gt; 4HCl + C2H4 + Cl2 <br>The reaction mechanism for this process is not well understood but it is likely that it involves protonation followed by nucleophilic substitution.</p>

<p>2-(Methylamino)-5-nitrobenzoic acid is a benzimidazole that contains a planar, aromatic ring and an amino group in the side chain. The compound is a hydrogen bond donor and acceptor. It undergoes oxidative cyclisations to form benzoic acids from anilines, which are generated through hydrogen atom abstraction. 2-(Methylamino)-5-nitrobenzoic acid also reacts with other aromatic compounds to form dimers or benzoic acids.</p>

<p>5-Chloro-2-phenoxyphenol (5CPP) is a phenolic compound that inhibits bacterial growth by binding to the diphenyl ether binding site on the enzyme fatty acid synthase. 5CPP is an inhibitor of bacterial fatty acid biosynthesis and has been shown to be effective against wild-type strains of staphylococcus aureus, including methicillin resistant strains. 5CPP binds to the active site of the enzyme and prevents it from functioning, thereby inhibiting production of fatty acids. It also has shown activity against Listeria monocytogenes and Bacillus subtilis.</p>

<p>2-Methoxy-2-phenylethan-1-amine is a modification of an amino acid that can be used to synthesize drugs. It belongs to the chemotype phenethylamines, which are compounds that contain a benzene ring and an amine group. 2-Methoxy-2-phenylethan-1-amine has been shown to bind to dopamine D4 receptors in the brain, which may contribute to its psychoactive effects. This compound is also able to inhibit chemokine production, which may help with inflammatory conditions such as asthma.</p>