Carboxylic Acids

L-Aspartic acid alpha-tert-butyl ester is a synthetic amino acid that can be used as a substrate for the synthesis of L-cysteine in the presence of selenomethionine. This compound is an auxotroph and cannot be synthesized by the body, so it must be obtained through diet or supplementation. It has been shown to have anti-cancer properties, which may be due to its role in regulating cell proliferation, apoptosis, and angiogenesis. L-Aspartic acid alpha-tert-butyl ester may also inhibit colon cancer cells by preventing them from recycling proteins. This compound was shown to inhibit HCT116 human colon cancer cells in both experimentally and computationally studies. Additionally, this molecule was seen to induce tumor regression in mice with colitis by inhibiting eukaryotic protein synthesis. This inhibition was found to be mediated through a trifluoromethyl group on the molecule's

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(R)-2-Hydroxysuccinic acid methyl ester is a potent inhibitor of microglial cells. It has been shown to inhibit the production of inflammatory cytokines such as IL-1β, IL-6, and TNF-α from murine microglial cells. The inhibitory activity was also found in alpha-tocopherol, which is a potent anti-inflammatory agent. Bioactivity guided fractionation led to the isolation of (R)-2-hydroxysuccinic acid methyl ester from the methanolic extract of Staphyleaceae species. This compound was also isolated from Japonica and Megastigmane species and was found to have an inhibitory effect on bv2 microglial cells.

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Di-tert-butyl azodicarboxylate (DTBA) is an organic compound that is used in organic synthesis as a dienophile. DTBA reacts with various electrophiles to form dihydro derivatives through a transfer mechanism, which can be monitored by the change in magnetic resonance spectroscopy signals. The reaction of DTBA with trifluoroacetic acid and hydrogen chloride forms the desired product, 3-amino-2,4,6-trichloropyridine. DTBA is also used for the synthesis of 1,4-dihydropyridines from 2-aminobenzene derivatives and bromoacetaldehyde diethyl acetal. This process is catalyzed by palladium on carbon. DTBA is asymmetric at position C5 and C6 because it has two chiral centers: one at C3 and one at C5 or C6. The use of this reagent allows for the scalable

2-Methoxy-1-naphthaleneboronic acid is a ligand for asymmetric synthesis. It is used in the demethylation of carbinols and halides to produce enantiopure carbinols and halides. The compound is also used as a chiral auxiliary in the kinetic resolution of racemic carboxylic acids to produce optically pure acids. In addition, 2-methoxy-1-naphthaleneboronic acid has been shown to be an effective catalyst for the catalytic asymmetric cross coupling of aldehydes with trifluoromethanesulfonate (triflate). The crystal structures of this compound have been determined by x-ray crystallography. 2-Methoxy-1-naphthaleneboronic acid is prepared by treating naphthaldehyde with boric acid in ethanol at refluxing temperature.

R-Acetylmandelic acid is an organic compound that is a racemic mixture of two enantiomers. It is an intermediate in the biosynthesis of succinic acid and it can be used to produce other chiral compounds. R-Acetylmandelic acid can be obtained from the human body and urine or synthesized from propionic acid. The structure of this molecule contains both carboxylic acid and amine functional groups, which are often used as reagents for derivatization reactions. The chirality of R-Acetylmandelic acid can be determined using analytical methods such as gas chromatography or high performance liquid chromatography. This compound is known to have a purity level of 99%.

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