These data emphasize the importance of regulation of the citric acid cycle at the citrate synthase step.Marc E. Tischler and Dagmar Friedrichs and Kathleen Coll and John R. WilliamsonArchives of Biochemistry and BiophysicsTischler, M.E., Friedrichs, D., Coll, K., Williamson, J.R.: Pyridine ...
The invention relates to pyridine-2,4- and -2,5-dicarboxylic acid derivatives of the formula I ##STR1## in which R1, R2 and X have the meanings given, a process for the preparation of these compounds and their use, in particular in medicaments for influencing the metabolism of collagen ...
Persons skilled in the art will recognize that the chemical reactions described may be readily adapted to prepare a number of other compounds of the invention, and alternative methods for preparing the compounds of this invention are deemed to be within the scope of this invention. For example, ...
In a parallel pathway involving both enzymatic and nonenzymatic reactions during inflammation, leukocytes are activated to secrete myeloperoxidase, which mediates the formation of hypochlorous acid (HOCl) from hydrogen peroxide and chloride (5). Aldehydes such as GA, which is formed by reaction of HOCl...
use. All reactions requiring anhydrous conditions were run in flame-dried glassware under argon. 2.2. Synthesis of receptors 1-(6-h4ethyl-2-pyridyl)-2,5-dimethylpyrrole was obtained from 2-amino-6-methylpyridine and acety- lacetone following the procedure of Buu-Hoi [25] an...
nontoxic acid addition salts are salts of an amino group formed with inorganic acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid and perchloric acid or with organic acids such as acetic acid, oxalic acid, maleic acid, tartaric acid, citric acid, succinic acid or ...
hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, phosphoric acid, and the like, and organic acids, such as p-toluenesulfonic acid, methanesulfonic acid, oxalic acid, p-bromophenylsulfonic acid, carbonic acid, succinic acid, citric acid, benzoic acid, acetic acid and the like...
citric or acetic acid. The above reactions may be conducted in organic solvents, e.g. alcohol, benzene, provided at least one molecule of water is present. In examples: (1) a mixture of b -, g - and a 1-methyl-a -pyridine aldehydes in 90 per cent aqueous solution is treated with ...
To a solution of nipagin and citric acid in 20 ml of distilled water, carbopol was added in small portions under vigorous stirring, and the solution was left to stand for 10-12 hours. Then the sodium hydroxide in 1 ml of distilled water, the aqueous solution of sorbitol and finally the ...
The organic additives have been demonstrated to increase the catalytic activity on HDS reactions such as thiophene, dibenzothiophene and 4,6-dibenzotiophene [10–13]. The most common organic additives used in the synthesis of CoMo, NiMo and NiW catalysts are citric acid [11,13,14], ...