There are described water-soluble fiber-reactive dye-stuffs which possess a triazinylamino radical to which is bonded as second substituent an amino group or an N-containing heterocyclic group which, bonded via an arylene, alkylene or aralkyl radical, possesses a fiber-reactive grouping of the vin...
The addition of a COOH-group to the ethylamine residue of tyramine () results in tryptophan. This molecule fails to activate the 5-HT3A receptor (data not shown; three experiments each at 100 μM and 300 μM). Turning tryptophol into indoleacetic acid by making the hydroxyl group acidic ...
1.A method for producing an amino acid selected from the group consisting of L-threonine, L-homoserine, L-alanine, L-isoleucine, and L-valine comprising:A) cultivating a bacterium which has an ability to produce an amino acid in a medium, andb) recovering said amino acid from the medium,...
wherein X is fluorine or methoxy, and R is a hydrogen or methyl group, such that R is hydrogen only when X is fluorine, and their acid addition salts, which are novel, are useful in the treatment of hypertension. They may be prepared from the corresponding 5-substituted indole-3-acetonit...
Yusuke AminoShigeru KawaharaTadashi TakemotoUSUS20070072277 Nov 20, 2006 Mar 29, 2007 Ajinomoto Co., Inc. Such as monatin by exposing typtophan to enzyme which converts tryptophan to 3-indolepyruvic acid which is exposed to enzyme and oxaloacetic/pyruvic acid to form 4-(indol-3-ylmethyl)-4-...
(II), especially obtained by reacting 3-benzoyl-benzoic acid and 3-pyrrole-1-propanol; (k) a 4-hydroxyphenylethylaminocarbonyl-benzophenone monomer of formula (III), especially obtained by reacting 4-(2-aminoethyl)-phenol and 4-benzoyl-benzoic acid; (l) an indole-benzophenone monomer of ...
Where Y=NR2, the ring closure to form indole 3 takes place under aqueous/acid conditions. Where Y=H, the ring closure takes place after N-tosylation by palladium catalysis. The indole 3 is obtained by basic elimination of the N-tosyl group. The ester is reacted, at elevated temperatures...
and R5 is selected from the group consisting of linear and branched C1-C5 alkyl, and C7-C10 aralkyl, optionally substituted with 1, 2 or 3 hetero atoms selected from N, S and O; the method comprising the step of : admixing an 2-amino-3-mercapto propionic acid ester of formula (II)...
Therefore, the hyphen, which represents the peptide bond, eliminates the OH in the 1-carboxyl group of the amino acid (represented here in the conventional non-ionized form) when situated to the right of the symbol, and eliminates the H of the 2-amino group of the amino acid when ...