Class 562/570 - Threonine per se or salt thereof

Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: The compound which is threonine (see structure below)
No. of patents: 34
Last issue date: 05/29/2012

Number	Title	Issue Date
8188311	L-threonine derivatives of high therapeutic index The present invention is directed to a derivative comprised of an L-Threonine bonded to a medicament or drug having a hydroxy, amino, carboxy or acylating derivative thereon. The derivative has the same utility as the drug from which it is made, but it has enhanced ...	05/29/2012
7589233	L-Threonine derivatives of high therapeutic index The present invention is directed to a derivative comprised of an L-Threonine bonded to a medicament or drug having a hydroxy, amino, carboxy or acylating derivative thereon. The derivative has the same utility as the drug from which it is made, but it has enhanced ...	09/15/2009
6992067	Diphenylazetidinones, process for their preparation, medicaments comprising these compounds and their use Compounds of the formula I, in which R1, R2, R3, R4, R5, and R6 have the meanings given in the description, and their physiologically acceptable salts. The compounds are suitable for use, for example, as hypolipidemics....	01/31/2006
6696611	Chemical methods The present invention provides a method for enantioselectively reducing a prochiral carbon centered radical having one or more electron donator groups attached directly to the central prochiral carbon atom of the radical, and/or attached to a carbon atom ...	02/24/2004
6673942	Resolution of DL-racemic mixtures The present invention relates to a process for the resolution of DL-racemic mixtures of compounds which crystalize in the form of a conglumerate. Both, the D and L-enantiomers are obtained according to the invention in a industrially feasable process by a...	01/06/2004
6462173	Inhibitors of phosphoserine and phosphothreonine-proline-specific isomerases Inhibitors of phosphoserine- or posphothreonine-specific peptidyl prolyl isomerases are described. Such inhibitors include molecules that mimic the structure and conformation of the pSer/pThr-Pro peptide moiety of the isomerase substrate when the substrat...	10/08/2002
6417395	Process for preparing methionine The invention concerns a method for preparing methionine aminoamide. The invention also concerns the preparation of methionine without co-production of salts, from an aqueous solution containing essentially methionine aminonitrile by producing during a fi...	07/09/2002
6111084	Fuopeptide mimetics Bioactive fucopeptides and libraries of fucopeptides having advanced activities against P-selectin as sialyl Lewis X mimetics with IC50 values in the low mM range are synthesized by solid phase synthesis using para-acyloxymethylenzlidene acetal...	08/29/2000
5981564	Water-soluble derivatives of paclitaxel, method for producing same and uses thereof The invention relates to new paclitaxel derivatives showing an increased solubility in water. More particularly, the invention relates to glutarylpaclitaxel, glutarylpaclitaxel 6-aminohexanol glucuronide and to different amino acid derivatives of the glut...	11/09/1999
5777142	Unsaturated hydroxycarboxylic compounds useful as intermediates for preparing lubricant and fuel additives Compositions comprising unsaturated hydroxycarboxylic compounds, a process for reacting olefinic compounds with carboxylic reagents and products prepared by the process. The compositions containing the hydroxycarboxylic compounds and the products of the p...	07/07/1998
5773284	Phenylserine amides and the preparation of phenylserines/phenylserine amides Process for the preparation of a threo-phenylserine amide of the general formula 2 in which glycine amide is contacted with the corresponding substituted benzaldehyde of formula 3 in an excess relative to the amount of glycine amide, this taking place at ...	06/30/1998
5631031	Water-insoluble amino acid salt Disclosed are water-insoluble, calcium or magnesium salts of alpha amino acids and a process for their preparation. The process comprises the steps of reacting an alpha-amino-protected alkyl ester of an amino acid with a metal base, thereby forming a wate...	05/20/1997
5536815	Cyclopropyl based O- and N- and S-protecting groups The present invention is directed to the use of a cyclopropylmethyl derivative as a protecting group for compounds containing an amino group, carboxy group, amido group, mercapto group or hydroxy group and to the compounds formed having the cyclopropylmet...	07/16/1996
5194625	Process for production of alpha-keto acid/amino acid salt compounds A compound of the formula: AN/xS wherein A represents an amino acid, N represents an ଱-keto acid, S represents a lower alcohol or acetone; and x ranges from 0.1 to 3....	03/16/1993
5026909	Method for preparing biologically active organic compound labelled with hydrogen isotope A method according to the invention comprises mixing the starting biologically active organic compound, an inorganic vehicle and a catalyst in the form of a platinum-group metal, followed by reacting the resulting mixture with an isotope of hydrogen at a ...	06/25/1991
4942248	Tertiary-alkyl esters of 1H-benzotriazole-1-carboxylic acids Tertiary-butyl and tertiary-amyl esters of 1H-benzotriazole-1-carboxylic acids are useful blocking agents for blocking the amino or imino groups of amino acids. The six-membered ring of the blocking agent may be unsubstituted or substituted with one or mo...	07/17/1990
4912228	Process of extraction of amino acids from aqueous solutions thereof An improvement in the process of extraction of amino acids from aqueous solutions in which the amino acids are extracted with quaternary ammonium extractants. A pretreatment of the amino acid containing aqueous solution with a tertiary amine prior to extr...	03/27/1990
4906773	Process for preparing optically active threonine A process for preparing optically active threonine is disclosed, which comprises asymmetrically hydrogenating a 2-N-acylaminoacetoacetic ester represented by formula (I): ##STR1## wherein R1 represents a lower alkyl group, a phenyl group, ...	03/06/1990
4886888	Extraction of amino an acid from aqueous mixtures thereof Amino acids can be purpified and/or concentrated by extracting aqueous mixtures such as fermentation broths by contacting an aqueous mixture containing amino acids with an organic solution containing a water insoluble extractant selected from the group co...	12/12/1989
4886889	Process for recovery of an amino acid from aqueous mixtures thereof Disclosed is a process for recovery of amino acids from aqueous mixtures. In particular, it relates to a treatment of said amino acid containing aqueous mixture prior to extraction of the amino acid with a water immiscible organic solution containing a wa...	12/12/1989
4870208	Asymmetric hydrogenolysis of epoxides A process of preparing chiral alcohols by the asymmetric catalytic hydrogenolysis of epoxides using rhodium or ruthenium catalysts containing chiral phosphine ligands....	09/26/1989
4822890	Method for the production of amino terminus protected naturally occurring amino acids A method for the production of substantially 100% pure N଱-urethane protected amino acids is disclosed. This method eliminates the formation of di-peptide and tri-peptide contaminants. Reaction of blocking reagents at the carboxylate site on a protec...	04/18/1989
4661606	Extraction of amino acids from aqueous mixtures and quaternary ammonium salt intermediates produced therein Amino acids can be purified and/or concentrated by extracting aqueous mixtures such as fermentation broths by contacting an aqueous mixture containing amino acids with an organic solution containing a water insoluble extractant....	04/28/1987
4602096	Process for the racemization of N-acetyl-D,L-଱-aminocarboxylic acids N-acetyl-D(L)-଱-aminocarboxylic acids are thermally racemized by melting, adding a small amount of acetic anhydride to the melt and heating to a temperature between the melting temperature and about 210° C. and subsequently quenching the melt with ...	07/22/1986
4540792	Process for the preparation of a free L ଱-amino acid This invention relates to a process for the preparation of free L ଱-amino acids by the complete conversion of their D antipodes taken individually or possibly in racemic mixtures. The process according to the present invention is characterized in that th...	09/10/1985
4519955	Method for optical resolution of DL-଱-amino acid or (&#b1;)-଱-phenylethanesulfonic acid ଱-(S)-amino acid.଱-phenylethanesulfonate compounds and methods of optical resolution of ଱-amino acids and ଱-phenylethanesulfonic acids are described....	05/28/1985
4501919	Process for the production of serine derivatives Serine derivatives are synthesized by the condensation of an alkali metal salt of a glycine derivative and a carbonyl compound in the presence of a phase transfer catalyst....	02/26/1985
4486600	Process for the production of ଲ-hydroxy-଱-aminocarboxylic acids ଲ-hydroxy-଱-aminocarboxylic acids of the formula: ##STR1## where R1 and R2 are hydrogen or an alkyl group having 1 to 10 carbon atoms are produced by hydrogenating the correspondingly substituted cyanohydrin in a wat...	12/04/1984
4459423	Process for producing ଱-amino acids A process for producing efficiently and economically without using strong acids nor strong bases, ଱-amino acids from ଱-amino acid amides by hydrolyzing ଱-amino acid amides in an aqueous medium in the presence of ammonia. If necessary, th...	07/10/1984
4296127	Mixed salts of essential or semi-essential amino acids and nitrogen-free analogs thereof Novel compounds are prepared by reacting essential or semi-essential amino acids with nitrogen-free analogues thereof, particularly alpha-keto and/or alpha-hydroxy analogues. The mixed salt reaction products are precursors of essential and semi-essential ...	10/20/1981
4243814	Process for the chemical catalytic hydrolysis of an ଱-aminonitrile or of one of the salts thereof A process for the chemical catalytic hydrolysis of an ଱-aminonitrile or of one of the salts thereof, characterized in that an aqueous solution containing at least one carbonyl derivative is reacted with the said ଱-amine nitrile or with one of ...	01/06/1981
4224239	Process for preparing optically active amino acid or mandelic acid Two optically active amino acid-mandelic acid complexes are obtained by interacting in a solvent under pH conditions of 1.0-4.0 an amino acid expressed by a general formula ##STR1## (in which R represents a methyl group, an ethyl group or a methylthi...	09/23/1980
4061650	5-Trihalogenomethyl-4,5-dihyro-oxazole-4-carboxylic acid esters Alkyl (or aralkyl) ଱-isocyanoacetate is condensed with a trihalogenoacetic aldehyde or its hydrate in the presence of an amine to give trans-4-alkoxycarbonyl(or aralkyloxycarbonyl)-5-trihalogenomethyl-2-oxazoline. The oxazoline compound is hydr...	12/06/1977
3985722	Process for preparing N-higher aliphatic acyl derivatives of amino acids, peptides or proteins A mixed acid anhydride consisting of higher fatty acid having 6 to 22 carbon atoms and sulfuric anhydride is reacted with amino acids, peptides or proteins in the presence of a base to form N-higher aliphatic acyl derivatives of amino acids, peptides or p...	10/12/1976

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Class 562/570 - Threonine per se or salt thereof