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WO/2007/020973A1 |
A method of recovering carnitine in the state of being low in the content of cations, such as calcium, from milk or other dairy products. There is provided a method of recovering carnitine characterized by including feeding an ultrafiltr...
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WO/2007/013698A1 |
Disclosed is a process for producing an asymmetric mono-substituted alkylated compound of an α-amino acid which is represented by a specific formula by using an aldimine-type Schiff base. In the process, the alkylation of an aldimine-ty...
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WO/2007/009944A1 |
The invention relates to a method for preparing tritylated compounds in which protic functional groups are protected with the triphenylmethyl group, method based on the homogeneous catalysis exercised by salts or metal complexes in organ...
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WO/2007/007791A1 |
A process for the decomposition and recovery of isocyanate compounds which comprises introducing continuously an isocyanate compound having at least one isocyanate group or at least one group derived from an isocyanate group in a molten ...
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WO/2007/004639A1 |
Disclosed is a process for producing an erythro-β-amino alcohol compound, which is an optically active intermediate useful in the production of a pharmaceutical, in a simple manner and with good efficiency. An enantiometric mixture of a...
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WO/2007/005967A2 |
Provided is a process for preparing valsartan and precursors thereof.
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WO/2006/136087A1 |
3-isobutyl-glutaryl imine i.e.4-isobutyl-piperidine-2,6-dione useful as intermediate in preparation of pregabalin useful for treating epilepsy and neuropathic pain and its preparation method. The method includes 3-isobutyl-glutaric acid ...
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WO/2006/133346A2 |
A ferric and acid complex includes the reaction product of a chelant, iron oxide, a base, and a reaction promoter. The chelant has at least one carboxylic acid functionality. The reaction promoter has an Fe3+ ion. A process for preparing...
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WO/2006/129781A1 |
A process for producing a 11-alkylidene dibenz[b,e]oxepin derivative represented by the general formula (V) or a salt thereof, the process comprising the steps of: (i) haloganating a compound represented by the general formula (I) to yie...
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WO/2006/125397A1 |
Nonsteroic androgen acceptor regulator compounds of the general formula (I), pharmaceutically acceptable salts thereof, preparation process and pharmaceutically compositions containing the said compounds are disclosed. Such compounds of ...
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WO/2006/125030A2 |
Method for the preparation of asymmetric alkynylated -amino esters of the formula (III) wherein R1 and R2 are independently optionally substituted alkyl, cycloalkyl, aryl or heteroaryl, and Y is hydrogen or a nitrogen protecting group.
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WO/2006/123909A1 |
Disclosed relates to a process for preparing N (5)- ethylglutamines economically without a specific purification process via a simplified and safe process, in which glutamic acid derivatives, represented by formula 1, protected by phthal...
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WO/2006/122259A1 |
The invention relates to pure (R)-CMH and to the optical resolution of CMH- racemate, a key intermediate in the synthesis of (S)-Pregabalin. The invention also relates to the process for optically purifying (R)-CMH and to the process for...
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WO/2006/122258A1 |
A process for the preparation of Pregabalin comprising: a) combining an alkali hydroxide and water, b) adding CMH at a temperature of about O° C to about 40° C; c) adding bromine, in a drop-wise manner, at a temperature of about O° C ...
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WO/2006/120129A1 |
The invention relates to a method for producing a light-coloured methylglycine-N,N-diethanoic acid trialkali metal salt with a low by-product content, by the alkaline hydrolysis of methylglycine diacetonitrile, said method comprises step...
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WO2006051000A9 |
The invention relates to a method for preparing diastereoisomers of 4-hydroxy isoleucine of formula (A): CO2H- CH(NH2)- CH(CH3)-CH(OH)-CH3 which comprises the following steps: - deprotection of amine of Formula (B) - reduction and subseq...
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WO/2006/108663A1 |
The invention relates to a method for recovering a basic amino acid from the fermentation liquor of a micro-organism strain that produces the basic amino acid. The method comprises the following steps: a) isolation of the micro-organisms...
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WO/2006/108662A1 |
The invention relates to a method for recovering a basic amino acid from the fermentation liquor of a micro-organism strain that produces the basic amino acid. According to said method: a) the fermentation liquor is acidified with an aci...
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WO/2006/110783A2 |
The invention encompasses processes for the synthesis of (S)-Pregabalin, (S)-(+)-3-(aminomethl)-5-methlhexanoic acid.
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WO/2006/104226A1 |
A chiral phase-transfer catalyst represented by the following formula (I). (I) The compound (I) can be produced by reacting 1,1'-biphenyl 2,2'-dimethylenebromide derivative which can be produced through a relatively small number of steps...
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WO/2006/100568A1 |
Disclosed are materials and methods for preparing optically active β-amino acids, which bind to the alpha-2-delta subunit of a calcium channel and are useful for treating pain, fibromyalgia, and a variety of psychiatric and sleep disord...
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WO/2006/092884A1 |
This invention provides a novel cyclic phosphoric acid compound and an asymmetric synthesis method using the cyclic phosphoric acid compound as a catalyst. This invention is based on finding that a novel cyclic phosphoric acid compound r...
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WO/2006/090208A1 |
The invention provides a process for preparing gabapentin and its intermediates. The process generally involves treating gabapentin lactam with an aqueous solution of hydrobromic acid to yield gabapentin hydrobromide salt as an intermedi...
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WO2006071995A9 |
The present invention provides a prodrug of propofol and crystalline forms thereof, methods of making the propofol prodrug and crystalline forms thereof, pharmaceutical compositions of the propofol prodrug and crystalline forms thereof, ...
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WO/2006/081151A1 |
The present invention relates to a process for the efficient preparation of enantiomerically enriched beta amino acid derivatives which are useful in the asymmetric synthesis of biologically active molecules. The process comprises an ena...
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WO/2006/075651A1 |
[PROBLEMS] To provide a process for efficiently producing the anti isomer of an optically active β-hydroxy-&agr -aminocarboxylic acid derivative useful as an intermediate for medicines/agricultural chemicals. [MEANS FOR SOLVING PROBLEMS...
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WO/2006/069798A1 |
The invention relates to a process for the preparation of a chiral amine, whereby a ketone or aldehyde is contacted with an enantiomerically enriched phenylglycine amide to give an imine, whereby the imine is subsequently contacted with ...
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WO/2006/070072A1 |
The invention relates to a method for regenerating aqueous liquids containing trimethyl glycine and glycol, wherein said aqueous liquid containing trimethyl glycine and glycol is filtered and the filtrate a) is spray dried and optionally...
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WO/2006/069114A2 |
A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. Th...
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WO/2006/064041A1 |
The present invention relates to a process for the purification of gabapentin. The process relates to the addition of hydrochloric acid to an aqueous solution or suspension of gabapentin, before, during or after the concentration step of...
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WO/2006/064340A2 |
This invention relates to a process for the preparation of enantiomerically enriched N-acyl ß-aminoaldehydes. In particular it relates to asymmetric hydrogenation of N-acyl enamides.
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WO/2006/054366A1 |
A method of synthesizing an optically active amino acid and a derivative thereof in a two-phase system consisting of a water-immiscible medium and an alkaline aqueous solution using as a phase-transfer catalyst an optically active quater...
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WO/2006/051940A1 |
A process for producing L-ornithine crystals which comprises: (i) a step in which L-ornithine, a salt thereof, or a composition or solution containing either of these is treated with a cation-exchange resin to adsorb the L-ornithine onto...
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WO/2006/047703A2 |
A process for producing N-carboxyanhydrides is disclosed. The process produces N-carboxyanhydrides as a product and HCl as a by-product. The HCl by-product is purged from the reaction mixture by passing a purge gas through the reaction m...
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WO/2006/038872A1 |
A new process for the synthesis of a compound of formula [Chemical formula should be inserted here. Please see paper copy] wherein A represents O or N; R¿1? represents a C?1#191-C?6#191 alkyl; R¿2? and R¿3? each independently represen...
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WO/2006/037950A1 |
The invention provides a method for the synthesis of an 18F-labelled product comprising deprotected of a protected 18F-labelled compound using a deprotection agent comprising a weak acid and wherein neutralisation and buffering of the de...
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WO/2006/038698A1 |
A process for the production of optically active (S)- or (R) -β-amino acids represented by the general formula (II): (II) [wherein R is optionally substituted, alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aryl, or heteroaryl; and * rep...
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WO/2006/035080A1 |
The invention relates to a method of obtaining substantially-non-salified cyclic amino acids having formula (I), wherein n is a whole number selected from 2, 3 and 4 and, in particular, gabapentin (compound having formula (I) with n = 3)...
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WO/2006/030208A1 |
The present invention relates to enantiopure, non-proteinogenic &agr -amino acids, and methods for the synthesis thereof, that are useful as, or in the synthesis of, pharmaceutical, nutraceutical or agricultural products.
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WO/2006/028068A1 |
Methods which yield L-carnitine having a large particle diameter and hence having reduced hygroscopicity and by which L-carnitine can be purified to a high purity. One of the methods for purifying L-carnitine is characterized by dissolvi...
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WO/2006/024436A1 |
The present invention relates to a process for the preparation of a 4,5-diamino shikimic acid derivative of formula (I) and pharmaceutically acceptable addition salts thereof wherein R1, R1’ are independent of each other H or alkyl, R2...
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WO/2006/016510A1 |
Disclosed is a method for producing 2-amino-5-iodobenzoic acid wherein 2-aminobenzoic acid (A) and a molecular iodine (B) are reacted in a liquid phase in the presence of an oxidant. Hydrogen peroxide is preferably used as the oxidant. T...
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WO/2006/017455A2 |
This invention describes a reductive amination process whereby perfluorinated ketones or ketals are combined with &agr -aminoesters under basic conditions to form metal carboxylates. Diastereoselective reductions of the metal carboxylate...
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WO/2006/009451A1 |
The invention relates to UV-absorbing polymers, said UV-absorbing polymer comprising a synthetic amine rich polymer to which is covalently linked to an aminobutadiene represented y the general formula (I) wherein the UV-absorbing polymer...
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WO/2006/008170A1 |
The invention relates to a novel compound (2R, 3R)-2 -hydroxy-3amino-3-aryl-propionamide according to formula (1), wherein aryl A represents a substituted or unsubstituted aromatic ring, and to a process for the preparation of said com...
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WO/2006/008612A2 |
Disclosed are materials and methods for preparing optically active ß-amino acids of Formula (1), which bind to the alpha-2-delta (&agr 2&dgr ) subunit of a calcium channel.
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WO/2006/006183A2 |
An improved process for the preparation of N-[(S)-ethoxy carbonyl-l-butyl]-(S)-alanine by simple hydrogen gas bubbling in the reaction mixture at atmospheric pressure or in slight negative pressure in presence of palladium carbon at low ...
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WO/2006/003671A1 |
A process for resolution of methyl 2-substituted phenylglycine esters and/or acids of the formula I by asymmetric transformation of diastereomeric salts formula (I) comprising resolution of racemic 2-substituted phenylglycine esters and/...
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WO/2006/002972A1 |
The present invention relates to a new process for the preparation of gabapentin by the neutralization of an acid addition salt of gabapentin in an organic solvent or a mixture of organic solvents with a quaternary ammonium hydroxide.
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WO/2006/000904A2 |
Materials and methods for preparing (S)-(+)-3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed.
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