Patents
Patents for C07C 227 - Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton (10,339)
02/1992
02/26/1992EP0472143A1 Process for the extractive separation of 1-phosphinothricin and l-glutamic acid in aqueous solution
02/26/1992CN1058957A Glycine production method
02/25/1992US5091567 Process for the preparation of 1-aminomethyl-1-cyclohexaneacetic acid
02/25/1992US5091547 Phenylacetic acid derivative and process for making same
02/24/1992CA2049689A1 Process for the extractive separation of l-phosphinothricin and l-glutamic acid in aqueous solution
02/20/1992DE4025962A1 Pantolactone and beta-alanine prodn. from pantothenic acid solns. - esp. mother liquor from calcium D-pantothenate mfr., by treatment with acidic cation exchanger at elevated temp.
02/19/1992EP0471583A1 Process for the preparation of salts of iron amino and hydroxy carboxylic acid complexes
02/19/1992EP0471262A1 Process for the production of substituted 3-amino-acrylesters
02/18/1992US5089653 Having amine-protecting groups, such as diacetanilide or succinimide; palladium catalyst; hydrolyzing to deprotect
02/17/1992CA2046684A1 Process for the preparation of salts of iron amino and hydroxy carboxylic acid complexes
02/12/1992CN1058588A Process for treating amides
02/11/1992US5087745 Reacting G-butyrolactone with hydrogen chloride, esterifying, reacting with trimethylamine, saponifying
02/11/1992US5087732 Glutaric acid derivatives and preparation thereof
02/11/1992CA1295615C 2-amino-3-aroyl- -oxobenzenebutanoic acids and esters
02/05/1992EP0469541A1 Method of crystallizing phenylalanine
02/04/1992CA1295336C2 Synthetic intermediates for preparing substituted di-t-butylphenols
01/1992
01/29/1992CN1058206A Process for producing phenyl propionic derivatives
01/28/1992CA1294961C Aminoalcohols, their preparation process and their applications, particularly in therapeutics
01/15/1992EP0466200A1 Aminocarboxylic acids and derivatives thereof
01/14/1992US5081293 Deesterification of alkyl quaternaryammonium halide alkanoate with base to form the acid salt
01/14/1992US5081289 Disolving in water, precipitation
01/14/1992US5081278 Reductive alkylation with raney nickel catalyst
01/14/1992US5080795 Supported chiral liquid membrane for the separation of enantiomers
01/14/1992CA1294288C2 Phenyl substituted aminodicarboxylates
01/14/1992CA1294285C Optical indicator chalcogen compounds and methods for their preparation and use
01/08/1992EP0464943A1 Process for treating amides
01/07/1992US5079373 Blocking agents useful in the synthesis of polypeptides
01/07/1992US5078886 Separation of mixtures by two-phase systems
01/07/1992CA2020648A1 Aqueous alkylation process
01/07/1992CA1293965C Primary hindered aminoacids for promoted acid gas scrubbing process
01/02/1992EP0463969A1 New compounds of 4-aminobutyric acid, process for their preparation and pharmaceutical preparations containing them
01/02/1992EP0463644A2 Use of chelate complexes
01/02/1992EP0463466A2 Process for the preparation of high purity 5-aminosalicylic acid
12/1991
12/31/1991CA1293840C Renin inhibiting polypeptide analogs and intermediates
12/28/1991CA2045445A1 New compounds of 4-amino butyric acid, the process for their preparation and the pharmaceuticals containing them
12/25/1991CN1015174B Mfg. process for l-phenylglycine
12/25/1991CN1015173B Process for the recovery of glutamic acid from isoelectric point crystallizing mother liquor
12/24/1991US5075498 Process for preparing solid betaines
12/24/1991CA1293509C Method for the preparation of anilinofumarate
12/17/1991CA1293253C Antioestrogenic phenol derivatives
12/11/1991CN1015044B Preparation of 2-(2-nitrobenzoyl)-1, 3-cyclohexadione compounds, and uses thereof
12/10/1991US5071560 Process for purifying phenylalanine
12/10/1991CA1292995C Lubricating oil compositions containing bis-mannich base deposit inhibitors and a process for their preparation
12/04/1991EP0459803A1 Method for purifying glycine
11/1991
11/27/1991EP0261191B1 Industrial process for the preparation of amino acids by hydrolysis of proteins in acid medium
11/27/1991CN1056490A New elution technology in ion-exchange process for recovering glutamic acid
11/26/1991US5068416 Preparation of β-alaninediacetic acid or its alkali metal or ammonium salts
11/26/1991US5068413 Multistage process to form 1-(aminomethyl)-cyclohexanecarboxylic acid from 1-cyanocycloalkylmalonic acid derivatives
11/26/1991US5068398 Preparation of 6-aminocaproic esters
11/26/1991US5068384 Phosphate salts of AB-polybenzoxazole monomer
11/26/1991CA1292478C Process for l-dopa
11/24/1991WO1991017816A1 Supported chiral liquid membrane for the separation of enantiomers
11/24/1991CA2083388A1 Support chiral liquid membrane for separation of enantiomers
11/21/1991EP0457386A2 Process for the preparation of a secondary amine and catalysts therefor
11/21/1991EP0457129A2 Process for the preparation of amine-terminated compounds
11/21/1991EP0457090A2 Process for the preparation of 3-amino-2 (het)aroyl-acrylic acid derivatives
11/21/1991EP0456838A1 Process for producing glycine
11/19/1991US5066824 Polyhydroxy compound or polymer esterified with acetoacetic acid, then reacted with amine
11/19/1991US5066820 Oxidation of corresponding haloacetyl compound to the acid, intermediates for dyes, high purity
11/19/1991US5066801 Preparation of sulfonic acid esters
11/19/1991US5066675 Alkynyl substituent, agricultural use
11/19/1991CA1292239C Cycloalkyl-substituted 4-aminophenyl halo derivatives and process for their preparation
11/19/1991CA1292236C Process for preparing n-alkylated amino acids and esters thereof
11/16/1991CA2039941A1 Process for the preparation of amine-terminated compounds
11/15/1991CA2042185A1 Process for the preparation of a secondary amine
11/12/1991US5064761 Process for the manufacture of 4-acylamino-3-hydroxybutyric acid esters
11/05/1991US5062884 N-substituted 3,4,5,6-tetrahydrophthalimides and their intermediates
10/1991
10/30/1991EP0453841A2 Process for the preparation of esters of 1-alcoxyhexatriene-2-carboxylic acid
10/30/1991CN1055733A Preparation of beta--alkylamino propionate
10/30/1991CN1014516B Phenyl ethers
10/29/1991US5061816 With help of clathrate compound
10/29/1991US5061722 Hypotensive agents; e.g. ramipril
10/17/1991WO1991015463A1 PROCESS FOR PREPARING EQUIMOLAR SALTS OF A DICARBOXYLIC α-AMINO ACID AND A DIVALENT METAL, MAGNESIUM ASPARTATE SALT OBTAINED BY SAID PROCESS AND ITS APPLICATIONS
10/16/1991EP0452000A2 Preparation of optically active norbornyl amine derivatives
10/09/1991EP0450684A1 A process for the preparation of D-(-)-4-hydroxyphenylglycine and L-(+)-4-hydroxyphenylglycine, starting from D.L.-4-hydroxyphenylglycine
10/09/1991EP0450356A1 Preparation of alpha-aminoacid 2,2,2-trifluoroethyl esters
10/08/1991US5055588 Process for preparing N-substituted amino acid esters
10/01/1991US5053543 Synthesis of 2-aminobenzophenones
10/01/1991US5053519 Hypotensive agents; diuretics; vasodilation
10/01/1991CA1289971C Explosive compound
10/01/1991CA1289963C All-cis-1,3,5-triamino-2,4,6-cyclohexanetriol derivatives, their use, processes for their preparation and pharmaceutical preparations containing them
10/01/1991CA1289951C Complexes containing optically active sugar ligands, a process for theirpreparation and their use
09/1991
09/24/1991US5051526 Reagents for solid phase synthesis of polypeptides
09/24/1991US5051446 Cardiovascular disorders
09/24/1991CA1289568C Process for production of amino compounds
09/19/1991WO1991013861A1 Method for preparing n-protected (2s,3s)-3-ethylaspartic acid dialkyl esters
09/17/1991US5049657 Process for hydrolysis of peptide or protein
09/17/1991US5049283 Method for the recovery of aqueous solutions of free, neutral α-amino acids from aqueous solutions of their alkali-metal salts
09/17/1991US5049279 Selective extraction of amino acids
09/17/1991US5049250 Electrodialytic treatment of aqueous solutions containing amino acids
09/11/1991EP0445796A2 Derivatives of acetic acid
09/10/1991CA2037153A1 Acetic acid derivatives
09/05/1991WO1991013053A1 DERIVATIVE OF β-PHENYLISOSERINE, PREPARATION AND UTILISATION THEREOF
09/05/1991WO1991013049A1 Chemical alteration of a hydrophobic substance in polymeric microregions
08/1991
08/21/1991EP0442754A2 Reagents and methods for stereospecific fluoromethylation
08/20/1991US5041672 Process for preparing p-phenylenediamines
08/20/1991US5041643 Process for the production of R(+)-aminocarnitine and S(-)-aminocarnitine
08/20/1991US5041637 Process for the synthesis of optically active aminoacids
08/20/1991US5041629 Chemical intermediates for dyes
08/20/1991US5041612 1-methylamino-cyclopropane-1-carboxylic acid derivatives
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