Five novelchiral 2D materials with general formula λ-ZrPO4(OH)1-x(RCOO)x(dmso) have been prepared by covalent anchoring of five different chiral carboxylic acids to the sheets of λ-zirconium phosphate (λ-ZrP), namely (S)-(+)-Mandelic acid (MAN), (R)-(−)-α-Methoxyphenylacetic acid (MPA), (S)-(+)-Ibuprofen (IBU), (S)-(+)-6-Methoxy-α-methyl-2-naphthaleneacetic acid (MMN) and (−)-Menthyloxyacetic acid
[EN] ARYL ALKYL CARBOXYLIC ACID SALTS, PROCESS FOR PREPARATION AND DOSAGE FORMS<br/>[FR] SELS D’ACIDE ARYLALKYLCARBOXYLIQUE, PROCÉDÉ POUR LEUR PRÉPARATION ET FORMES GALÉNIQUES
申请人:SHASUN CHEMICALS AND DRUGS LTD
公开号:WO2011001228A1
公开(公告)日:2011-01-06
The invention particularly discloses a process for preparing aryl alkyl carboxylic acid salts by preparing aqueous alkali solution, adding aryl alkyl carboxylic acid to said alkali solution at a temperature ranging from 4° to 121° C for obtaining a clear solution, preferably by heating and/or stirring and concentrating and cooling to obtain aryl alkyl carboxylic acid salt The invention therefore discloses solid oral dosage forms and compositions of aryl alkyl carboxylic acid salts which are free of organic solvent/so. The solid oral dose compositions of aryl alkyl carboxylic acid salts of the invention arc prepared in situ from aryl alkyl carboxylic acids and bases to obtain aryl acid alkyl carboxylic acid sails in crystalline/powder form with or without the use of pharmaceutical excipients.
ARYL ALKYL CARBOXYLIC ACID SALTS, PROCESS FOR PREPARATION AND DOSAGE FORMS
申请人:Chodankar Nandkumar
公开号:US20110144207A1
公开(公告)日:2011-06-16
The invention particularly discloses a process for preparing aryl alkyl carboxylic acid salts by preparing aqueous alkali solution, adding aryl alkyl carboxylic acid to said alkali solution at a temperature ranging from 4° to 121° C. for obtaining a clear solution, preferably by heating and/or stirring and concentrating and cooling to obtain aryl alkyl carboxylic acid salt The invention therefore discloses solid oral dosage forms and compositions of aryl alkyl carboxylic acid salts which are free of organic solvent/so. The solid oral dose compositions of aryl alkyl carboxylic acid salts of the invention are prepared in situ from aryl alkyl carboxylic acids and bases to obtain aryl acid alkyl carboxylic acid sails in crystalline/powder form with or without the use of pharmaceutical excipients.
The use of S(-)sodium 2-(4-isobutylphenyl)propionate (the sodium salt of S(+)-ibuprofen) in pharmaceutical compositions for the treatment of inflammation, pain and pyrexia is described. Preferred compositions comprise S(-)sodium 2-(4-isobutylphenyl)propionate dihydrate. Processes to prepare S(-)sodium 2-(4-isobutyl-phenyl)propionate and its use in a process to prepare S(+) 2-(4-isobutylphenyl)propionic acid of high enantiomeric purity are also described.