首页>
外国专利>
Method for Producing (R)-and (S)-4-(1-Ammoniumethyl)Benzoic Acid Methylester-Sulphate from Racemic 4-(1-Aminoethyl)Benzoic Acid Methylester by Lipase Catalysed Enantoselective Acylation and Subsequent Precipitation with Sulphuric Acid
Method for Producing (R)-and (S)-4-(1-Ammoniumethyl)Benzoic Acid Methylester-Sulphate from Racemic 4-(1-Aminoethyl)Benzoic Acid Methylester by Lipase Catalysed Enantoselective Acylation and Subsequent Precipitation with Sulphuric Acid
A method for preparing optically active methyl 4-(1-ammoniumethyl)benzoate sulfate by reacting racemic methyl 4-(1-aminoethyl)benzoate with an acylating agent in the presence of a lipase to give methyl 4-(1-aminoethyl)benzoate and subsequently precipitating methyl 4-(1-ammoniumethyl)benzoate sulfate by adding sulfuric acid.
展开▼