Method for Cleaning 3-Hydroxyamidinophenylalanine Derivatives by the Precepitation and Recrystallization of Salt and an Aromatic Sulfonic Acid
申请人:Greiving Helmut
公开号:US20080039626A1
公开(公告)日:2008-02-14
The present invention relates to the preparation of 3-hydroxyamidino-phenylalanine derivatives in highly pure form which can be used for example as urokinase inhibitors. The present invention further relates to the use of high-purity 3-hydroxyamidinophenylalanine derivatives for preparing 3-amidinophenylalanine derivatives.