Production method of optically active 2- [ (N-Benzylprolyl) Amino ] Benzophenone compound
申请人:Ajinomoto Co., Inc.
公开号:EP1918276A1
公开(公告)日:2008-05-07
The present invention relates to a production method of optically active 2-[(N-benzylprolyl)amino]-5-chlorobenzophenone (3) or a salt thereof, which includes reacting optically active N-benzylproline (1) with 2-amino-5-chlorobenzophenone (2) in acetonitrile and in the presence of an amide compound and thionyl chloride. According to the method of the present invention, optically active 2-[(N-benzylprolyl)amino]-5-chlorobenzophenone (3) or a salt thereof can be conveniently produced at a high purity and in a high yield:
wherein * shows an asymmetric carbon atom and the configuration of the asymmetric carbon atom is S or R.
本发明涉及光学活性 2-[(N-苄基脯氨酰)氨基]-5-氯二苯甲酮(3)或其盐的生产方法,该方法包括在乙腈中,在酰胺化合物和亚硫酰氯的存在下,使光学活性 N-苄基脯氨酸(1)与 2-氨基-5-氯二苯甲酮(2)反应。根据本发明的方法,光学活性 2-[(N-苄基脯氨酰)氨基]-5-氯二苯甲酮 (3) 或其盐可以方便地以高纯度和高产率生产:
其中 * 表示不对称碳原子,不对称碳原子的构型为 S 或 R。