申请人:Takeda Chemical Industries, Ltd.
公开号:US04487726A1
公开(公告)日:1984-12-11
A guanidino group in an amino acid or a peptide can be protected with a specific group, i.e. pentamethylbenzenesulfonyl, 2,4,6-trimethoxybenzenesulfonyl, 4-methoxy-2,3,5,6-tetramethylbenzenesulfonyl, 4-methoxy-2,6-dimethylbenzenesulfonyl or 4-methoxy-2,3,6-trimethylbenzenesulfonyl, and said group may easily be removed without affecting the amino acid or the peptide to be derived from the protected amino acid or peptide. Thus, the present invention is useful in the synthesis of peptides containing the guanidino group.
氨基酸或多肽中的鸟氨酸基团可以用特定的保护基(如五甲基苯磺酰基、2,4,6-三甲氧基苯磺酰基、4-甲氧基-2,3,5,6-四甲基苯磺酰基、4-甲氧基-2,6-二甲基苯磺酰基或4-甲氧基-2,3,6-三甲基苯磺酰基)进行保护,而且该保护基可以轻松去除,不会影响从保护的氨基酸或多肽中派生的氨基酸或多肽。因此,本发明在合成含有鸟氨酸基团的多肽方面非常有用。