申请人:——
公开号:US05455363A1
公开(公告)日:1995-10-03
Compounds of formula I are described, ##STR1## wherein n is equal to one or two, R.sub.1 stands for hydrogen or an amino protecting group, R.sub.2 represents hydrogen or a carboxyl protecting group and R.sub.3 4-methyltriphenylmethyl, 4,4'-dimethyltriphenylmethyl, 4,4',4"-trimethyltriphenylmethyl. Furthermore described are compounds of formula I which are reactive and suitable for coupling reactions and are derived from I with R.sub.2 =H by activation of the carboxyl group. The compounds mentioned above can be used as starting materials for the synthesis of peptides. They are more suitable than analogous compounds of formula I, wherein R.sub.3 represents hydrogen or a carbamoyl protecting group used hitherto.
描述了通式I的化合物,##STR1##其中n等于一或二,R1代表氢或氨基保护基团,R2代表氢或羧基保护基团,R3代表4-甲基三苯甲基、4,4'-二甲基三苯甲基、4,4',4"-三甲基三苯甲基。此外,还描述了通式I的化合物,它们是反应性的,适合于偶联反应,并且是由R2=H的I通过激活羧基得到的。上述化合物可用作合成肽的起始原料。它们比通式I的类似化合物更适用,其中R3代表迄今为止使用的氢或碳酰胺保护基团。