OXYBENZOTRIAZOLE FREE PEPTIDE COUPLING REAGENTS FOR N-METHYLATED AMINO-ACIDS

被引:170
|
作者
COSTE, J [1 ]
FREROT, E [1 ]
JOUIN, P [1 ]
CASTRO, B [1 ]
机构
[1] SANOFI CHIM,F-75008 PARIS,FRANCE
关键词
PEPTIDE; COUPLING REAGENT; N-METHYL AMINO ACID; HYDROXYBENZOTRIAZOLE;
D O I
10.1016/0040-4039(91)85015-W
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The main product of N-methylated amino acid coupling, when oxybenzotriazole is present in the reagent (BOP, PyBOP, HBPyU) or as an additive (DCC/HOBt), is the weakly reactive benzotriazolyl ester. On the other hand, the corresponding new halogenated reagents PyBroP, PyCloP and PyClU give very good results and can be recommended.
引用
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页码:1967 / 1970
页数:4
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