New methods in peptide synthesis. Part III. Protection of carboxyl group
作者:G. C. Stelakatos、A. Paganou、L. Zervas
DOI:10.1039/j39660001191
日期:——
For the protection of the carboxyl group of amino-acids during peptide synthesis, the acid-labile diphenylmethyl ester group was used. N-Trityl-(i.e., triphenylmethyl), N-formyl-, or N-o-nitrophenylsulphenyl-amino-acid diphenylmethyl esters were converted by known methods into the corresponding ester hydrochlorides. The deblocking of the carboxyl group was accomplished either by the action of dilute
为了在肽合成过程中保护氨基酸的羧基,使用酸不稳定的二苯基甲基酯基。Ñ三苯甲基(即,三苯基甲基),Ñ甲酰基,或ñ - ö -nitrophenylsulphenyl个氨基酸的二苯基甲基酯是由公知的方法转化成相应的盐酸盐酯。羧基的解封是通过氯化氢或溴化氢在硝基甲烷中的稀溶液的作用,通过三氟乙酸或通过催化氢解作用来完成的。