Preparation and properties of some α-aza-amino-acid derivatives, their possible use in peptide synthesis
作者:C.J. Gray、J.C. Ireson、R.C. Parker
DOI:10.1016/0040-4020(77)80185-3
日期:1977.1
Some derivatives of azaglycine and azaphenylalanine are described. Esters of acetyl- and benzoyl-aza-amino-acids rapidly cyclise to stable oxadiazolones and it is concluded that similar derivatives would be unsuitable for aza-peptide synthesis. t-Butyloxycarbonyl-azaglycine azide was too unreactive for use in peptide synthesis. Benzoyl-azaglycylphenylalanine ethyl ester and acetyl-azaphenylalanylphenylalanine
描述了氮杂甘
氨酸和氮杂苯丙
氨酸的一些衍
生物。乙酰基和苯甲酰基-氮杂
氨基酸的酯迅速环化成稳定的
恶二唑酮,并且得出结论,类似的衍
生物将不适合用于氮杂肽的合成。叔丁氧羰基-氮杂甘
氨酸
叠氮化物对于用于肽合成而言太不活泼。通过将苯甲酰
肼和N-乙酰基-N′-苄基酰
肼分别与2,4-
二硝基苯氧基羰基-苯
丙氨酸乙酯偶合,制得苯甲酰基-氮杂甘
氨酰基苯基
丙氨酸乙酯和乙酰基-氮杂苯丙酰基苯基
丙氨酸乙酯。