申请人:NATIONAL RESEARCH DEVELOPMENT CORPORATION
公开号:EP0061933A2
公开(公告)日:1982-10-06
Histidine derivatives of formula I are useful inter alia in peptide synthesis.
wherein:-
X represents -CH2OCH2Ar, in which Ar is a phenyl substituent optionally substituted by one or more halogen, alkoxy, alkyl or nitro groups;
Y, which differs from X, represents hydrogen, a protective group capable of inhibiting self coupling during formation of a peptide bond, an amino acid residue, a peptide chain or an antibiotic residue;
E represents OH, OM, M representing an alkali metal or ammonium, OR, R representing an alkyl, aryl, aralkyl or alkaryl group, an amino acid residue, a peptide chain or an antibiotic residue;
the compound I being optionally in the form of a hydrate or acid salt.
In compounds I of especial interest, X represents benzyloxymethyl or p-bromobenzyloxymethyl, Y represents t-butyloxycarbonyl and E represents -OH.
式 I 的组氨酸衍生物特别适用于多肽合成。
其中
X 代表-CH2OCH2Ar,其中 Ar 是可选被一个或多个卤素、烷氧基、烷基或硝基取代的苯基取代基;
与 X 不同的 Y 代表氢、能在肽键形成过程中抑制自偶联的保护基团、氨基酸残基、肽链或抗生素残基;
E代表OH、OM,M代表碱金属或铵,OR、R代表烷基、芳基、芳烷基或烷芳基、氨基酸残基、肽链或抗生素残基;
化合物 I 可选择以水合物或酸盐的形式存在。
在特别感兴趣的化合物 I 中,X 代表苄氧基甲基或对溴苄氧基甲基,Y 代表叔丁氧基羰基,E 代表-OH。