Disclosed herein are peptide derivatives of the formula A-B-D-CH.sub.2 CHCH.sub.2 C(O)R.sup.1 }C(O)-NHCHCR.sup.2 (R.sup.3)COOH}C(O)-E wherein A is a terminal group, for example an optionally substituted phenylalkanoyl, and B is a N-methyl amino acid residue; or A and B together form a saturated or unsaturated alkylaminocarbonyl; D is an amino acid residue; R.sup.1 is alkyl, cycloalkyl, a monosubstituted or a disubstituted amino; R.sup.2 is hydrogen or alkyl and R.sup.3 is alkyl, or R.sup.2 is hydrogen and R.sup.3 is phenylalkyl, or R.sup.2 and R.sup.3 are joined to form a cycloalkyl; and E is a terminal unit, for example, an alkylamino or a monovalent amino acid radical such as NHCH(alkyl)C(O)OH. The derivatives are useful for treating herpes infections.
本公开揭示的是公式A-B-D-CH.sub.2 CHCH.sub.2 C(O)R.sup.1 }C(O)-NHCHCR.sup.2 (R.sup.3)COOH}C(O)-E的肽衍
生物,其中A是末端基团,例如可选择取代的苯基丙酰基,B是N-甲基
氨基酸残基;或者A和B一起形成饱和或不饱和的烷基
氨基甲酰基;D是
氨基酸残基;R.sup.1是烷基,环烷基,单取代或双取代
氨基;R.sup.2是氢或烷基,R.sup.3是烷基,或者R.sup.2是氢而R.sup.3是苯基丙基,或者R.sup.2和R.sup.3连接形成环烷基;E是末端单元,例如烷基
氨基或NHCH(烷基)C(O)OH等单价
氨基酸基团。这些衍
生物可用于治疗疱疹感染。