EP0461546A3 — Antiherpes peptide derivatives having a 1,4-dioxo-c4 n-terminus

USPTO Abstract

Disclosed herein are peptide derivatives of the formula R<1>NH-CO-Q-C(O)-NR<2>-CH[CH2C(O)-Y]-C(O)-NH-CH[CR<3>(R<4>)-COOH]-C(W) -NH-CHR<5>-Z wherein R<1> is an optionally substituted alkyl or optionally substituted phenylalkyl, R<2> is hydrogen or alkyl, R<3> and R<4> each independently is hydrogen or alkyl, or R<3> and R<4> are joined to form a cycloalkyl, R<5> is alkyl, cycloalkyl or (cycloalkyl)alkyl, Q is a divalent radical, for example, -CH2CH2-, -CH=CH- or 1,2-cyclohexanediyl, which serves as a two carbon spacer, W is oxo or thioxo, Y is, for example, an alkoxy or a monosubstituted or disubstituted amino, and Z is a terminal unit, for example, hydrogen, COOH or CH2OH. The derivatives are useful for treating herpes infections.