Bio-mega/boehringer Ingelheim Research Inc.

Robert De/ Ziel

Pierre Louis Beaulieu

Neil Moss

Julian Adams

John DiMaio

Pierre Lavalle/ E

Louis Grenier

Disclosed herein are pentapeptide derivatives of the formula X--NR.sup.1 --CH(R.sup.2)--C(W)--NH--CR.sup.3 (R.sup.4)--C(W.sup.2)--NR.sup.5 --CH CH.sub.2 C(O)--Y!--C(W.sup.3)--NH--CR.sup.6 -- CR.sup.7 (R.sup.8)--COOH!--C(W.sup.4)--NH--CR.sup.9 (R.sup.10)--Z wherein X is a terminal group, for example, alkanoyl or phenylalkanoyl radicals, R.sup.1 is hydrogen, alkyl or phenylalkyl, R.sup.2, R.sup.4 and R.sup.10 are selected from amino acid or derived amino acid residues, R.sup.3, R.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 are hydrogen or alkyl or R.sup.7 and R.sup.8 are joined to form a cycloalkyl, W.sup.1, W.sup.2, W.sup.3 and W.sup.4 are oxo or thioxo, Y is, for example, an alkoxy or a mono or disubstituted amino, and Z is a terminal group, for example, COOH or CH.sub.2 OH. The derivatives are useful for treating herpes infections.

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Ville Mont-Royal, Canada

Robert De/ Ziel