Ciba-Geigy Corporation

Peter Wirz

Gerhard Baschang

Albert Hartmann

Bohumir Lucas

Hans Hirt

Cephalin derivatives of the formula I ##STR1## in which R.sup.1 and R.sup.2 each represents, independently of the other, hydrogen or lower alkyl, R.sup.3 represents hydrogen, lower alkoxycarbonyl, carbamoyl or free or protected carboxy, R.sup.4 represents hydrogen or an aliphatic, aromatic, aromatic-aliphatic or cycloaliphatic radical, W represents hydrogen and Z represents a 1,2-dihydroxyethyl, 2-hydroxyethyl or hydroxymethyl group in which at least one hydroxy group is esterified by an aliphatic C.sub.6-30 -carboxylic acid or etherified by an aliphatic C.sub.6-30 -alcohol and in which the other hydroxy group, if present, is free, esterified by an aliphatic C.sub.2-30 -carboxylic acid or etherified by an aliphatic C.sub.1-30 -alcohol, or W represents hydroxymethyl or a hydroxymethyl group that is esterified by an aliphatic C.sub.6-30 -alcohol and Z represents a hydroxymethyl group that is esterified by an aliphatic C.sub.6-30 -carboxylic acid or etherified by an aliphatic C.sub.6-30 -alcohol, and their salts are suitable for the prophylaxis and treatment of virus infections in warm-blooded animals.

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Munchenstein, Switzerland

Peter Wirz