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Abstract

The invention relates to substituted 5-benzyl-2,4-diaminopyrimidines of general formula (A) ##STR1## wherein R.sup.1 is C2-C3 alkyl an R.sup.2 is heterocyclyl, phenyl or naphthyl, bonded by one of its C-atoms and R.sup.3 is C2-C6 alkyl, alkenyl, cycloalkyl, cycloalkylalkyl, heterocyclylalkyl, alkylsulfonyl, cycloalkylsulfonyl, cycloalkylalkylsulfamoyl, heterocyclysylfonyl, heterocyclylalkylsulfonyl or dialkylsulfamoyl; wherein alkyl, cycloalkyl and alyenyl can carry up to 6 carbon atoms alone or in compositions and can carry up to 6 ring members heterocyclically, alone, or in compositions and the groups R.sup.2 and R.sup.3 can be substituted; and to acid addition salts of compounds. The invention also relates to a method for producing the above 5-benzyl-2,4-diaminopyrimidines, to the intermediate. products that are produced, to corresponding medicaments and to the use of 5-benzyl-2,4-diaminopyrimidines as medicinal preparations. The products have antibiotic properties and are useful for combating or preventing infectious diseases.

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First Claim