3-Acety 1-4-hydroxycoumarin 1 and 3-acety 1-4-hydroxy-6-bromocoumarin 1,2 were condensed with a-aminooxy carboxylic acids3 and some a-aminoacids. We expect the obtained derivatives o.f oximes and azomethines to show bactericide activity, characteristic for compounds containing the aminooxy group3, also and for azomethines o.f 4-hydroxycoumarins4 • Some oximes of aminooxy acetic acid were already prepared with the same purpose
