and their derivatives are in the research focus.3 In addition, some simple N-acylderivatives of 3-aminocoumarin exhibit an anti-inflammatory activity4 and antimicrobial activity against theGram-positive bacteria.5 Most of the publications for 7-aminocoumarin derivatives presentinteresting photochemical behavior of these compounds6 and many of them can be used asfluorescent markers.7 Furthermore, some platinum complexes of 7-aminocoumarins have beensynthesized and evaluated for their in vitro cytotoxicity against Caco-2T cells.8 Derivatives of 4-aminocoumarin 2 were not studied that much, although some of them possess biological activityas well.9