four series of diethylaminoalkoxyderivatives of coumarin ( at the positions 4 and 7 ) and furocoumarin ( at the positions 5 and 8 ) have been prepared , in order to study their complexing capacity with dna , these compounds having a double possibility of interaction , that is intercalation of the aromatic moiety between two base pairs and formation of an electrostatic bond between their terminal amino group and a phosphoric group of dna .
C0012854
dna
C0000702
a