Triorganotin(IV) derivatives of umbelliferone (7-hydroxycoumarin) and their adducts with 1,10-phenanthroline: synthesis, structural and biological studies

The synthesis, structural characterization and biological studies of new triorganotin(IV) derivatives of the general formula R3Sn(Umb) (where, R = Me, n-Bu and Ph; Umb = umbelliferone anion) and the adducts of the general formula R3Sn(Umb) · phen (where R = Me and Ph; phen = 1,10-phenanthroline) are reported.