Synthesis of dipeptide derivatives of 3,4-substituted 7-hydroxycoumarins

Abstract

Coumarins modified with dipeptides were prepared by condensation of N-hydroxysuccinimide esters of 2-(3,4,8-substituted-2-oxo-2H-7-chromenyloxy)-and 2-(3,4-substituted-7-methyl-2-oxo-2H-5-chromenyloxy)acetic and-propionic acids with amino acids and dipeptides. © 2008 Springer Science+Business Media, Inc.