Synthesis of dipeptide derivatives of 3,4-substituted 7-hydroxycoumarins
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.
Key wordscoumarins amino-acid derivatives dipeptides activated esters synthesis
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