Synthesis and biological activity of some new 3-and 6-substituted coumarin amino acid derivatives. Part I
作者:A. M. El-Naggar、F. S. M. Ahmed、A. M. Abd El-Salam、M. A. Radi、M. S. A. Latif
DOI:10.1002/jhet.5570180627
日期:1981.10
synthesis of 6-nitrocouarrain-3-CO-amino acids and their corresponding methyl esters (II-XVII) and some dipeptide methyl esters (XVIII-XXVI) are described. 6-(N-Tosyl- or N-phthalylaminoacyl)aminocoumarin-3-carboxylic acid methyl esters (XXXIV-XL) and 3-(N-phthalyl- or N-tosylaminoacytyaminocoumarins (XLV-LVI) have been prepared via the carbodiimide and acid chloride methods. Hydrazinolysis of 3- or