poly ( lys- ( xi-dl-alam ] polypeptides carrying hydrophilic ( x = his , glu , lys ) or hydrophobic ( x = nle , ile , phe ) amino acid residues and their conjugates with 4-ethoxymethylene-2-phenyl-5 ( 4h ) -oxazolone were synthesized .
C0061472
glu
C0002520
amino acid