eight synthetic n-diazoacetyl amino acids , prepared by inserting a diazoacetyl group onto the alpha-nitrogen of a natural amino acid , and two natural diazoazetyl amino acids , azaserine ( 9-diazoacetyl-l-serine ) and don ( 6-diazo-5-oxo-l-norleucine ) , have been studied by autoradiography for their capacity to induce dna repair synthesis in mouse cells cultivated `` '' in vitro '' '' .
C0004480
azaserine
C0036720
serine