Dehydro and cyclopropyl amino acids and peptides.
D000596:Amino Acids / Q000138:chemical synthesis*; D004745:Enkephalins / Q000138:chemical synthesis*; D007202:Indicators and Reagents; D013329:Structure-Activity Relationship
D000596:Amino Acids; D004745:Enkephalins; D007202:Indicators and Reagents