1397-84-8 AA223 lederle Alazopeptin Allyl-(6-diazo-5-oxo)-L-norleucyl-(6-diazo-5-oxo)-L-norleucine Allyl-(6-diazo-5-oxo)-norleucyl-(6-diazo-5-oxo)-norleucine Ambomycin L-Allyl-(6-diazo-5-oxo)-L-norleucyl-(6-diazo-5-oxo)-L-norleucine Lederle AA223 Norleucine, 6-diazo-5-oxo-N-2-propenylnorleucyl-6-diazo-5-oxo- Norleucine, 6-diazo-N-(6-diazo-5-oxo-N-2-propenylnorleucyl)-5-oxo-