1395-20-6 1395-22-8 1404-81-5 29393-20-2 7-Oxabicyclo(4.1.0)heptane-2-propionic acid, alpha-(2-aminopropionamido)-5-oxo-, stereoisomer Alanyl(2,3-epoxycyclohexanone-4)alanine Antibiotic KM 208 Bacillin Bacilysin KM-208 N-L-Alanyl-3-(5-oxo-7-oxabicyclo(4.1.0)hept-2-yl)-L-alanine Tetaine alpha-((2-Amino-1-oxopropyl)amino)-5-oxo-7-oxabicyclo(4.1.0)heptane-2-propanoic acid alpha-(2-Aminopropionamido)-5-oxo-7-oxabicyclo(4.1.0)heptane-2-propionic acid