methyl (1RS)-4-O-acetyl-1-({N-[(tert-butoxy)carbonyl]amino}methyl)-1,2,3-trideoxy-D-arabino-hexopyranuronate

N-((1S)-1-{[N-(S-[(tert-butyl)sulfanyl]-N-{[(9H-fluoren-9-yl)methoxy]carbonyl}-L-cysteinyl)amino]methyl}-1,2,3-trideoxy-6-oxo-D-arabino-hexopyranos-6-yl)-D-leucine methyl ester

N-[(1R)-1-({N-[(tert-butoxy)carbonyl]amino}methyl)-1,2,3-trideoxy-6-oxo-D-arabino-hexapyranos-6-yl]-D-leucine methyl ester