1	48R	(2r)-3-[(9h-fluoren-9-ylideneamino)oxy]-2-methyl-N-(methylsulfonyl)propanamide	1.000
2	6BD	(2s)-3-[(9h-fluoren-9-ylideneamino)oxy]-2-methylpropanoic acid	0.769
3	7BD	3-[(9h-fluoren-9-ylideneamino)oxy]propanoic acid	0.731