1	Z3E	O-benzyl-L-threonine	1.000
2	SEM	O-benzyl-L-serine	0.933
3	TB1	(3s)-3-(benzyloxy)-L-aspartic acid	0.882
4	QJW	(2~{S},3~{S})-2-azanyl-3-[(2-nitrophenyl)methoxy]butanedioic acid	0.750