1	YT4	Methyl (2r)-2-(phenylmethoxycarbonylamino)-3-sulfanyl-propanoate	1.000
2	BBL	N-[(benzyloxy)carbonyl]-L-alanine	0.789
3	RDY	N-[(benzyloxy)carbonyl]-N-methyl-L-alanine	0.750
4	959	Benzyl (2-oxopropyl)carbamate	0.737