1	K5L	(2~{R})-2-azanyl-3-(3-oxidanyl-3-oxidanylidene-propanoyl)oxy-propanoic acid	1.000
2	J8W	(2~{S})-2-azanyl-3-(3-oxidanyl-3-oxidanylidene-propanoyl)oxy-propanoic acid	1.000
3	42Y	O-propanoyl-L-serine	0.846
4	SRZ	Propoxy-L-serine	0.846
5	1X6	O-[(2e)-3-aminoprop-2-enoyl]-L-serine	0.786
6	432	O-butanoyl-L-serine	0.786
7	7BC	3-(acryloyloxy)propanoic acid	0.769
8	OAS	O-acetylserine	0.769
9	0AH	O-(bromoacetyl)-L-serine	0.714
10	73C	(2~{S})-2-azanyl-3-butoxy-propanoic acid	0.714
11	TH5	O-acetyl-L-threonine	0.714
12	TIS	O-(1,1-dihydroxyethyl)-L-serine	0.714