1	CEO	5-methylene-2-[2-oxo-1-(2-thiophen-2-yl-acetylamino)-ethyl]-5,6-dihydro-2h-[1,3]thiazine-4-carboxylic acid	1.000
2	63V	(2s)-5-methylidene-2-{(1r)-2-oxo-1-[(thiophen-2-ylacetyl)amino]ethyl}-5,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	1.000
3	CED	5-methyl-2-[2-oxo-1-(2-thiophen-2-yl-acetylamino)-ethyl]-3,6-dihydro-2h-[1,3]thiazine-4-carboxylic acid	1.000
4	KCP	2-[carboxy-(2-thiophen-2-yl-acetylamino)-methyl]-5-methyl-3,6-dihydro-2h-[1,3]thiazine-4-carboxylic acid	0.957
5	THN	2-[carboxy-(2-thiophen-2-yl-acetylamino)-methyl]-5-methylene-5,6-dihydro-2h-[1,3]thiazine-4-carboxylic acid	0.957
6	1S7	(2r)-2-{(1s)-1-methoxy-2-oxo-1-[(thiophen-2-ylacetyl)amino]ethyl}-5-methylidene-5,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.917
7	NCF	(2r)-2-{(1r)-2-oxo-1-[(2-thienylacetyl)amino]ethyl}-5,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.913
8	CD6	(2r)-5-methylidene-2-{(1r)-2-oxo-1-[(phenylacetyl)amino]ethyl}-5,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.875
9	9EP	(2r)-5-[(acetyloxy)methyl]-2-{(1r)-2-oxo-1-[(thiophen-2-ylacetyl)amino]ethyl}-3,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.846
10	CEP	Cephalothin group	0.846
11	63U	(2s)-2-[(1r)-1-{[(2r)-2-amino-2-phenylacetyl]amino}-2-oxoethyl]-5-methyl-3,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.840
12	3S3	(1r)-2-({(R)-carboxy[(2r,5s)-4-carboxy-5-methyl-5,6-dihydro-2h-1,3-thiazin-2-yl]methyl}amino)-2-oxo-1-phenylethanaminium	0.808
13	1QL	(2r)-5-[(carbamoyloxy)methyl]-2-{(1s)-1-methoxy-2-oxo-1-[(thiophen-2-ylacetyl)amino]ethyl}-3,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.786
14	CES	2-[carboxy-(2-furan-2-yl-2-methoxyimino-acetylamino)-methyl]-5-methyl-3,6-dihydro-2h-[1,3]thiazine-4-carboxylic acid	0.778
15	CFU	(2r)-2-[(1r)-1-(acetylamino)-2-oxoethyl]-5-methyl-3,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.773
16	JNX	(2~{R},5~{S})-5-(aminocarbonyloxymethyl)-2-[(1~{S})-1-methoxy-2-oxidanyl-2-oxidanylidene-1-(2-thiophen-2-ylethanoylamino)ethyl]-5,6-dihydro-2~{H}-1,3-thiazine-4-carboxylic acid	0.759
17	PNM	Open form - penicillin G	0.731
18	AIX	(2r,4s)-2-[(1r)-1-{[(2r)-2-amino-2-phenylacetyl]amino}-2-oxoethyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid	0.704
19	LOR	Loracabef (open form)	0.704
20	NDV	(2s,4s)-2-[(1r)-1-{[(2r)-2-amino-2-phenylacetyl]amino}-2-oxoethyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid	0.704
21	NW3	(2s,4s)-2-[(1s)-1-{[(2s)-2-amino-2-phenylacetyl]amino}-2-oxoethyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid	0.704
22	PNK	(2r,4s)-2-{(R)-carboxy[(phenylacetyl)amino]methyl}-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid	0.704
23	DXF	(2r)-5-[(carbamoyloxy)methyl]-2-[(1r)-1-{[(2z)-2-(furan-2-yl)-2-(methoxyimino)acetyl]amino}-2-oxoethyl]-3,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.700