Structure based on 1kvm

Ideal structure
Name: 5-methylene-2-[2-oxo-1-(2-thiophen-2-yl-acetylamino)-ethyl]-5,6-dihydro-2h-[1,3]thiazine-4-carboxylic acid
Formula: C14 H14 N2 O4 S2
Weight: 338.402
SMILES: "OC(=O)C1=N[CH](SCC1=C)[CH](NC(=O)Cc2sccc2)C=O"
Spacial conformation based on PDB 1kvm.
Also present on 2zq9, 8akj
RESIDUE   CEO     36
CONECT      S1     2 C2   C6  
CONECT      C2     4 S1   C3   HC21 HC22
CONECT      C3     3 C2   C3'  C4  
CONECT      C3'    3 C3   H3'1 H3'2
CONECT      C4     3 C3   C4'  N5  
CONECT      C4'    3 C4   O4A  O4B 
CONECT      O4A    2 C4'  H4A 
CONECT      O4B    1 C4' 
CONECT      N5     2 C4   C6  
CONECT      C6     4 S1   N5   C7   HC6 
CONECT      C7     4 C6   C8   N10  HC7 
CONECT      C8     3 C7   O9   HC8 
CONECT      O9     1 C8  
CONECT      N10    3 C7   C11  H10 
CONECT      C11    3 N10  O12  C13 
CONECT      O12    1 C11 
CONECT      C13    4 C11  C14  H131 H132
CONECT      C14    3 C13  C15  S19 
CONECT      C15    3 C14  C16  H15 
CONECT      C16    3 C15  C17  H16 
CONECT      C17    3 C16  S19  H17 
CONECT      S19    2 C14  C17 
CONECT      HC21   1 C2  
CONECT      HC22   1 C2  
CONECT      H3'1   1 C3' 
CONECT      H3'2   1 C3' 
CONECT      H4A    1 O4A 
CONECT      HC6    1 C6  
CONECT      HC7    1 C7  
CONECT      HC8    1 C8  
CONECT      H10    1 N10 
CONECT      H131   1 C13 
CONECT      H132   1 C13 
CONECT      H15    1 C15 
CONECT      H16    1 C16 
CONECT      H17    1 C17 
END   
HET    CEO             36
HETSYN     CEO HYDROLYZED CEPHALOTHIN
HETNAM     CEO 5-METHYLENE-2-[2-OXO-1-(2-THIOPHEN-2-YL-ACETYLAMINO)-ET
HETNAM   2 CEO HYL]-5,6-DIHYDRO-2H-[1,3]THIAZINE-4-CARBOXYLIC ACID
FORMUL      CEO    C14 H14 N2 O4 S2

This OCA MONOMER page
uses Jmol, developed by the Jmol Development Team (color reference)
OCA© by Jaime Prilusky, 1996-2004,2006,2010,2014
Bioinformatics Unit
Weizmann Institute of Science