Structure based on 1l8g

Ideal structure
Name: 7-(1,1-dioxo-1h-benzo[d]isothiazol-3-yloxymethyl)-2-(oxalyl-amino)-4,7-dihydro-5h-thieno[2,3-c]pyran-3-carboxylic acid
Formula: C18 H14 N2 O9 S2
Weight: 466.442
SMILES: "OC(=O)C(=O)Nc1sc2[CH](COC3=N[S](=O)(=O)c4ccccc34)OCCc2c1C(O)=O"
Spacial conformation based on PDB 1l8g
RESIDUE   DBD     45
CONECT      O1     2 C2   C6  
CONECT      C2     4 O1   C3   C19  H2  
CONECT      C3     3 C2   C4   S7  
CONECT      C4     3 C3   C5   C9  
CONECT      C5     4 C4   C6   H51  H52 
CONECT      C6     4 O1   C5   H61  H62 
CONECT      S7     2 C3   C8  
CONECT      C8     3 S7   C9   N13 
CONECT      C9     3 C4   C8   C10 
CONECT      C10    3 C9   O11  O12 
CONECT      O11    1 C10 
CONECT      O12    2 C10  H12 
CONECT      N13    3 C8   C14  H13 
CONECT      C14    3 N13  C15  O18 
CONECT      C15    3 C14  O16  O17 
CONECT      O16    1 C15 
CONECT      O17    2 C15  H17 
CONECT      O18    1 C14 
CONECT      C19    4 C2   O20  H191 H192
CONECT      O20    2 C19  C21 
CONECT      C21    3 O20  C22  N25 
CONECT      C22    3 C21  C23  C26 
CONECT      C23    3 C22  S24  C29 
CONECT      S24    4 C23  N25  O30  O31 
CONECT      N25    2 C21  S24 
CONECT      C26    3 C22  C27  H26 
CONECT      C27    3 C26  C28  H27 
CONECT      C28    3 C27  C29  H28 
CONECT      C29    3 C23  C28  H29 
CONECT      O30    1 S24 
CONECT      O31    1 S24 
CONECT      H2     1 C2  
CONECT      H51    1 C5  
CONECT      H52    1 C5  
CONECT      H61    1 C6  
CONECT      H62    1 C6  
CONECT      H12    1 O12 
CONECT      H13    1 N13 
CONECT      H17    1 O17 
CONECT      H191   1 C19 
CONECT      H192   1 C19 
CONECT      H26    1 C26 
CONECT      H27    1 C27 
CONECT      H28    1 C28 
CONECT      H29    1 C29 
END   
HET    DBD             45
HETNAM     DBD 7-(1,1-DIOXO-1H-BENZO[D]ISOTHIAZOL-3-YLOXYMETHYL)-2-(OX
HETNAM   2 DBD ALYL-AMINO)-4,7-DIHYDRO-5H-THIENO[2,3-C]PYRAN-3-CARBOXY
HETNAM   3 DBD LIC ACID
FORMUL      DBD    C18 H14 N2 O9 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