Structure based on 4z1k

Ideal structure
Name: 4-[(6,7-dihydroxy-3,4-dihydroisoquinolin-2(1h)-yl)carbonyl]benzenesulfonamide
Formula: C16 H16 N2 O5 S
Weight: 348.374
SMILES: "N[S](=O)(=O)c1ccc(cc1)C(=O)N2CCc3cc(O)c(O)cc3C2"
Spacial conformation based on PDB 4z1k
RESIDUE   4KB     40
CONECT      C3     3 C4   C16  H1  
CONECT      C4     3 C3   C5   C8  
CONECT      C9     3 C10  O    N   
CONECT      C10    3 C9   C11  C15 
CONECT      C5     4 C4   N    H2   H3  
CONECT      C6     4 C7   N    H4   H5  
CONECT      C7     4 C6   C8   H6   H7  
CONECT      C8     3 C4   C7   C18 
CONECT      O      1 C9  
CONECT      C11    3 C10  C12  H8  
CONECT      C12    3 C11  C13  H9  
CONECT      C15    3 C10  C14  H10 
CONECT      C14    3 C15  C13  H11 
CONECT      C13    3 C12  C14  S   
CONECT      S      4 C13  N1   O1   O2  
CONECT      N1     3 S    H12  H13 
CONECT      O1     1 S   
CONECT      O2     1 S   
CONECT      N      3 C9   C5   C6  
CONECT      C18    3 C8   C17  H14 
CONECT      C17    3 C18  O17  C16 
CONECT      O17    2 C17  H15 
CONECT      C16    3 C3   C17  O16 
CONECT      O16    2 C16  H16 
CONECT      H1     1 C3  
CONECT      H2     1 C5  
CONECT      H3     1 C5  
CONECT      H4     1 C6  
CONECT      H5     1 C6  
CONECT      H6     1 C7  
CONECT      H7     1 C7  
CONECT      H8     1 C11 
CONECT      H9     1 C12 
CONECT      H10    1 C15 
CONECT      H11    1 C14 
CONECT      H12    1 N1  
CONECT      H13    1 N1  
CONECT      H14    1 C18 
CONECT      H15    1 O17 
CONECT      H16    1 O16 
END   
HET    4KB             40
HETNAM     4KB 4-[(6,7-dihydroxy-3,4-dihydroisoquinolin-2(1H)-yl)carbo
HETNAM   2 4KB nyl]benzenesulfonamide
FORMUL      4KB    C16 H16 N2 O5 S1

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