Structure based on 4x2g

Ideal structure
Name: 4-[(4-aminophenyl)amino]pyrido[2,3-d]pyrimidin-5(6h)-one
Formula: C13 H11 N5 O
Weight: 253.259
SMILES: "Nc1ccc(Nc2ncnc3N=CCC(=O)c23)cc1"
Spacial conformation based on PDB 4x2g
RESIDUE   3WK     30
CONECT      C1     4 C2   C4   H1   H2  
CONECT      C2     3 C1   N3   H3  
CONECT      C8     3 N7   N9   H4  
CONECT      C10    3 C5   N9   N12 
CONECT      C13    3 C14  N12  C18 
CONECT      C14    3 C13  C15  H5  
CONECT      C15    3 C14  C16  H6  
CONECT      C16    3 C15  C17  N19 
CONECT      N3     2 C2   C6  
CONECT      C4     3 C1   C5   O11 
CONECT      C5     3 C10  C4   C6  
CONECT      C6     3 N3   C5   N7  
CONECT      N7     2 C8   C6  
CONECT      N9     2 C8   C10 
CONECT      O11    1 C4  
CONECT      N12    3 C10  C13  H7  
CONECT      C17    3 C16  C18  H8  
CONECT      C18    3 C13  C17  H9  
CONECT      N19    3 C16  H10  H11 
CONECT      H1     1 C1  
CONECT      H2     1 C1  
CONECT      H3     1 C2  
CONECT      H4     1 C8  
CONECT      H5     1 C14 
CONECT      H6     1 C15 
CONECT      H7     1 N12 
CONECT      H8     1 C17 
CONECT      H9     1 C18 
CONECT      H10    1 N19 
CONECT      H11    1 N19 
END   
HET    3WK             30
HETNAM     3WK 4-[(4-aminophenyl)amino]pyrido[2,3-d]pyrimidin-5(6H)-on
HETNAM   2 3WK e
FORMUL      3WK    C13 H11 N5 O1

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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