Structure based on 1s3u

Ideal structure
Name: (2r,6s)-6-{[methyl(3,4,5-trimethoxyphenyl)amino]methyl}-1,2,5,6,7,8-hexahydroquinazoline-2,4-diamine
Formula: C19 H29 N5 O3
Weight: 375.465
SMILES: "COc1cc(cc(OC)c1OC)N(C)C[CH]2CCC3=C(C2)C(=N[CH](N)N3)N"
Spacial conformation based on PDB 1s3u.
Also present on 1s3v
RESIDUE   TQD     56
CONECT      C2D    4 N1'  N2'  N3'  H2' 
CONECT      C4D    3 C4A  N3'  N4' 
CONECT      C4A    3 C4D  C5D  C8A 
CONECT      C5D    4 C4A  C6D  H5'1 H5'2
CONECT      C6D    4 C5D  C7'  C8'  H6' 
CONECT      C7'    4 C6D  C8   H7'1 H7'2
CONECT      C8     4 C7'  C8A  H81  H82 
CONECT      C8A    3 C4A  C8   N1' 
CONECT      C8'    4 C6D  N9'  H8'1 H8'2
CONECT      C1'    3 C2'  C6'  N9' 
CONECT      C2'    3 C1'  C3'  H2'1
CONECT      C3'    3 C2'  C4'  O3' 
CONECT      C3B    4 O3'  H3B1 H3B2 H3B3
CONECT      C4'    3 C3'  C5'  O4' 
CONECT      C4B    4 O4'  H4B1 H4B2 H4B3
CONECT      C5'    3 C4'  C6'  O5' 
CONECT      C5B    4 O5'  H5B1 H5B2 H5B3
CONECT      C6'    3 C1'  C5'  H6'1
CONECT      N1'    3 C2D  C8A  H1D 
CONECT      N2'    3 C2D  H2A1 H2A2
CONECT      N3'    2 C2D  C4D 
CONECT      N4'    3 C4D  H4'1 H4'2
CONECT      N9'    3 C8'  C1'  C9' 
CONECT      O3'    2 C3'  C3B 
CONECT      O4'    2 C4'  C4B 
CONECT      O5'    2 C5'  C5B 
CONECT      C9'    4 N9'  H9'1 H9'2 H9'3
CONECT      H2'    1 C2D 
CONECT      H5'1   1 C5D 
CONECT      H5'2   1 C5D 
CONECT      H6'    1 C6D 
CONECT      H7'1   1 C7' 
CONECT      H7'2   1 C7' 
CONECT      H81    1 C8  
CONECT      H82    1 C8  
CONECT      H8'1   1 C8' 
CONECT      H8'2   1 C8' 
CONECT      H2'1   1 C2' 
CONECT      H3B1   1 C3B 
CONECT      H3B2   1 C3B 
CONECT      H3B3   1 C3B 
CONECT      H4B1   1 C4B 
CONECT      H4B2   1 C4B 
CONECT      H4B3   1 C4B 
CONECT      H5B1   1 C5B 
CONECT      H5B2   1 C5B 
CONECT      H5B3   1 C5B 
CONECT      H6'1   1 C6' 
CONECT      H1D    1 N1' 
CONECT      H2A1   1 N2' 
CONECT      H2A2   1 N2' 
CONECT      H4'1   1 N4' 
CONECT      H4'2   1 N4' 
CONECT      H9'1   1 C9' 
CONECT      H9'2   1 C9' 
CONECT      H9'3   1 C9' 
END   
HET    TQD             56
HETNAM     TQD (2R,6S)-6-{[methyl(3,4,5-trimethoxyphenyl)amino]methyl}
HETNAM   2 TQD -1,2,5,6,7,8-hexahydroquinazoline-2,4-diamine
FORMUL      TQD    C19 H29 N5 O3

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