Structure based on 2amb

Ideal structure
Name: 17-hydroxy-18a-homo-19-nor-17alpha-pregna-4,9,11-trien-3-one
Formula: C21 H28 O2
Weight: 312.446
SMILES: "CC[C]1(O)CC[CH]2[CH]3CCC4=CC(=O)CCC4=C3C=C[C]12CC"
Spacial conformation based on PDB 2amb
RESIDUE   17H     51
CONECT      C2     4 C1   C3   H21  H22 
CONECT      C4     3 C3   C5   H4  
CONECT      C7     4 C6   C8   H71  H72 
CONECT      C6     4 C7   C5   H61  H62 
CONECT      C9     3 C11  C8   C10 
CONECT      C11    3 C9   C12  H11 
CONECT      C1     4 C2   C10  H11A H12A
CONECT      C3     3 C2   C4   O3  
CONECT      C5     3 C4   C6   C10 
CONECT      C8     4 C7   C9   C14  H8  
CONECT      C10    3 C9   C1   C5  
CONECT      C12    3 C11  C13  H12 
CONECT      C13    4 C12  C14  C17  C18 
CONECT      C14    4 C8   C13  C15  H14 
CONECT      C15    4 C14  C16  H151 H152
CONECT      C16    4 C15  C17  H161 H162
CONECT      C17    4 C13  C16  C20  O17 
CONECT      C18    4 C13  C22  H181 H182
CONECT      C22    4 C18  H221 H222 H223
CONECT      C21    4 C20  H211 H212 H213
CONECT      C20    4 C17  C21  H201 H202
CONECT      O3     1 C3  
CONECT      O17    2 C17  H17 
CONECT      H21    1 C2  
CONECT      H22    1 C2  
CONECT      H4     1 C4  
CONECT      H71    1 C7  
CONECT      H72    1 C7  
CONECT      H61    1 C6  
CONECT      H62    1 C6  
CONECT      H11    1 C11 
CONECT      H11A   1 C1  
CONECT      H12A   1 C1  
CONECT      H8     1 C8  
CONECT      H12    1 C12 
CONECT      H14    1 C14 
CONECT      H151   1 C15 
CONECT      H152   1 C15 
CONECT      H161   1 C16 
CONECT      H162   1 C16 
CONECT      H181   1 C18 
CONECT      H182   1 C18 
CONECT      H221   1 C22 
CONECT      H222   1 C22 
CONECT      H223   1 C22 
CONECT      H211   1 C21 
CONECT      H212   1 C21 
CONECT      H213   1 C21 
CONECT      H201   1 C20 
CONECT      H202   1 C20 
CONECT      H17    1 O17 
END   
HET    17H             51
HETNAM     17H 17-HYDROXY-18A-HOMO-19-NOR-17ALPHA-PREGNA-4,9,11-TRIEN-
HETNAM   2 17H 3-ONE
FORMUL      17H    C21 H28 O2

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