Structure based on 5kit

Ideal structure
Name: ~{tert}-butyl (2~{s})-2-[(1,3-dihydropyrrolo[3,4-c]pyridin-2-ylcarbonylamino)methyl]-6-azaspiro[2.5]octane-6-carboxylate
Formula: C21 H30 N4 O3
Weight: 386.488
SMILES: "CC(C)(C)OC(=O)N1CCC2(CC1)C[CH]2CNC(=O)N3Cc4ccncc4C3"
Spacial conformation based on PDB 5kit
RESIDUE   6TA     58
CONECT      C4     4 C2   H1   H2   H3  
CONECT      C6     3 O5   O7   N8  
CONECT      C10    4 C9   C11  H4   H5  
CONECT      C13    4 N8   C12  H6   H7  
CONECT      C15    4 C11  C14  C16  H8  
CONECT      C21    4 C22  N20  H9   H10 
CONECT      C22    3 C21  C23  C27 
CONECT      C24    3 C23  N25  H11 
CONECT      C26    3 N25  C27  H12 
CONECT      C28    4 N20  C27  H13  H14 
CONECT      C1     4 C2   H15  H16  H17 
CONECT      C2     4 C4   C1   C3   O5  
CONECT      C3     4 C2   H18  H19  H20 
CONECT      O5     2 C6   C2  
CONECT      O7     1 C6  
CONECT      N8     3 C6   C13  C9  
CONECT      C9     4 C10  N8   H21  H22 
CONECT      C11    4 C10  C15  C12  C14 
CONECT      C12    4 C13  C11  H23  H24 
CONECT      C14    4 C15  C11  H25  H26 
CONECT      C16    4 C15  N17  H27  H28 
CONECT      N17    3 C16  C18  H29 
CONECT      C18    3 N17  O19  N20 
CONECT      O19    1 C18 
CONECT      N20    3 C21  C28  C18 
CONECT      C23    3 C22  C24  H30 
CONECT      N25    2 C24  C26 
CONECT      C27    3 C22  C26  C28 
CONECT      H1     1 C4  
CONECT      H2     1 C4  
CONECT      H3     1 C4  
CONECT      H4     1 C10 
CONECT      H5     1 C10 
CONECT      H6     1 C13 
CONECT      H7     1 C13 
CONECT      H8     1 C15 
CONECT      H9     1 C21 
CONECT      H10    1 C21 
CONECT      H11    1 C24 
CONECT      H12    1 C26 
CONECT      H13    1 C28 
CONECT      H14    1 C28 
CONECT      H15    1 C1  
CONECT      H16    1 C1  
CONECT      H17    1 C1  
CONECT      H18    1 C3  
CONECT      H19    1 C3  
CONECT      H20    1 C3  
CONECT      H21    1 C9  
CONECT      H22    1 C9  
CONECT      H23    1 C12 
CONECT      H24    1 C12 
CONECT      H25    1 C14 
CONECT      H26    1 C14 
CONECT      H27    1 C16 
CONECT      H28    1 C16 
CONECT      H29    1 N17 
CONECT      H30    1 C23 
END   
HET    6TA             58
HETNAM     6TA ~{tert}-butyl (2~{S})-2-[(1,3-dihydropyrrolo[3,4-c]pyri
HETNAM   2 6TA din-2-ylcarbonylamino)methyl]-6-azaspiro[2.5]octane-6-c
HETNAM   3 6TA arboxylate
FORMUL      6TA    C21 H30 N4 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