Dimethyl 4,4'-dihy-droxy-3,3'-{[(3aRS,7aRS)-2,3,3a,4,5,6,7,7a-octa-hydro-1H-1,3-benzimidazole-1,3-di-yl]bis-(methyl-ene)}dibenzoate.
The title compound, C(25)H(30)N(2)O(6), has the imidazolidine ring in an envelope conformation. There are two intra-molecular O-H⋯N hydrogen-bond inter-actions with graph-set motif S(6). The cyclo-hexane ring adopts a slightly distorted chair conformation. One methyl carboxyl-ate substituent forms a dihedral angle of 12.00 (5)° with the plane of the benzene ring, while the other methyl carboxyl-ate group is almost coplanar, making a dihedral angle of 2.26 (9)°. In the crystal, pairs of inter-molecular C-H⋯O hydrogen bonds form racemic dimers, corresponding to an R(2) (2)(18) graph-set motif. Further weak C-H⋯O inter-actions generate a chain running along the c axis.
Augusto
A
Rivera
Diego
D
Quiroga
Jaime
J
Ríos-Motta
Karla
K
Fejfarová
Michal
M
Dušek