Research Information System
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.71, 2015 (ESCI)
In the title compound, C23H24BrNO5, the central 1,4-di-hydro-pyridine ring of the 1,2,3,4,5,6,7,8,9,10-deca-hydro-acridine ring system adopts a half-chair conformation. The two cyclo-hexene rings fused to the central ring both have a twisted-boat conformation. The mean planes of the bromo-hydroxy-phenyl ring and the major and minor components of the disordered ethyl amino-acetate moiety make dihedral angles of 78.99 (12), 85.9 (2) and 88.3 (9)degrees, respectively, with the 1,4-di-hydro-pyridine ring. The terminal ethyl group of the ethyl amino-acetate moiety is disordered over two sets of sites with refined occupancies of 0.768 (17) and 0.232 (17). The mol-ecular conformation is stabilized by an intra-molecular O-H center dot center dot center dot O hydrogen bond, forming an S(8) ring motif. In the crystal, C-H center dot center dot center dot O hydrogen bonds connect the mol-ecules into layers parallel to (001), enclosing R-1(2)(7) ring motifs.