organic compounds
In the title macrocyclic compound, 3,10,18,25,31,32-hexaazapentacyclo[25.3.1.112,16.04,9.019,24]dotriconta-1(30),4,6,8,12,14,-16(32),19,21,23,27(31),28-dodecaene-2,11,17,26-tetrone dimethylformamide solvate, C26H18N6O4·C3H7NO, the two pyridine rings are approximately perpendicular to each other, the dihedral angle between them being 82.1 (1)°. The macrocycle possesses mirror symmetry. The dihedral angle between the two benzene rings is 119.6 (1)°.
organic compounds
The title compound, C28H46O2, was isolated from soft coral (Nephthea sp.) collected from Yongxing island of the Xisha archipelago in the South China Sea and its crystal structure has been determined. In the crystal structure, intermolecular O—HO hydrogen-bond interactions link the molecules into extended ribbons parallel to the a axis.