Abstract
The title compound, C(46)H(26)N(2)O(7)·1.5CH(3)CN, is the aldol condensation product of bindone with indazole-3-carbaldehyde followed by double inter-molecular cyclization. The asymmetric unit, which has monoclinic P2(1)/c symmetry, contains two independent mol-ecules of the title compound and three aceto-nitrile mol-ecules. The title mol-ecule comprises a central eight-membered ring, which contains an enol-ester, from which five arms extend. The arms exhibit inter-molecular inter-actions within the crystal lattice between mol-ecules of the title compound and with co-crystallized solvent mol-ecules (aceto-nitrile).