8,13-Diisopropyl-10,11-dimethyl-bis([1,3]dioxolo[4′,5′:6,7]naphtho)-[1,2-d;2,1-f][1,3]dioxepine

摘要

The title compound, C 31 H 30 O 6 , was obtained by protecting the six hy-droxy groups of apogossypol by acetalization with di-chloro-methane. The mol-ecule has a bridging dioxepine unit which hinders the rotation around the 2,2′-inter-naphthyl bond. The dihedral angle between the naphthyl units is 55.73?(3)°. In the crystal, very weak C—H?O inter-actions may help to consolidate the packing.