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Although the mol­ecular structure of the title compound, C 22 H 32 N 4 O 8 , displays a twofold symmetry of the mol­ecule including the meth­oxy and methyl substituents, no crystallographic twofold symmetry is observed in the X-ray structure analysis. The carbonyl O atoms alternately point to different sides of the plane defined by the carbonyl C atoms. Two meth­oxy groups are oriented inside the mol­ecules cavity. The H atoms of two methyl groups are disordered over two orientations and were refined using a split model.

acta crystallographica. section e

7-Isopropylidene-N2,N3,N5,N6-tetramethoxy-N2,N3,N5,N6-tetramethylbicyclo[2.2.1]hepta-2,5-diene-2,3,5,6-tetracarboxamide