%0 Journal Article %T Hexamethyl 13,14-dioxapentacyclo[8.2.1.14,7.02,9.03,8]tetradeca-5,11-diene-1,4,5,6,11,12-hexacarboxylate %A Alan J. Lough %A Kelsey Jack %A William Tam %J Acta Crystallographica Section E %D 2012 %I International Union of Crystallography %R 10.1107/s1600536812039232 %X In the title compound, C24H24O14, the stereochemistry at the cyclobutane ring is cis-anti-cis and the ¨CCOOMe groups in the bicyclic rings are syn to each other. The molecule lies on a twofold rotation axis. In the crystal, weak C¡ªH...O hydrogen bonds connect molecules into chains along [001], forming R22(10) rings. %U http://scripts.iucr.org/cgi-bin/paper?S1600536812039232