The synthesis of rac-6′-bromo-3′-diethylamino-3H-spiro[2-benzofuran-1,9′-xanthen]-3-one and its resolution into separate enantiomers is described. The structures of the racemate and of the individual enantiomers were determined and showed differing degrees of folding of the xanthene portion, which were attributed primarily to packing interactions. The supramolecular features of the three structures show significant differences.
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