In the title compound, C25H29FO4, each cyclo-hexenone ring has an envelope conformation with the dimethyl-substituted atom as the flap. The hy-droxy and carbonyl groups form two intra-molecular O-H⋯O hydrogen bonds, as is typical for xanthene derivatives. In the crystal, very weak C-H⋯O hydrogen bonds link mol-ecules into dimers.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3588420 | PMC |
http://dx.doi.org/10.1107/S1600536813004364 | DOI Listing |
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