The title compound, commonly known as 14-methoxy-tajixanthone-25-acetate, C28H 3 0O 8 , was isolated from Emericella variecolor. The central xanthone core is approximately planar (r.m.s. deviation = 0.084 Å). The dihydro-pyran ring adopts a distorted half-chair conformation. The oxirane plane is oriented at an angle of 63.3 (2)° with respect to the phenol group. An intra-molecular O- H⋯O hydrogen bond forms an S(6) ring. In the crystal, mol-ecules are linked into a two-dimensional network parallel to the ab plane by weak inter-molecular C- H⋯O hydrogen bonds.
Liangsakul, J., Srisurichan, S., Muangsin, N., Chaichit, N., & Pornpakakul, S. (2009). 8-[(3,3-Dimethyl-oxiran-2-yl)methoxy-meth-yl]-11-hydr-oxy-2-isopropenyl-5- methyl-12-oxo-1,2,3,12-tetra-hydro-pyrano[3,2-a]xanthen-1-yl acetate. Acta Crystallographica Section E: Structure Reports Online, 65(10). https://doi.org/10.1107/S1600536809038343