4,5,7,8,17-Pentahydroxy-14,18-dimethyl-6-methylene-3,10-dioxapentacyclo[9.8.0.0<sup>1,7</sup>.0<sup>4,19</sup>.0<sup>13,18</sup>]nonadec-14-ene-9,16-dione methanol solvate dihydrate
Acta crystallographica. Section E