2-Propen-1-one, 3-(3-((5-(4-(2,4-dihydroxybenzoyl)tetrahydro-5-(4-hydroxyphenyl)-3-((4-hydroxyphenyl)methyl)-2-furanyl)-2,4-dihydroxyphenyl)(2,4-dihydroxyphenyl)methyl)-2-(4-hydroxyphenyl)-5-benzofuranyl)-1-(2,4-dihydroxyphenyl)-, (2alpha(R*2R*,3R*,5E))