(-)-Neoarctin B 155969-67-8 2(3H)-Furanone, 4,4'-((2,2'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(methylene))bis(dihydro-3-((4-hydroxy-3,5-dimethoxyphenyl)methyl)-, (3R,3'R,4R,4'R)-rel-(-)- 2(3H)-Furanone, 4,4'-((2,2'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(methylene))bis(dihydro-3-((4-hydroxy-3,5-dimethoxyphenyl)methyl)-, (3alpha,4beta(3'R*,4'R*))-(-)- Neoarctin B