(3aS-(3aalpha,4beta,9alpha,9abeta))-4-((4-fluorophenyl)amino)-3a,4,9,9a-tetrahydro-9-(4-hydroxy-3,5-dimethoxyphenyl)-6,7-dimethoxynaphtho(2,3-c)furan-1(3H)-one 138355-97-2