4,4',6,6'-tetramethoxy-3,3'-dimethyl-1,1'-biphenyl-2,2'-diol

甲基碘

1,3,7,9-tetramethoxydibenzofuran

1,3,7,9-tetramethoxy-4-methyldibenzofuran

(1,3,7,9-tetramethoxy-6-methyldibenzo[b,d]furan-4-yl)methanol