1,4,5,8-tetramethoxy-naphthalene-2-carbonitrile

1,4,5,8-tetramethoxynaphthalene

N,N-二甲基甲酰胺

1,4-dihydroxy-5,8-dimethoxy-2-naphthonitrile

1,5-dibromo-4,8-dimethoxynaphthalene