2--1,4,5,6,8-pentamethoxy-3-(phenylethynyl)naphthalene

3-hydroxy-3-(α-hydroxybenzyl)-4,5,6,8,9-pentamethoxyspiro<2H-benzindene-2,1'-cyclopentan>-1(3H)-one

<1,4,5,6,8-pentamethoxy-3-(phenylethynyl)-2-naphthyl>-<1-(phenylseleno)cyclopentyl>methanone