8,8-dimethyl-3-(2,4,5-trimethoxyphenyl)pyrano[2,3-f]chromen-4-one

trimethyl(5-methylhexa-3,4-dien-1-ynyl)silane

5-(2-methylprop-1-enylidene)-1-nitrononan-4-one

1-hydroxy-3,5,6-tris(2-methylbut-3-en-2-yloxy)xanthen-9-one

1-hydroxy-3,5,6-tris(2-methylbut-3-yn-2-yloxy)xanthen-9-one