3-methyl-2-(5-nitrothiophen-2-yl)-1-benzofuran

3-methyl-2-[2-(5-nitrothiophen-2-yl)ethenyl]-1-benzofuran

1-(4-氯苯基)-3-(2-羟基苯基)丙烷-1,3-二酮

1-(2-呋喃基)-3-(2-羟基苯基)-1,3-丙烷二酮

2-(3,4-dihydroxyphenyl)-2,3-dihydrochromen-4-one