(1-ethylimidazol-2-yl)-thiophen-2-ylmethanone

4,4-dimethyl-2-thiophen-2-yl-5H-1,3-oxazole

4-phenyl-4H-thieno[2,3-c]furan-6-one

2-(2-噻吩基)-色原酮

1-(2-hydroxyphenyl)-3-thiophen-2-ylpropane-1,3-dione