2-(thiophen-2-ylmethylidene)-4H-1,4-benzoxazin-3-one

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

[2]thienylmethyl-carbamic acid ethyl ester

ethyl 4,4-diethoxy-3-oxo-2-(thiophen-2-ylmethylidene)butanoate

2-(2-噻吩基)-色原酮