4-benzo[b]thiophen-3-yl-4-oxo-butyric acid

4-(1-benzothiophen-2-yl)-4-oxobutanoic acid

噻吩并[3,2-f:4,5-f]双[1]苯并噻吩

苯并[b]噻吩-2-乙腈

苯并[b]噻吩-2-乙酸