1-[5-(4-methoxyphenyl)thiophene-2-yl]ethanone

4,4-二甲氧基联苯

1-(5'-butyl-2,2'-bithiophene-5-yl)ethanone

1-(5'-methyl-2,2'-bithiophene-5-yl)ethanone

1-(5'-chloro-2,2'-bithiophene-5-yl)ethanone