ethyl 6-methyl-4-(5-nitrothiophen-2-yl)-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate

5-硝基噻吩-2-羰酰氯

3-(5-nitrothiophen-2-yl)-1-phenylprop-2-en-1-one

2-氯甲基-5-硝基噻吩

5-硝基噻吩-2-甲酸