57800-76-7
5-氯-4-硝基噻吩-2-羧酸甲酯
+
108-24-7
乙酸酐
→
~67%
89499-29-6
methyl 4-acetamido-5-chlorothiophene-2-carboxylate
89499-44-5
4-氨基-5-氯噻吩-2-甲酸甲酯
89499-36-5
4-amino-5-chlorothiophene-2-carboxylic acid,hydrochloride