104340-87-6
methyl 5-(acetylthio)-3-hydroxythiophene-2-carboxylate
→
~90%
104340-92-3
methyl 3-hydroxy-5-sulfanylthiophene-2-carboxylate
95201-94-8
2-氯-3-氧代-2,3-二氢-2-噻吩羧酸甲酯
104386-67-6
3-羟基-5-(甲基硫代)噻吩-2-羧酸甲酯