141-97-9
乙酰乙酸乙酯
+
23451-95-8
2-氨基-5-溴苯硫醇
→
~86%
82297-83-4
ethyl 7-bromo-3-methyl-4H-1,4-benzothiazine-2-carboxylate
609-15-4
2-氯乙酰乙酸乙酯
~48%