3209-72-1
5-甲基-3-异噁唑羧酸乙酯
→
823219-87-0
ethyl 5-[(4-chlorophenyl)sulfanylmethyl]-1,2-oxazole-3-carboxylate
84654-29-5
5-溴甲基异噁唑-3-甲酸乙酯
+
106-54-7
4-氯苯硫酚