49844-36-2
6-氯-2,3,4,9-四氢-1h-咔唑-1-羧酸乙酯
→
~90%
50639-66-2
6-氯-2,3,4,9-四氢-1H-咔唑-1-羧酸
1655-07-8
2-环己酮甲酸乙酯
30132-23-1
3-溴-2-氧-环己酮甲酸乙酯
49843-98-3
6-氯-2,3,4,9-四氢-1H-咔唑-1-羧酰胺