3-amino-4-chloro-indazole-2-carboxylic acid ethyl ester 以
焦碳酸二乙酯 为溶剂,
反应 3.0h,
以Analogously to Example 1, 0.2 mol of 3-amino-4-chloroindazole in 100 ml of pyrocarbonic acid diethyl ester gives 3-amino-4-chloroindazole-2-carboxylic acid ethyl ester (melting point: 109°-111° C; 63% of theory) in 3 hours at 20°-30° C.的产率得到4-氯-1H-吲唑-3-胺
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名称:
3-Aminoindazole-1 and 2-carboxylic acid derivatives