异丙胺 、
diethyl 3-methylisoxazole-4,5-dicarboxylate 在
silica gel 作用下,
以
甲醇 为溶剂,
反应 7.0h,
以Methyl 5-isopropylaminocarbonyl-3-methylisoxazole-4-carboxylate is obtained as colorless crystals of melting point 64°-66° C. (compound No的产率得到Methyl 5-isopropylaminocarbonyl-3-methylisoxazole-4-carboxylate