氢氧化钾 、 3-二乙氧基丙烷-1,1-二甲酸二乙酯 在
氩 、 甲苯 作用下,
以
乙醇 为溶剂,
反应 4.0h,
以to obtain 2.45 Kg of the title compound as a yellowish high-viscous oil substantially quantitatively的产率得到potassium 4,4-diethoxy-2-ethoxycarbonylbutanoate
The present invention discloses a pyrrolopyridazinone compound represented by the formula (1):
useful, for example, as an anti-inflammatory agent or an inhibitor of respiratory tract contraction.