Disclosed is a process for efficiently producing a compound represented by formula (I):
wherein R1 represents aryl, amino, alkyl, or alkoxy; R2 represents a protective group of the carboxylic acid; and R3 represents an alkali metal, a hydrogen atom, alkyl, aryl, alkylsulfonyl, arylsulfonyl, or trialkylsilyl. This process is characterized by reacting a compound of formula (II) with a compound of formula (III) in the presence of a transition metal compound.
本发明公开了一种有效制备公式(I)所代表的化合物的方法:其中,R1代表芳基、
氨基、烷基或烷氧基;R2代表
羧酸的保护基;R3代表碱
金属、氢原子、烷基、芳基、烷基磺酰基、芳基磺酰基或三烷基
硅基。该方法的特点在于,在过渡
金属化合物的存在下,将公式(II)的化合物与公式(III)的化合物反应。