The present invention relates to a compound of formula (1), wherein R
1
, R
2
, R
3
, n, and X are as defined in the specification, and a process for producing the same. This compound is useful as an intermediate for the synthesis of compounds useful as pharmaceuticals or agricultural chemicals.
本发明涉及一种式(1)的化合物,其中R1、R2、R3、n和X如规范中所定义,并提供其生产方法。该化合物可用作合成对制药或农业
化学品有用的化合物的中间体。