A compound represented by the general formula:
where X is a halogen atom, an alkyl group having from 1 to 8 carbon atoms or a cyano group, and R is an alkyl group having from 1 to 8 carbon atoms.
通式如下的化合物
其中 X 是卤素原子、1 至 8 个碳原子的烷基或
氰基,R 是 1 至 8 个碳原子的烷基。