abstract |
The present invention relates to a production method capable of producing a 2-methyl-2'-phenylpropionic acid derivative exhibiting antihistamine activity by a more simplified method, an intermediate compound used therein, and a production method thereof It is. According to the present invention, a pharmaceutically useful 2-methyl-2'-phenylpropionic acid derivative can be produced in high yield, high purity, and on an industrial scale. |