Invention Grant
US08633223B2 Process for preparation of 2-methyl-2′-phenylpropionic acid derivatives and novel intermediate compounds 有权
2-甲基-2'-苯基丙酸衍生物和新型中间体化合物的制备方法

Process for preparation of 2-methyl-2′-phenylpropionic acid derivatives and novel intermediate compounds
Abstract:
The present invention relates to a process for preparing 2-methyl-2′-phenylpropionic acid derivatives showing antihistamine activity in more simplified way, intermediate compounds and their preparation processes used therefor. According to the present invention, pharmaceutically useful 2-methyl-2′-phenylpropionic acid derivatives can be prepared with high yield and purity on industrial scale.
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