The present invention provides novel intermediates represented by general formula (I) etc. for preparing a phenoxyacetic acid derivative represented by general formula (X) or a pharmaceutically acceptable salt thereof, which has β3-adrenoceptor stimulating activity and are useful for treating or preventing obesity, hyperglycemia, diseases caused by intestinal hypermotility, pollakiuria, urinary incontinence, depression or biliary calculus. The present invention also provides a process for preparing said intermediates and a method of using said intermediates.
本发明提供了新型中间体,其通式表示为(I)等,用于制备通式表示为(X)的
苯氧乙酸衍
生物或其药学上可接受的盐,该衍
生物具有β3-
肾上腺素能受体激动活性,并且可用于治疗或预防肥胖症、高血糖症、肠道过动症引起的疾病、尿频、尿失禁、抑郁症或胆石症。本发明还提供了制备所述中间体的方法和使用所述中间体的方法。