申请人:Ishigiro Yuuji
公开号:US20090299075A1
公开(公告)日:2009-12-03
The industrial production of 4-(2-methyl-1-imidazolyl)-2,2-diphenylbutanamide, a urinary incontinence remedy, necessitates elimination of problems concerning the use of a synthetic adsorbent, e.g., HP-20, the efficiency of operation with the same, purification efficiency, etc. An acid salt, e.g., hydrochloride or phosphate, of 4-(2-methyl-1-imidazolyl)-2,2-diphenylbutanamide or a hydrate of any of these salts is used as an intermediate. This intermediate is neutralized and then purified. Thus, high-purity 4-(2-methyl-1-imidazolyl)-2,2-diphenylbutanamide is easily obtained in satisfactory yield. The industrial-scale production process has been thus established.
4-(2-甲基-1-咪唑基)-2,2-二苯基丁酰胺是一种治疗尿失禁的药物,其工业生产需要解决使用合成吸附剂(如HP-20)、操作效率和纯化效率等问题。其中,4-(2-甲基-1-咪唑基)-2,2-二苯基丁酰胺的酸盐(如盐酸盐或磷酸盐)或任何这些盐的水合物被用作中间体。这个中间体被中和然后纯化。因此,高纯度的4-(2-甲基-1-咪唑基)-2,2-二苯基丁酰胺可以轻松地以令人满意的产量获得。工业规模的生产过程已经建立。