申请人:Kim Myung-Hwa
公开号:US08742160B2
公开(公告)日:2014-06-03
The present invention relates to a method for preparing a tricyclic derivative, and more particularly, to a method for preparing a tricyclic derivative intermediate with high yield and purity, the method including: introducing a hydroxy group by esterifying and substituting 2-fluoroisophthalic acid compound; introducing a piperidyl group; introducing a hydroxy group through reduction reaction; and then hydrolyzing the resultant compound, and to a method for preparing the tricyclic derivative using said intermediate. According to the method of the present invention, it is possible to provide a tricyclic derivative and an intermediate thereof with high productivity and economic feasibility as well as high purity and yield, by purifying a compound using re-crystallization unlike typical methods of using column chromatography. In addition, the method of the present invention can be usefully used for industrial mass production because sodium borohydride or lithium aluminum hydride with low risk of a fire is used unlike typical methods of using lithium borohydride which is not industrially applicable due to high risk of a fire.
本发明涉及一种制备三环衍生物的方法,更具体地,涉及一种制备高产率和高纯度的三环衍生物中间体的方法,该方法包括:通过酯化和取代2-氟异苯二甲酸化合物引入羟基;引入哌啶基;通过还原反应引入羟基;然后水解所得化合物,并且涉及使用该中间体制备三环衍生物的方法。根据本发明的方法,通过重新结晶纯化化合物而不是使用柱层析等典型方法,可以提供高产率和经济可行性以及高纯度和收率的三环衍生物和中间体。此外,本发明的方法可以用于工业大规模生产,因为使用钠硼氢化物或锂铝氢化物,其火灾风险较低,而不是使用锂硼氢化物这样的典型方法,因为锂硼氢化物由于火灾风险过高而不适用于工业应用。