CRYSTAL FORM I OF SALT OF A DIPEPTIDYL PEPTIDASE-IV INHIBITOR AND PREPARATION METHOD AND USE SAME
申请人:Shu Chutian
公开号:US20140206874A1
公开(公告)日:2014-07-24
The present invention relates to the crystal form I of salt of a dipeptidyl peptidase-IV inhibitor, and the preparation method and use thereof. In particular, it relates to the crystal form I of dihydrochloride salt of the compound (R)-2-[[7-(3-aminopiperidin-1-yl)-3,5-dimethyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl]methyl]benzonitrile represented by formula (1), which is a dipeptidyl peptidase-IV inhibitor, and the preparation method and use thereof. The crystal form I of dihydrochloride salt of the dipeptidyl peptidase-IV inhibitor represented by formula (1) is characterized in that it has characteristic peaks at 8.7±0.2°, 19.4±0.2°, 23.5±0.2° and 27.2±0.2° in X-ray powder diffraction indicated by an angle 2θ (°) using Cu-Kα irradiation.
本发明涉及一种二肽基肽酶IV抑制剂盐的晶型I,以及其制备方法和用途。具体而言,涉及化合物(R)-2-[[7-(3-氨基哌啶-1-基)-3,5-二甲基-2-氧代-2,3-二氢-1H-咪唑[4,5-b]吡啶-1-基]甲基]苯甲腈的二盐酸盐晶型I,该化合物是二肽基肽酶IV抑制剂,以及其制备方法和用途。所述化合物(1)的二盐酸盐晶型I的特征在于,在使用Cu-Kα辐射的X射线粉末衍射中,以2θ(°)表示,具有在8.7±0.2°、19.4±0.2°、23.5±0.2°和27.2±0.2°处的特征峰。