申请人:Singer Claude
公开号:US20090099390A1
公开(公告)日:2009-04-16
A crystalline ibandronic acid characterized by data selected from the group consisting of at least one of a powder x-ray diffraction pattern having peaks at about 4.1, 12.3 and 13.4±0.2 degrees two-theta and at least two more peaks selected from the group consisting of: 8.2, 11.3, 16.2 and 16.9 and 20.8±0.2 degrees two-theta, and by a powder X-ray diffraction pattern depicted in FIG.
1
is provided. Also provided is a crystalline ibandronic acid characterized by data selected from the group consisting of at least one of a powder x-ray diffraction pattern having peaks at about peaks at about 5.2, 11.7, and 18.7±0.2 degrees two-theta and at least two more peaks selected from the group consisting of: 5.8, 10.1, 12.0, 17.1, and 20.0±0.2 degrees two-theta and a powder X-ray diffraction pattern as depicted in FIG.
2.
Methods of preparing the crystalline forms are also provided.
提供了一种晶体伊班德酸,其特征数据选自以下组合之一:具有峰值在大约4.1、12.3和13.4±0.2度二θ的粉末X射线衍射图样,以及至少两个来自以下组合的额外峰值:8.2、11.3、16.2和16.9和20.8±0.2度二θ,并且通过图1中描述的粉末X射线衍射图样进行表征。还提供了一种晶体伊班德酸,其特征数据选自以下组合之一:具有峰值在大约5.2、11.7和18.7±0.2度二θ的粉末X射线衍射图样,以及至少两个来自以下组合的额外峰值:5.8、10.1、12.0、17.1和20.0±0.2度二θ以及如图2所示的粉末X射线衍射图样。还提供了制备这些晶体形式的方法。