The present invention provides compounds and crystalline forms of dicyclohexylammonium 1-benzyloxycarbonylpyrrolidin-3-yl-N-benzyloxycarbonylglycinate, useful as a synthetic intermediate in the preparation of certain boro-proline based selective inhibitors of the enzyme DPP-IV. Methods of preparing the compounds and the crystalline forms, and methods of using the compounds and crystalline forms in the preparation of certain DPP-IV inhibitors are also provided.
本发明提供了二环
己基铵1-
苯甲
氧羰基
吡咯烷-3-基-N-
苯甲
氧羰基甘
氨酸的化合物和晶体形式,可用作制备某些基于
硼脯
氨酸的选择性酶
DPP-IV
抑制剂的合成
中间体。还提供了制备这些化合物和晶体形式的方法,以及使用这些化合物和晶体形式制备某些
DPP-IV
抑制剂的方法。