[EN] NOVEL SOLVATE OF DEXLANSOPRAZOLE<br/>[FR] NOUVEAU SOLVATE DU DEXLANSOPRAZOLE
申请人:ORCHID CHEMICALS & PHARM LTD
公开号:WO2011098938A1
公开(公告)日:2011-08-18
The present invention provides novel solvate of dexlansoprazole (or R- lansoprazole), particularly diol solvate and its hydrate form of dexlansoprazole (or R-lansoprazole) which is chemically known as (R)-2-[[[3-methyl-4-(2,2,2- trifluoroethoxy)-2-pyridinyl] methyl] sulfmyl]-lH-benzimidazole compound of the formula (I), as well as processes for the preparation thereof. The said solvates are useful in the preparation of dexlansoprazole with enhanced chiral purity and better HPLC purity with less sulphone impurity content.
本发明提供了一种新型的左旋埃索美拉唑(或R-埃索美拉唑)溶剂化物,特别是二醇溶剂化物和其水合物形式的左旋埃索美拉唑(或R-埃索美拉唑),其化学名称为(R)-2-[[[3-甲基-4-(2,2,2-三氟乙氧基)-2-吡啶基]甲基]磺酰基]-1H-苯并咪唑化合物,其化学式为(I),以及其制备方法。所述溶剂化物在制备左旋埃索美拉唑时具有增强的手性纯度和更好的高效液相色谱纯度,同时硫酮杂质含量更少。