申请人:USV LIMITED
公开号:US20160060248A1
公开(公告)日:2016-03-03
The present invention relates to a process for preparation of Dabigatran etexilate or pharmaceutically acceptable salt thereof. The present invention relates to novel compounds, in particular Ethyl-3-[(2-formyl-1-methyl-1H-benzimidazole-5-yl)carobonyl]-(2-pyridinyl)amino}propanoate and Ethyl-3-[(2-dichloromethyl-1-methyl-1H-benzimidazole-5-yl)carbonyl]-(2-pyridinyl)amino} propanoate and process for preparation thereof. The present invention further relates to the use of these novel compounds in the preparation of Dabigatran etexilate or pharmaceutically acceptable salt thereof.
本发明涉及一种制备达比加群酯或其药学上可接受的盐的方法。本发明涉及新化合物,特别是乙酸乙酯-3-[(2-甲酰基-1-甲基-1H-苯并咪唑-5-基)羧酰]-(2-吡啶基)氨基}丙酸乙酯和乙酸乙酯-3-[(2-二氯甲基-1-甲基-1H-苯并咪唑-5-基)羧酰]-(2-吡啶基)氨基}丙酸乙酯及其制备方法。本发明还涉及这些新化合物在制备达比加群酯或其药学上可接受的盐中的用途。