The invention relates to a process for preparing β-amino acid derivatives, which process can be used for the preparation of telaprevir or a pharmaceutically acceptable salt or solvate thereof, wherein the process includes an organocatalytic epoxidation reaction which avoids the use of titanium catalysts and thus avoids contamination of the final product with titanium as present in known products. Another embodiment refers to telaprevir a pharmaceutically acceptable salt or solvate thereof as well as to an intermediate product for preparation of the same, wherein the afore-mentioned products are obtained by the process described herein.
本发明涉及一种制备β-
氨基酸衍
生物的方法,该方法可用于制备特拉普雷韦或其药学上可接受的盐或溶剂,其中该方法包括一种有机催化环氧化反应,避免使用
钛催化剂,从而避免了已知产品中存在的
钛对最终产品的污染。另一种实施形式涉及特拉普雷韦的药学上可接受的盐或溶剂,以及用于制备该产品的中间产物,其中上述产品是通过本文所述的方法获得的。