The present invention provides (R)-3-Amino-1-butanol (D)-tartarate (lIb); process for its preparation and its conversion to Dolutegravir. The present invention also provides an improved process for the preparation of Dolutegravir (I) or pharmaceutically acceptable salts wherein compound (XVI) is reacted with an optically active acid addition salt of (R)-3-amino-1-butanol (lla).
本发明提供(R)-3-
氨基-
1-丁醇(D)-
酒石酸盐(lIb)的制备方法及其转化为
多糖韦格。本发明还提供了一种改进的
多糖韦格(I)或药学上可接受的盐的制备方法,其中化合物(XVI)与(R)-3-
氨基-
1-丁醇(lla)的光学活性酸盐进行反应。