The present invention relates to processes for the preparation of 4′-[3-[4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidino]propoxy]-3′-methoxyacetophenone and intermediates thereof. The present invention also provides a process for purifying 4′-[3-[4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidino]propoxy]-3′-methoxyacetophenone to obtain the purity greater than about 98.0 area % to about 99.0 area % as measured by HPLC, preferably greater than about 99.0 area % to about 99.5 area %, more preferably greater about 99.5 area % to about 99.9 area %. individual impurities lower than about 0.15 area %, preferably lower than about 0.1% and total impurities lower than about 0.5 area % by HPLC.
本发明涉及制备4'-[3-[4-(6-
氟-1,2-苯并
异噁唑-3-基)
哌啶基]丙氧基]-3'-甲氧基
乙酰苯酮及其中间体的工艺。本发明还提供一种用于纯化4'-[3-[4-(6-
氟-1,2-苯并
异噁唑-3-基)
哌啶基]丙氧基]-3'-甲氧基
乙酰苯酮的工艺,以获得纯度大于约98.0面积%至约99.0面积%(按HPLC测量),更优选大于约99.0面积%至约99.5面积%,更优选大于约99.5面积%至约99.9面积%。单个杂质低于约0.15面积%,更优选低于约0.1%,总杂质低于约0.5面积%(按HPLC测量)。