The present invention provides an improved process for the preparation of highly pure bexarotene of formula (I). The present invention also provides impurities of bexarotene, method of isolation and identification of these impurities, and use of these impurities as reference marker as well as reference standard.
本发明提供了一种改进的方法,用于制备
化学式(I)的高纯度
贝沙罗汀。本发明还提供了
贝沙罗汀的杂质、这些杂质的分离和鉴定方法,以及将这些杂质用作参考标记和参考标准的用途。