Provided herein is an improved and industrially advantageous optical resolution method for resolving (2R,3R)/(2S,3S)-1-dimethylamino-3-(3-methoxyphenyl)-2-methylpentan-3-ol, and use thereof for the preparation of tapentadol or a pharmaceutically acceptable salt thereof. Provided further herein is an improved and industrially advantageous optical resolution method for resolving (2R,3R)/(2S,3S)-[3-(3-methoxyphenyl)-2-methylpentyl]-dimethylamine, and use thereof for the preparation of tapentadol or a pharmaceutically acceptable salt thereof. Disclosed also herein is an improved, commercially viable and industrially advantageous process for the preparation of tapentadol or a pharmaceutically acceptable salt thereof in high yield and purity.
本文提供了一种改进的、在工业上具有优势的光学分辨法,用于分离(2R,3R)/(2S,3S)-1-
二甲氨基-3-(3-
甲氧基苯基)-2-甲基戊-3-醇,以及其在制备tapentadol或其药学可接受的盐中的应用。此外,本文还提供了一种改进的、在工业上具有优势的光学分辨法,用于分离(2R,3R)/(2S,3S)-[3-(3-
甲氧基苯基)-2-甲基戊基]-
二甲胺,以及其在制备tapentadol或其药学可接受的盐中的应用。本文还披露了一种改进的、商业上可行的、在工业上具有优势的高产率和纯度的tapentadol或其药学可接受的盐的制备方法。