The present disclosure provides solution to the problem associated in the preparation of duloxetine hydrochloride. This disclosure is successful in preventing the racemization and thereby prevents the formation of unwanted isomer of duloxetine hydrochloride. In addition, the disclosure provides a simple technique for removal of unreacted reactant, 1-fluoronapthalene used as a reactant in the process to obtain (S)-(+)-N-methyl-3(1-naphthalenyloxy)-3-(2-thienyl)propanamine hydrochloride, compound of formula (VI).
本公开提供了解决制备
度洛西汀盐酸盐时出现的问题的解决方案。本公开成功地防止了外消旋和因此防止了
度洛西汀盐酸盐的非期望异构体的形成。此外,本公开提供了一种简单的技术,用于去除在过程中用作反应物的
1-氟萘反应物中未反应的反应物,以获得式(VI)化合物,即(S)-(+)-N-甲基-3(1-
萘氧基)-3-(2-
噻吩基)
丙胺盐酸盐。