The present invention is directed to a novel process for the preparation of the mesylate trihydrate of the compound of formula (I), (1S,2S)-1-(4-hydroxyphenyl)-2-(4-hydroxy-4-phenylpiperidin-1-yl)-1-propanol:
1
The present invention is further directed to a process for the preparation of a (2S)-(+)-compound of formula (II):
2
wherein R
1
is a protecting group. In addition, the present invention relates to intermediates useful in said processes.
本发明涉及一种制备公式(I)化合物的
甲磺酸三
水合物的新工艺,其中,(1S,2S)-1-(
4-羟基苯基)-2-(
4-羟基-
4-苯基哌啶-1-基)-1-
丙醇;本发明还涉及一种制备公式(II)的(2S)-(+)-化合物的工艺,其中R1是保护基。此外,本发明还涉及在所述工艺中有用的中间体。