METHOD OF OBTAINING (1S,2S)-1-(4-HYDROXYPHENYL)-2(4-HYDROXY-4-PHENYLPIPERIDIN-1-YL-1-PROPANOL METHANESULPHONATE TRIHYDRATE, METHOD OF OBTAINING NOVEL DERIVATIVES OF (2S)-1-PHENYL-2-(4-PHENYLPIPERIDIN-1-YL)-1-PROPANOL AND NOVEL DERIVATIVES OF (2S)-1-PHENYL-2-(4-PHENYLPIPERIDIN-1-YL)-1-PROPANOL OBTAINED THEREBY

摘要

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-pro panol: CHEM The present invention is further directed to a process for the preparation of a (2S)-(+)-compound of formula (II): CHEM wherein R1 is a protecting group. In addition, the present invention relates to intermediates useful in said processes.