Process for preparing (+)trans-4-p-fluorophenyl-3-hydroxymethyl-1-methylpiperidine
申请人:——
公开号:US20040215020A1
公开(公告)日:2004-10-28
The present invention relates to a process for preparing (±)-trans-4-p-fluorophenyl-3-hyroxymethyl-1-methylpiperdine of formula (I). The present invention also relates to novel intermediates of the formula (IX) and (IX′) methods for preparing said intermediates and the use of said compounds for preparing Paroxetine and Omiloxetine.
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Process for producing paroxetine salts substantially free from organic solvents
申请人:ASAHI GLASS COMPANY LIMITED
公开号:US20030158416A1
公开(公告)日:2003-08-21
A paroxetine salt free from an organic solvent is produced by substantially and safely removing the organic solvents from paroxetine hydrochloride.
A process for producing a paroxetine salt, which comprises neutralizing paroxetine hydrochloride containing an organic solvent into paroxetine, then forming a salt of paroxetine with an acid other than hydrochloric acid, and crystallizing the salt from an organic solvent.
Optimized procedures for the manufacture of paroxetine salts
申请人:——
公开号:US20030032809A1
公开(公告)日:2003-02-13
Described herein are methods for manufacturing amorphous paroxetine hydrochloride by mixing a carboxylic acid salt of paroxetine with hydrogen chloride and isolating the amorphous paroxetine hydrochloride. Also described herein are methods for manufacturing substantially pure paroxetine free base and methods for obtaining paroxetine salts such as paroxetine acetate, paroxetine trifluoroacetate, and paroxetine formate. Also described are methods for preparing paroxetine carbonate, paroxetine phosphate, paroxetine sulfate, and analogous salts thereof. The paroxetine salts may be formulated for the treatment of medical disorders as described.