The present patent application relates to a process for the preparation of Duloxetine and its salts comprising reacting (S) - (+)-N, N-Dimethyl-3-(2- thienyl)-3-hydroxypropanamine or a salt there of with 1-fluoronapthalene in the presence of sodium hydride and potassium 4-methyl benzoate; N- demethylation via formation of phenylcarbamate to obtain Duloxetine which may then converted in to a pharmaceutically acceptable salt.
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Page/Page column 10
(2009/12/05)
IMPROVED PROCESS FOR THE ASYMMETRIC SYNTHESIS OF DULOXETINE
This invention provides an improved asymmetric process for the synthesis of duloxetine involving arylation of Compounds of Formula I.
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Page/Page column 4
(2008/06/13)
Treatment of incontinence
Urinary incontinence in humans is treated by administration of venlafaxine or a compound chosen from a series of aryloxy propanamines.
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(2008/06/13)
Asymmetric synthesis
This invention provides a stereospecific process for the synthesis of (S)-(+)-N,N-dimethyl-3-(1-naphthalenyloxy)-3-(2-thienyl)propanamine, a key intermediate in the synthesis of duloxetine.
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(2008/06/13)
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