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Chantreux; Dominique
Montpellier, FR
No. of patents:

Patent Number Title Of Patent Date Issued
6355809 Method for preparing (2s)-1-(2r3s)-5-chloro-3-(2-chlorophenyl) -1-(3,4-dimethoxy benzene-sulphon March 12, 2002
An improved process for preparing (2S)-1-[(2R,3S)-5-chloro-3-(2-chlorophenyl)-1-(3,4-dimethoxybenzenesulphon yl)-3-hydroxy-2,3 -dihydro-1H-indole-2-carbonyl]pyrrolidine-2-carboxamide by cyclization of (2S)-1-{[[4-chloro-2-(2-chlorobenzoyl)phenyl]-(3,4-dimethoxybenzenesulphon yl)ami
5629331 Process for the preparation of a tetrazole derivative in two crystalline forms and novel the cry May 13, 1997
The present invention relates to a process for the preparation of the 2-n.butyl-3-[[2'-(tetrazol-5-yl)biphenyl-4-yl]methyl]-1,3-diazaspiro [4.4]-non-1-en-4-one by reaction of the corresponding nitrile with an alkaline azide and triethylamine hydrochloride, recovering the 2-n.butyl-3-

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