Salts of aromatic sulphonic acids

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 491/044 (2006.01) A61K 31/40 (2006.01) C07D 491/04 (2006.01)

Patent

CA 2290070

The invention is a salt of the CNS-depressant trans-5- chloro-2,3,3a,12b- tetrahydro-2- methyl-1H-dibenz[2,3:6,7] oxepino[4,5-c]pyrrole and a salt- forming agent, the latter being an aromatic sulphonic acid. The disclosed salt, preferably the besylate, has favourable properties. Thus it has the required insolubility and crytallinity in order to be suitable for use in depot injection preparations.

L'invention concerne un sel de trans-5- chloro-2,3,3a,12b-tétrahydro-2- méthyl-1H-dibenz[2,3:6,7] oxépino[4,5-c]pyrrole dépresseur du système nerveux central (SNC) et un agent formant un sel, tel qu'un acide sulfonique aromatique. Ledit sel, de préférence le bésylate, a des propriétés avantageuses, dont l'insolubilité et la cristallinité requises, si bien qu'il peut être utilisé dans des préparations à retard injectables.

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