C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 211/90 (2006.01) A61K 31/4422 (2006.01) A61P 9/12 (2006.01)
Patent
CA 2575078
The invention relates to new addition salts comprising lercanidipine and an acid counterion selected from the group consisting of: (i) inorganic acids, (ii) sulphonic acids, (iii) monocarboxylic acids, (iv) dicarboxylic acids, (v) tricarboxylic acids, and (vi) aromatic sulphonimides, with the proviso that said acid counterion is not hydrochloric acid. In particular, both amorphous and crystalline salts of lercanidipine with benzenesulphonic and naphthalene- 1,5-disulphonic acids are disclosed, as are amorphous salts of lercanidipine with several other acid counterions.
Nouveaux sels d'addition qui contiennent de la lercanidipine et un contre-ion acide choisi dans le groupe constitué par (i) des acides inorganiques, (ii) des acides sulfoniques, (iii) des acides monocarboxyliques, (iv) des acides dicarboxyliques, (v) des acides tricarboxyliques et (vi) des sulfonimides aromatiques, à condition que ledit contre-ion acide ne soit pas de l'acide chlorhydrique. La présente invention concerne en particulier des sels à la fois amorphes et cristallins de lercanidipine avec des acides benzènesulfonique et naphtalène-1,5-disulfonique, ainsi que des sels amorphes de lercanidipine avec plusieurs autres contre-ions acides.
Leonardi Amedeo
Motta Gianni
von Raumer Markus
Macrae & Co.
Recordati Ireland Limited
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