Processes for preparing anhydrous and hydrate forms of...

Details Processes for preparing anhydrous and hydrate forms of... Processes for preparing anhydrous and hydrate forms of...

C - Chemistry, Metallurgy

07

D

C07D 211/22 (2006.01) A61K 31/445 (2006.01)

Patent

CA 2449419

The present invention is related to novel processes for preparing anhydrous and hydrated forms of piperidine derivatives, polymorphs and pseudomorphs thereof of formulae (I) and (II) which are useful as antihistamines, antiallergic agents and bronchodilators. (see formula I) (see formula II)

La présente invention porte sur de nouveaux procédés permettant de préparer des formes anhydres et hydratées de dérivés de la pipéridine, des polymorphes et des pseudomorphes de ceux-ci ayant la formule (I) et (II), utiles en tant qu'antihistaminiques, agents contre les allergies et bronchodilateurs. (Voir formule I) (voir formule II)

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