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) C07D 211/14 (2006.01) C07D 211/70 (2006.01)

Patent

CA 2189007

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

Nouveaux procédés de préparation de formes anhydres et hydratées de dérivés de pipéridine, polymorphes et pseudomorphes de ces dernières répondant aux formules (I) et (II). Les substances préparées selon les procédés de cette invention sont utiles comme antihistaminiques, agents antiallergiques et bronchodilatateurs.

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