Anhydrous and hydrate polymorphic forms of antihistaminic piperidine derivatives

The present invention is related to novel processes for preparing anhydrous and hydrated forms of piperidine derivatives, polymorphs and pseudomorphs thereof of the formulas which are useful as antihistamines, antiallergic agents and bronchodilators.

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Bibliographische Detailangaben
Hauptverfasser: HENTON, DANIEL RANDOLPH, TRIPP, SUSAN IRENE, DEWITT, JILL ELIZABETH, MCCARTY, FREDERICK JOSEPH
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention is related to novel processes for preparing anhydrous and hydrated forms of piperidine derivatives, polymorphs and pseudomorphs thereof of the formulas which are useful as antihistamines, antiallergic agents and bronchodilators.