Claims for Patent: 7,138,524

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Summary for Patent: 7,138,524

Title:	Processes for preparing anhydrous and hydrate forms of antihistaminic piperidine derivatives, polymorphs and pseudomorphs thereof
Abstract:	The present invention is related to novel processes for preparing anhydrous and hydrated forms of piperidine derivatives, polymorphs and pseudomorphs thereof of the formulas ##STR00001## which are useful as antihistamines, antiallergic agents and bronchodilators.
Inventor(s):	McCarty; Frederick J. (Hilton Head Island, SC), Carr; Albert A. (Cincinnati, OH)
Assignee:	Aventis Pharmaceuticals, Inc. (Bridgewater, NJ)
Application Number:	10/162,011
Patent Claims:	1. Form I anhydrous 4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-hydroxybutyl]-.alpha.,.a- lpha.-dimethylbenzeneacetic acid hydrochloride.

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