Title:
NOVEL CRYSTALLINE FORMS OF 4-[4-[4-(HYDROXYDIPHENYLMETHYL)-1-PIPERINDINYL]-1-HYDROXYBUTYL]-alpha, alpha-DIMETHYLBENZENE ACETIC ACID AND ITS HYDROCHLORIDE
Document Type and Number:
WIPO Patent Application WO2002102777
Kind Code:
A8
Abstract:
The present invention is related to novel polymorph of Fexofenadine and Fexofenadine hydrochloride of formula 1 and process of preparation thereof. The present invention is also directed to provide pure novel polymorphs of Fexofenadine and its hydrochloride by a simple process which is cost effective, commercially viable and environment friendly.
Inventors:
REDDY M SATYANARAYANA (IN)
RAJAN S THIRUMALAI (IN)
RAO U V BHASKARA (IN)
RAJAN S THIRUMALAI (IN)
RAO U V BHASKARA (IN)
Application Number:
PCT/US2001/023994
Publication Date:
October 30, 2003
Filing Date:
July 31, 2001
Export Citation:
Assignee:
REDDYS LAB LTD DR (IN)
CORD JANET I (US)
REDDY M SATYANARAYANA (IN)
RAJAN S THIRUMALAI (IN)
RAO U V BHASKARA (IN)
CORD JANET I (US)
REDDY M SATYANARAYANA (IN)
RAJAN S THIRUMALAI (IN)
RAO U V BHASKARA (IN)
International Classes:
A61K31/445; C07D211/22; A61P43/00; B01D9/02; (IPC1-7): C07D211/22
Download PDF:
Previous Patent: PROCESS FOR THE PRODUCTION OF THE PIPERIDINE DERIVATIVE FEXOFENADINE
Next Patent: PHENYLPYRIDINE CARBONYL PIPERAZINE DERIVATIVE
Next Patent: PHENYLPYRIDINE CARBONYL PIPERAZINE DERIVATIVE