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Chandra Has Khanduri, Gurgaon IN

Chandra Has Khanduri, Gurgaon IN

Patent application numberDescriptionPublished
20090143472INTERMEDIATE COMPOUNDS AND THEIR USE IN PREPARATION OF LACOSAMIDE - The present invention is concerned with novel compounds and their use for the preparation of lacosamide. The present invention also contemplates processes for the preparation of lacosamide employing the novel compound of general Formula II, Formula IIa or Formula IIb as intermediate.06-04-2009
20090306135STABLE AMORPHOUS FEXOFENADINE HYDROCHLORIDE - The present invention relates to stable amorphous form of fexofenadine hydrochloride, process for its preparation, pharmaceutical composition comprising it and its use for the treatment of allergic reactions.12-10-2009
20100016594PROCESS FOR THE PREPARATION OF CLOPIDOGREL AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS - The present invention provides a process for the preparation of clopidogrel and its pharmaceutically acceptable salts thereof comprises the resolving racemic methyl alpha-5-(4,5,6,7-tetrahydro[3,2-c]thienopyridyl)(2-chlorophenyl)-acetate by the salt formation of methyl alpha-5-(4,5,6,7-tetrahydro[3,2-c]thienopyridyl)(2-chlorophenyl)-acetate with excess levorotatory camphor-10-sulfonic acid to get a maximum yield of camphor sulphonate salt of methyl S-(+)-alpha-5-(4,5,6,7-tetrahydro[3,2-e]thienopyridyl)(2-chlorophenyl)-acetate and transforming the camphor sulphonate salt to clopidogrel or its pharmaceutically acceptable salts thereof.01-21-2010
20100099885PROCESS FOR THE PREPARATION OF FORM I AND FORM II OF RITONAVIR - The present invention relates to processes for the preparation of Form I and Form II of Ritonavir, wherein no seed crystals are used.04-22-2010
20100280093PROCESS FOR THE PREPARATION ENANTIOMERICALLY PURE SALTS OF N-METHYL-3-(1-NAPHTHALENEOXY)-3-(2-THIENYL)PROPANAMINE - The present invention relates to duloxetine salts having enantiomeric purity of 98% or more and a process for such salts.11-04-2010
20110071287PROCESS FOR THE PREPARATION OF EFAVIRENZ - The present invention relates to a process for the preparation of Efavirenz (Formula I), wherein triphosgene is used as a cyclizing agent.03-24-2011
20110224435PROCESS FOR PREPARATION OF AMORPHOUS LOPINAVIR - The present invention relates to a process for preparation of amorphous lopinavir, which is HIV protease inhibitor of Formula (I). Using agitated film drying.09-15-2011
20110263858PROCESS FOR THE PREPARATION OF CLOPIDOGREL HYDROGEN SULPHATE FORM I - The present invention relates to a process for the preparation of Form 1 of (+)-(S)-∞-(2-Chlorophenyl)-6,7-dihydrothieno[3,2-c]pyridine-5(4H)-acetic acid methyl ester hydrogen sulphate commonly known as clopidogrel bisulphate. The present invention further relates to a process for reducing the residual amount of methyl isobutyl ketone and controlling the amount of mesityl oxide in clopidogrel hydrogen sulphate Form 1 by washing with ethyl acetate. Formula (I).10-27-2011

Patent applications by Chandra Has Khanduri, Gurgaon IN