[EN] PROCESS FOR PREPARING CINACALCET AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF [FR] PROCÉDÉ POUR PRÉPARER DU CINACALCET ET DES SELS ACCEPTABLES SUR LE PLAN PHARMACEUTIQUE DE CELUI-CI
[EN] PROCESS FOR PREPARING CINACALCET<br/>[FR] PROCEDE DE PREPARATION DE CINACALCET
申请人:ZACH SYSTEM SPA
公开号:WO2011029833A1
公开(公告)日:2011-03-17
A process for preparing N-[(1R)-1-(1-naphthyl)ethyl]-3-[3-(trifluoromethyl)-phenyl]propan-1-amine of formula hydrochloride salt of formula (I); i.e. Cinacalcet.HC1 and its intermediate of formula (IX).
[EN] HIGHLY PURE CINACALCET OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF<br/>[FR] CINACALCET DE PURETÉ ÉLEVÉE OU L'UN DE SES SELS DE QUALITÉ PHARMACEUTIQUE
申请人:ACTAVIS GROUP PTC EHF
公开号:WO2010067204A1
公开(公告)日:2010-06-17
Provided herein are impurities of cinacalcet, (R)-α-methyl-N-[3-[3-(trifluoromethyl) phenyl]propyl]-1-(5,6,7,8-tetrahydronaphthalene)methaneamine (tetrahydro cinacalcet impurity), (R)-α-Methyl-N-[3-[3-(trifluoromethyl)phenyl]propyl]-1- naphthalenemethaneamine-N-oxide (cinacalcet N-oxide impurity) and (R)-α-methyl-N-[3-[3- (trifiuoromethyl)phenyl]methyl]-1-naphthalenemethaneamine (benzylamine impurity); and processes for preparation and isolation thereof. Provided further herein is a highly pure cinacalcet or a pharmaceutically acceptable salt thereof substantially free of impurities, processes for the preparation thereof, and pharmaceutical compositions comprising highly pure cinacalcet or a pharmaceutically acceptable salt thereof substantially free of impurities.
PROCESS FOR PREPARING CINACALCET AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
申请人:Chidambaram Venkateswaran Srinivasan
公开号:US20110172455A1
公开(公告)日:2011-07-14
The resent invention rovides a novel rocess for re arin cinacalcet of formula I and pharmaceutically acceptable salts thereof and process of purification. The present invention also provides novel nitrogen protected synthetic intermediates useful in the process of the present invention. Further, the present invention provides a novel substituted carbamate impurity and process of preparation thereof.
Method for preparing cinacalcet hydrochloride having the steps of heating (R)-1-naphthyl ethylamine (Formula I) and 3-(trifluoromethyl)benzene (Formula II)
wherein L is a halogen atom, methanesulfonate group (OMs), p-Toluenesulfonate (OTs), or triflate (OTf), in an organic solvent in presence of an inorganic base, refluxing until 3-(trifluoromethyl)benzene is completely consumed, obtaining a reaction mixture containing cinacalcet, and after treatment, obtaining cinacalcet hydrochloride having a formula of
The post treatment separates (R)-1-naphthyl ethylamine hydrochloride and cinacalcet hydrochloride by adjusting pH value, extraction, and other simple operations, and the (R)-1-naphthyl ethylamine obtained is recycled for preparing the next batch of cinacalcet hydrochloride.
Process for the Preparation of Cinacalcet and Salts Thereof, and Intermediates for Use in the Process
申请人:Kankan Rajendra Narayanrao
公开号:US20120053362A1
公开(公告)日:2012-03-01
There is provided a process for preparing a salt of the (R)- or (S)-isomer of 1-naphthylethylamine with mandelic acid or a derivative thereof, the process comprising reacting racemic 1-naphthylethylamine with mandelic acid or a derivative thereof to obtain the (R)- or (S)-isomer of 1-naphthylethylamine salt (III) with the acid. The salts also form an aspect of the present invention. There is also provided a salt of the (R)- or (S)-isomer of 1-naphthylethylamine with mandelic acid or a derivative thereof. There is also provided a process for preparing cinacalcet (I) or a salt thereof, the process comprising reacting an ester (II) with (R)-1-naphthylethylamine or a salt of (R)-1-naphthylethylamine and mandelic acid or a derivative thereof, to obtain cinacalcet, and optionally converting the cincalcet to a salt thereof.