A process for preparing N-[(1R)-1-(1-naphthyl)ethyl]-3-[3-(trifluoromethyl)-phenyl]propan-1-amine hydrochloride salt of formula (I)
i.e. Cinacalcet hydrochloride and its intermediates of formulae (VII) and (VIII)
wherein Z is chloride or another pharmaceutically acceptable anionic counterion.
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.HCl and its intermediate of formula (IX)