Synthesis and Antibacterial Activity of Bis-[1-(Adamantan-1-Yl)Ethyl]Amine Hydrochloride

An impurity in rimantadine hydrochloride drug substance that was previously undescribed in regulatory documents and the literature was identified. Its structure was elucidated and confirmed by a convergent synthesis. A method for synthesizing bis-[1-(adamantan-1-yl)ethyl]amine hydrochloride under laboratory conditions was developed. The antibacterial activity of the synthesized compound was assessed.