Synonyms: 2,8-Diazaspiro[4.5]decane-8-carboxylic acid, 1,1-dimethylethyl ester, hydrochloride (1:1);8-Diazaspiro[4.5]decane-8-carboxylic acid;2,8-Diazaspiro[4.5]decane-8-carboxylic acid, 1,1-diMethylethyl ester, Monohydrochloride;tert-Butyl 2,8-diazaspiro[4.5]decane-8-carboxylate hydrochloride;8-Boc-2,8-diaza-spiro[4.5]decane hydrochloride