5-Boc-5,8-diaza-spiro[3.5]nonane hydrochloride 5,8-Diaza-spiro[3.5]nonane-5-carboxylic acid tert-butyl ester hydrochloride 5,8-Diaza-spiro[3.5]nonane-5-carboxylicacidtert-butylesterhydrochloride N1,N1,N4,N4-Tetrakis[4-(tert-butyl)phenyl]naphthalene-1,4-diamine S-[2-[[[(5,5-Dimethyl-4-oxohexyl)oxy](4-nitrophenoxy)phosphoryl]oxy]ethyl] 2,2-Dimethylpropanethioate tert-butyl 5,8-diazaspiro[3.5]nonane-5-carboxylate hydrochloride Tert-butyl 5,8-diazaspiro[3.5]nonane-5-carboxylate;hydrochloride