1198286-10-0

tert-Butyl 8-benzyl-7-oxo-2,8-diazaspiro[5.5]undecane-2-carboxylate tert-Butyl 10-benzyl-11-oxo-4,10-diazaspiro[5.5]undecan-4-carboxylate tert-Butyl 10-benzyl-11-oxo-4,10-diazaspiro[5.5]undecane-4-carboxylate 1,1-Dimethylethyl 7-oxo-8-(phenylmethyl)-2,8-diazaspiro[5.5]undecane-2-carboxylate 2,8-Diazaspiro[5.5]undecane-2-carboxylic acid, 7-oxo-8-(phenylmethyl)-, 1,1-dimethylethyl ester