Benzyl 3-(2-(tert-butoxycarbonyl)benzyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate → Tert-butyl 2-((4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate

Participants

Reaction Steps

To a solution of benzyl 3-(2-(tert-butoxycarbonyl)benzyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (0.59 g, 1.06 mmol) in methanol (20 mL), was added 10 wt % palladium on carbon (0.1 g). After stirring under hydrogen at room temperature and atmospheric pressure for 2 hours, the reaction mixture was filtered, washed with methanol, concentrated in vacuo to obtain tert-butyl 2-((4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate (0.4 g, 90%).

Provenance & Evidence