反应详情

To tert-butyl 3-(3-(methoxycarbonyl)benzyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (0.23 g, 0.48 mmol) was added 4M solution of HCl in dioxane (5 mL). After stirring at room temperature for an hour, the reaction mixture was concentrated in vacuo to obtain methyl 3-((4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate as a hydrochloride salt.

1. concentrationthe reaction mixture was concentrated in vacuo