Hydrogen chloride-ethyl acetate → HCID 131727442, compound

Participants

Reaction Steps

To a solution of crude 1,3-dioxo-2-[2-(tetrahydro-pyran-2-yloxy)-ethyl]-2,8-diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester (1.6 g) in ethyl acetate (1 ml), EtOH (1.0 ml) and 4N HCl/ethyl acetate (4 ml) are added at room temperature. The reaction mixture is stirred for overnight at room temperature. The solvent is removed by evaporation to give 1.06 g of crude 2-(2-hydroxy-ethyl)-2,8-diaza-spiro[4.5]decane-1,3-dione. hydrochloride.

Provenance & Evidence