HCID 67439261, compound → 1-Methyl-1,3,8-triazaspiro[4.5]decane-2,4-dione
Reaction equation
[CH3:1][N:2]1[C:6]2([CH2:11][CH2:10][N:9](C(OCC3C=CC=CC=3)=O)[CH2:8][CH2:7]2)[C:5](=[O:22])[NH:4][C:3]1=[O:23]>C(O)C.[Pd]>[CH3:1][N:2]1[C:6]2([CH2:7][CH2:8][NH:9][CH2:10][CH2:11]2)[C:5](=[O:22])[NH:4][C:3]1=[O:23]Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
Palladium (10% on carbon; 1.0 g) was added to a solution of benzyl 1-methyl-2,4-dioxo-1,3,8-triazaspiro[4.5]decane-8-carboxylate (7.82 g, 24.6 mmol) in ethanol (100 mL). The reaction vessel was evacuated and back-filled with nitrogen (3×), then back-filled with hydrogen (1 atm). After 2 h, methanol (50 mL) was added to the reaction mixture and the mixture was continued to be stirred under hydrogen (1 atm). After 4 days, the mixture was filtered through celite, washed with acetone and concentrated. The mixture was diluted in acetic acid (50 mL). The reaction vessel was evacuated and back-filled with nitrogen (3×), then back-filled with hydrogen (1 atm). After 2 h, the mixture was filtered through celite, and concentrated to give the acetate salt of the title compound (2.98 g). MS 184.1 (M+1).