Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Chloroacetamide | HCID 6580 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | tert-Butyl 4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate | HCID 389488 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 58046811 | HCID 58046811 | 98% |
Reaction Steps
To a solution of tert-butyl 4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (0.2 g, 0.43 mmol) and potassium carbonate (0.089 g, 0.65 mmol) in N,N-dimethylformamide (3 mL), was added chloroacetamide (0.04 g, 0.43 mmol). After stirring at 65° C. for 18 hours, the reaction mixture was diluted with ethyl acetate (25 mL), washed with dilute citric acid, water and brine. The organic phase was dried over MgSO4, filtered and isolated by Biotage flash chromatography (2-10% methanol/dichloromethane) to obtain the title compound (0.22 g, 98%); 1H NMR (DMSO-d6): δ 1.45 (s, 9H), 1.65 (d, 2H, J=13.2 Hz), 2.32-2.45 (m, 2H), 3.50 (br, 2H), 3.88 (br, 2H), 4.62-4.66 (m, 6H), 6.68 (d, 2H, J=8 Hz), 6.77 (t, 1H, J=7.6 Hz), 7.17 (t, 2H, J=8.4 Hz), 7.30 (s, 1H), 7.54-7.62 (m, 3H), 7.95-7.98 (m, 2H); MS for C28H34N4O6 m/z 523.04 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09156840B2 |
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| Source dataset | uspto-grants-2015_10 |
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| ORD ID | ord-9f28fa57d7094bb89b4bf9fe54c4bf4b |
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| Source note | uspto-grants-2015_10 |
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