Potassium Carbonate → HCID 59215830, compound
Reaction equation
[NH:1]1[CH2:5][CH2:4][CH2:3][C@@H:2]1[CH2:6][NH:7][C:8](=[O:17])[O:9][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.C([O-])([O-])=O.[K+].[K+].Br[CH:25]([C:31]([O:33][CH2:34][CH3:35])=[O:32])[C:26]([O:28][CH2:29][CH3:30])=[O:27]>C(#N)C>[C:11]1([CH2:10][O:9][C:8]([NH:7][CH2:6][C@H:2]2[CH2:3][CH2:4][CH2:5][N:1]2[CH:25]([C:26]([O:28][CH2:29][CH3:30])=[O:27])[C:31]([O:33][CH2:34][CH3:35])=[O:32])=[O:17])[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
To a mixture of phenylmethyl [(2R)-2-pyrrolidinylmethyl]carbamate (D109, 1.26 g, 5.38 mmol) and K2CO3 (1.48 g, 10.76 mmol) in acetonitrile (20 ml), cooled to 0° C., was added dropwise diethyl bromomalonate (1.08 ml, 6.46 mmol) in a 2-3 mins time. Then the reaction mixture was allowed to warm-up to r.t. and it was stirred at this temperature for 2.5 hrs. Further diethyl bromomalonate (1.08 ml, 1.6 mmol) was added and the reaction mixture was stirred for one more hour.
Workup
- temperatureto warm-up to r.t.
- stirringthe reaction mixture was stirred for one more hour
Sources & evidence
- ORD record
- ord-71342139321a43d584b27ce223138b4c
- Source dataset
- uspto-grants-2010_03
- Patent number
- US07683056B2
Reaction notes
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