4-Piperidinecarboxamide → HCID 45275247, compound
Reaction equation
Cl.[Br:2][C:3]1[C:4](Cl)=[N:5][CH:6]=[N:7][CH:8]=1.C(N(CC)CC)C.[NH:17]1[CH2:25][CH2:24][CH:20]([C:21]([NH2:23])=[O:22])[CH2:19][CH2:18]1.C(=O)([O-])O.[Na+]>CN(C=O)C>[Br:2][C:3]1[C:4]([N:17]2[CH2:25][CH2:24][CH:20]([C:21]([NH2:23])=[O:22])[CH2:19][CH2:18]2)=[N:5][CH:6]=[N:7][CH:8]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of 5-bromo-4-chloropyrimidine hydrochloride 21 (0.10 g, 0.36 mmol) in DMF (2 mL) was added triethylamine (0.51 mL, 3.6 mmol). After stirring for 30 min, a solution of isonipecotamide (0.14 g, 1.1 mmol) in DMF (2 mL) was added and the mixture was stirred at r.t. for a further 16 h. The mixture was poured into a saturated solution of sodium hydrogen carbonate (50 mL) and extracted with EtOAc (2×25 mL). The combined organic extracts were washed with water (25 mL), brine (25 mL), dried (MgSO4) and concentrated under reduced pressure. The crude product was purified by flash column chromatography on silica gel (CH2Cl2, MeOH, 98:2) to furnish the title compound as a white solid (60 mg, 58%), m.p. 188-190° C.; umax (CHCl3)/cm−1 3012, 2853, 1682, 1566, 1447, 1359, 1144, 1017, 950; m/z (ESI) C10H14BrN4O requires 285.0346, found [M+H]+ 285.0344.
Workup
- stirringthe mixture was stirred at r.t. for a further 16 h
- extractionextracted with EtOAc (2×25 mL)
- washThe combined organic extracts were washed with water (25 mL), brine (25 mL)
- dry with materialdried (MgSO4)
- concentrationconcentrated under reduced pressure
- customThe crude product was purified by flash column chromatography on silica gel (CH2Cl2, MeOH, 98:2)
Sources & evidence
- ORD record
- ord-0fe7ba06c2244c87a2882d2ce579189a
- Source dataset
- uspto-grants-2014_07
- Patent number
- US08778925B2
Reaction notes
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