Triethylamine → 1-(3-(3-(4-(1H-benzo[d]imidazole-2-carbonyl)phenoxy)pyrazin-2-yl)azetidin-1-yl)ethanone
Reaction equation
[NH:1]1[CH2:4][CH:3]([C:5]2[C:6]([O:11][C:12]3[CH:17]=[CH:16][C:15]([C:18]([C:20]4[NH:24][C:23]5[CH:25]=[CH:26][CH:27]=[CH:28][C:22]=5[N:21]=4)=[O:19])=[CH:14][CH:13]=3)=[N:7][CH:8]=[CH:9][N:10]=2)[CH2:2]1.C(N(CC)CC)C.N1([C:41](=[O:43])[CH3:42])C=CN=C1.C([O-])(O)=O.[Na+]>CN(C=O)C>[NH:24]1[C:23]2[CH:25]=[CH:26][CH:27]=[CH:28][C:22]=2[N:21]=[C:20]1[C:18]([C:15]1[CH:16]=[CH:17][C:12]([O:11][C:6]2[C:5]([CH:3]3[CH2:4][N:1]([C:41](=[O:43])[CH3:42])[CH2:2]3)=[N:10][CH:9]=[CH:8][N:7]=2)=[CH:13][CH:14]=1)=[O:19]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of (4-(3-(azetidin-3-yl)pyrazin-2-yloxy)phenyl)(1H-benzo[d]imidazol-2-yl)methanone in DMF (1.0 mL) is added triethylamine (104 μL, 0.743 mmol) and 1-(1H-imidazol-1-yl)ethanone (60.0 mg, 0.545 mmol). The reaction was stirred at rt 7 h. The reaction mixture was added to saturated NaHCO3 (5 mL) and extracted with EtOAc (3×5 mL). The combined organic layers were washed with water (5 mL), saturated NaCl (5 mL), dried (MgSO4) and concentrated. Purification by RPHPLC gives 1-(3-(3-(4-(1H-benzo[d]imidazole-2-carbonyl)phenoxy)pyrazin-2-yl)azetidin-1-yl)ethanone (55.4 mg, 36.0% over 3 steps) as a white solid. MS (ESI, pos. ion) m/z: 414.0 (M+1). IC50 (uM) +++++.
Workup
- extractionextracted with EtOAc (3×5 mL)
- washThe combined organic layers were washed with water (5 mL), saturated NaCl (5 mL)
- dry with materialdried (MgSO4)
- concentrationconcentrated
- customPurification by RPHPLC
Sources & evidence
- ORD record
- ord-cb43f97bd6ae499eba2af02b232b7e90
- Source dataset
- uspto-grants-2012_08
- Patent number
- US08247418B2
Reaction notes
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