Dichloromethane → HCID 24983902, compound
Reaction equation
Br[C:2]1[N:7]=[C:6]2[N:8]([CH2:12][CH2:13][CH:14]3[CH2:19][CH2:18][O:17][CH2:16][CH2:15]3)[C:9](=[O:11])[NH:10][C:5]2=[N:4][CH:3]=1.B(O)(O)[C:21]1[CH:26]=[CH:25][C:24]([C:27]([NH2:29])=[O:28])=[CH:23][CH:22]=1.ClCCl.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>CN(C)C=O.O>[O:11]=[C:9]1[NH:10][C:5]2=[N:4][CH:3]=[C:2]([C:21]3[CH:26]=[CH:25][C:24]([C:27]([NH2:29])=[O:28])=[CH:23][CH:22]=3)[N:7]=[C:6]2[N:8]1[CH2:12][CH2:13][CH:14]1[CH2:19][CH2:18][O:17][CH2:16][CH2:15]1Participants
Procedure
4-(2-oxo-3-(2-(Tetrahydro-2H-pyran-4-yl)ethyl)-2,3-dihydro-1H-imidazol-[4,5-b]pyrazin-5-yl)benzamide. 6-Bromo-1-(2-(tetrahydro-2H-pyran-4-yl)ethyl)-1H-imidazo[4,5-b]pyrazin-2(3H)-one (0.400 g, 1.22 mmol), 4-carboxamide-phenylboronic acid (0.241 g, 1.46 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) complex with dichloromethane (1:1) (0.098 g, 0.12 mmol), potassium phosphate (1.03 g, 4.88 mmol), water (2 ml) and dimethylformamide (7 mL) were reacted according to General Procedure B. The solution was condensed under reduced pressure and the product was crystallized from dichloromethane to give (0.400 g, 89% yield). 1H NMR (400 MHz, CD3OD) δ 8.54 (s, 1H) 8.40 (s, 1H), 8.09 (d, J=8.4, 2H), 7.94 (d, J=8.4, 1H), 4.08 (t, J=6.8, 2H), 3.92 (dd, J=11.2, 3.2, 2H), 3.64 (m, 2H), 1.83 (m, 4H), 1.59 (m, 1H), 1.38 (qd, J=12.8, 4.4, 2H); MS (ESI) m/z 368.4 [M+1]+; mp 233-236° C.
Workup
- customcondensed under reduced pressure
- customthe product was crystallized from dichloromethane
- customto give (0.400 g, 89% yield)
Sources & evidence
- ORD record
- ord-6af5f8c6f5a94a26a8cfd58ee63fdc35
- Source dataset
- uspto-grants-2011_07
- Patent number
- US07981893B2
Reaction notes
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