3-(2-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)phenyl)pyridine → 7-(1-Fluoro-1-methylethyl)-3-[4-fluoro-3-(pyridin-3-yl)phenyl]imidazo[1,2-alpha]pyrimidine
Reaction equation
Br[C:2]1[N:6]2[CH:7]=[CH:8][C:9]([C:11]([F:14])([CH3:13])[CH3:12])=[N:10][C:5]2=[N:4][CH:3]=1.[F:15][C:16]1[CH:21]=[CH:20][C:19](B2OC(C)(C)C(C)(C)O2)=[CH:18][C:17]=1[C:31]1[CH:32]=[N:33][CH:34]=[CH:35][CH:36]=1>>[F:14][C:11]([C:9]1[CH:8]=[CH:7][N:6]2[C:2]([C:19]3[CH:20]=[CH:21][C:16]([F:15])=[C:17]([C:31]4[CH:32]=[N:33][CH:34]=[CH:35][CH:36]=4)[CH:18]=3)=[CH:3][N:4]=[C:5]2[N:10]=1)([CH3:13])[CH3:12]Participants
3
Procedure
3-Bromo-7-(1-fluoro-1-methylethyl)imidazo[1,2-α]pyrimidine was coupled with 3-[2-fluoro-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)phenyl]pyridine as described in Example 65 to afford 7-(1-fluoro-1-methylethyl)-3-[4-fluoro-3-(pyridin-3-yl)phenyl]imidazo[1,2-α]pyrimidine as a white solid after crystallisation from ethyl acetate/isohexane: δH (360 MHz, CDCl3) 1.74 (6H, d, J 22), 7.26 (1H, dd, J 7 and 2), 7.53-7.60 (2H, m), 7.80 (1H, ddd, J 8, 5 and 2), 7.94 (1H, dd, J 8 and 2), 8.05 (1H, s), 8.10 (1H, ddd, J 8, 4 and 2), 8.65 (1H, dd, J 5 and 1.5), 8.89 (1H, s), 9.13 (1H, d, J 7); m/z (ES+) 351 (M++H).
Sources & evidence
- ORD record
- ord-8dca8d925ca14515995661da07b2c4c7
- Source dataset
- uspto-grants-2005_05
- Patent number
- US06900215B2
Reaction notes
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